Calculatrices francaises : salaire net, SMIC, impots, bareme kilometrique, TVA, conversions.
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Generate a full 1RM-to-12RM repetition table from a known lift using Epley formula. Returns: {input_weight, input_reps, estimated_1rm}. See list_bundles for related 'sport' calculators.
Repetitions performed at that weight
Weight lifted in kg or lbs
Generate a full 1RM-to-12RM repetition table from a known lift using Epley formula. Returns: {input_weight, input_reps, estimated_1rm}. See list_bundles for related 'sport' calculators.
| Argument | Type | Description |
|---|---|---|
| reps* | number | Repetitions performed at that weight |
| weight* | number | Weight lifted in kg or lbs |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight",
"reps"
],
"properties": {
"reps": {
"type": "number",
"maximum": 30,
"minimum": 1,
"description": "Repetitions performed at that weight"
},
"weight": {
"type": "number",
"minimum": 1,
"description": "Weight lifted in kg or lbs"
}
},
"additionalProperties": false
}Add two time durations and return the total in hours and minutes. See list_bundles for related 'temps-rh' calculators.
| Argument | Type | Description |
|---|---|---|
| hours1* | number | First duration โ hours |
| hours2* | number | Second duration โ hours |
| minutes1* | number | First duration โ minutes |
| minutes2* | number | Second duration โ minutes |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"hours1",
"minutes1",
"hours2",
"minutes2"
],
"properties": {
"hours1": {
"type": "number",
"minimum": 0,
"description": "First duration โ hours"
},
"hours2": {
"type": "number",
"minimum": 0,
"description": "Second duration โ hours"
},
"minutes1": {
"type": "number",
"maximum": 59,
"minimum": 0,
"description": "First duration โ minutes"
},
"minutes2": {
"type": "number",
"maximum": 59,
"minimum": 0,
"description": "Second duration โ minutes"
}
},
"additionalProperties": false
}Calculate exact age in years, months and days from a birth date. Returns: {today, age_years, age_months, age_days, total_days_lived, days_to_next_birthday}. See list_bundles for related 'temps-rh' calculators.
| Argument | Type | Description |
|---|---|---|
| birth_date* | string | YYYY-MM-DD โ Date of birth |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"birth_date"
],
"properties": {
"birth_date": {
"type": "string",
"description": "YYYY-MM-DD โ Date of birth"
}
},
"additionalProperties": false
}Calculate exact age in multiple units from birth date. Returns: {weeks, hours, minutes, seconds}. See list_bundles for related 'fun' calculators.
| Argument | Type | Description |
|---|---|---|
| birth_date* | string | Birth date YYYY-MM-DD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"birth_date"
],
"properties": {
"birth_date": {
"type": "string",
"description": "Birth date YYYY-MM-DD"
}
},
"additionalProperties": false
}Compute alcohol units (UK) and grams of pure alcohol in a drink. Use for health tracking and limit awareness. Inputs: volume mL, ABV %. Returns UK units, grams of pure alcohol, and standard-drink equivalent. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| drinks* | array |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"drinks"
],
"properties": {
"drinks": {
"type": "array",
"items": {
"type": "object",
"required": [
"type",
"volume_ml",
"abv_pct"
],
"properties": {
"type": {
"enum": [
"beer",
"wine",
"spirit",
"cocktail"
],
"type": "string"
},
"abv_pct": {
"type": "number",
"exclusiveMinimum": 0
},
"volume_ml": {
"type": "number",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}
}
},
"additionalProperties": false
}Assess altitude sickness risk and recommend acclimatization schedule. Returns: {risk_level, risk_color, recommended_acclimatization_days, symptoms_to_watch, recommendations}. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| altitude_m* | number | Target altitude in meters |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"altitude_m"
],
"properties": {
"altitude_m": {
"type": "number",
"maximum": 8850,
"minimum": 0,
"description": "Target altitude in meters"
}
},
"additionalProperties": false
}Convert angles between degrees, radians, gradians and turns. Returns: {original}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| value* | number | Angle value |
| to_unit* | string | Target unit |
| from_unit* | string | Source unit |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from_unit",
"to_unit"
],
"properties": {
"value": {
"type": "number",
"description": "Angle value"
},
"to_unit": {
"enum": [
"degrees",
"radians",
"gradians",
"turns"
],
"type": "string",
"description": "Target unit"
},
"from_unit": {
"enum": [
"degrees",
"radians",
"gradians",
"turns"
],
"type": "string",
"description": "Source unit"
}
},
"additionalProperties": false
}Calculate periodic payment amount for a loan or annuity. Returns: {monthly_payment_eur, total_paid_eur, total_interest_eur}. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| rate* | number | Annual interest rate percent |
| periods* | number | Number of payment periods (months) |
| principal* | number | Principal amount EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"principal",
"rate",
"periods"
],
"properties": {
"rate": {
"type": "number",
"minimum": 0,
"description": "Annual interest rate percent"
},
"periods": {
"type": "number",
"description": "Number of payment periods (months)",
"exclusiveMinimum": 0
},
"principal": {
"type": "number",
"description": "Principal amount EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Universal AI-powered calculator โ handles any calculation not covered by specialized tools. Requires premium subscription.
| Argument | Type | Description |
|---|---|---|
| query* | string | Calculation request in natural language (English or French) |
| context | string | Optional context: units, constraints, domain |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"query"
],
"properties": {
"query": {
"type": "string",
"maxLength": 500,
"minLength": 3,
"description": "Calculation request in natural language (English or French)"
},
"context": {
"type": "string",
"description": "Optional context: units, constraints, domain"
}
},
"additionalProperties": false
}Compute aquarium water volume in L and US gallons. Use for fishkeeping, dosing, and stocking decisions. Inputs: shape (rectangular/cylindrical/bow-front), LรWรH or radiusรheight in cm. Returns liters and gallons. See list_bundles for related 'animaux' calculators.
| Argument | Type | Description |
|---|---|---|
| width_cm* | number | |
| height_cm* | number | |
| length_cm* | number | |
| substrate_cm | number |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"length_cm",
"width_cm",
"height_cm"
],
"properties": {
"width_cm": {
"type": "number",
"exclusiveMinimum": 0
},
"height_cm": {
"type": "number",
"exclusiveMinimum": 0
},
"length_cm": {
"type": "number",
"exclusiveMinimum": 0
},
"substrate_cm": {
"type": "number",
"default": 3,
"minimum": 0
}
},
"additionalProperties": false
}Compute area for common 2D shapes (rectangle, triangle, circle, trapezoid, etc.). Use for geometry, real estate, or paint estimates. Inputs: shape + dimensions. Returns area in input-units squared. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| d1 | number | Diagonal 1 for rhombus |
| d2 | number | Diagonal 2 for rhombus |
| side | number | Side for hexagon |
| shape* | string | Shape type |
| width | number | Width |
| height | number | Height |
| length | number | Length or base |
| radius | number | Radius |
| semi_major | number | Semi-major axis for ellipse |
| semi_minor | number | Semi-minor axis for ellipse |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"shape"
],
"properties": {
"d1": {
"type": "number",
"minimum": 0,
"description": "Diagonal 1 for rhombus"
},
"d2": {
"type": "number",
"minimum": 0,
"description": "Diagonal 2 for rhombus"
},
"side": {
"type": "number",
"minimum": 0,
"description": "Side for hexagon"
},
"shape": {
"enum": [
"rectangle",
"triangle",
"circle",
"trapezoid",
"hexagon",
"rhombus",
"ellipse"
],
"type": "string",
"description": "Shape type"
},
"width": {
"type": "number",
"minimum": 0,
"description": "Width"
},
"height": {
"type": "number",
"minimum": 0,
"description": "Height"
},
"length": {
"type": "number",
"minimum": 0,
"description": "Length or base"
},
"radius": {
"type": "number",
"minimum": 0,
"description": "Radius"
},
"semi_major": {
"type": "number",
"minimum": 0,
"description": "Semi-major axis for ellipse"
},
"semi_minor": {
"type": "number",
"minimum": 0,
"description": "Semi-minor axis for ellipse"
}
},
"additionalProperties": false
}Calculate French auto-entrepreneur (micro-enterprise) net income and social charges. Returns: {social_charges_rate_pct, social_charges, abatement_fiscal_pct, taxable_income_approx, net_before_tax, cfe_estimate_eur}. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| revenue* | number | Annual revenue (chiffre d'affaires) in euros |
| category | string | Activity category: vente (sales), service_bic, service_bnc, liberal |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"revenue"
],
"properties": {
"revenue": {
"type": "number",
"minimum": 0,
"description": "Annual revenue (chiffre d'affaires) in euros"
},
"category": {
"enum": [
"vente",
"service_bic",
"service_bnc",
"liberal"
],
"type": "string",
"default": "service_bnc",
"description": "Activity category: vente (sales), service_bic, service_bnc, liberal"
}
},
"additionalProperties": false
}Compute simple, weighted, geometric, or harmonic mean. Use for grade averages, returns, or rates. Inputs: values list, optional weights, mode. Returns mean and detail. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| values* | array | Array of numbers |
| weights | array | Optional weights for weighted average |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"values"
],
"properties": {
"values": {
"type": "array",
"items": {
"type": "number"
},
"minItems": 1,
"description": "Array of numbers"
},
"weights": {
"type": "array",
"items": {
"type": "number"
},
"description": "Optional weights for weighted average"
}
},
"additionalProperties": false
}Estimate French Baccalaurรฉat final score from grades and coefficients. Use to track lycรฉe results before official scores. Inputs: grades by subject with coefficients. Returns weighted average and mention. See list_bundles for related 'education' calculators.
| Argument | Type | Description |
|---|---|---|
| grand_oral* | number | Grand oral (/20, coeff 10) |
| philosophy* | number | Philosophy (/20, coeff 8) |
| specialty1* | number | Specialty 1 (/20, coeff 16) |
| specialty2* | number | Specialty 2 (/20, coeff 16) |
| french_oral* | number | French oral exam (/20, coeff 5) |
| french_written* | number | French written exam (/20, coeff 5) |
| continuous_control* | number | Continuous assessment score (/720 = 40%) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"continuous_control",
"french_written",
"french_oral",
"philosophy",
"specialty1",
"specialty2",
"grand_oral"
],
"properties": {
"grand_oral": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "Grand oral (/20, coeff 10)"
},
"philosophy": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "Philosophy (/20, coeff 8)"
},
"specialty1": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "Specialty 1 (/20, coeff 16)"
},
"specialty2": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "Specialty 2 (/20, coeff 16)"
},
"french_oral": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "French oral exam (/20, coeff 5)"
},
"french_written": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "French written exam (/20, coeff 5)"
},
"continuous_control": {
"type": "number",
"maximum": 720,
"minimum": 0,
"description": "Continuous assessment score (/720 = 40%)"
}
},
"additionalProperties": false
}Adjust baking recipe for high altitude (less leavening, more liquid, higher temp). Use for mountain cooking. Inputs: altitude m, ingredients. Returns adjusted recipe. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| altitude_m* | number | Altitude in meters |
| flour_cups* | number | Flour in cups |
| sugar_cups* | number | Sugar in cups |
| liquid_cups* | number | Liquid in cups |
| oven_temp_c* | number | Oven temperature ยฐC |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"altitude_m",
"flour_cups",
"sugar_cups",
"liquid_cups",
"oven_temp_c"
],
"properties": {
"altitude_m": {
"type": "number",
"minimum": 0,
"description": "Altitude in meters"
},
"flour_cups": {
"type": "number",
"minimum": 0,
"description": "Flour in cups"
},
"sugar_cups": {
"type": "number",
"minimum": 0,
"description": "Sugar in cups"
},
"liquid_cups": {
"type": "number",
"minimum": 0,
"description": "Liquid in cups"
},
"oven_temp_c": {
"type": "number",
"description": "Oven temperature ยฐC",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Convert baking measurements between cups, tablespoons, grams, and milliliters for common ingredients. Use for translating recipes across regions. Inputs: ingredient, value, from-unit, to-unit. Returns converted quantity. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| ingredient* | string | |
| quantity_cups* | number |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"ingredient",
"quantity_cups"
],
"properties": {
"ingredient": {
"enum": [
"flour",
"sugar",
"butter",
"milk",
"cream",
"eggs"
],
"type": "string"
},
"quantity_cups": {
"type": "number",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Convert numbers between bases (binary, octal, decimal, hexadecimal, any base 2-36). Returns: {input, decimal_value, result}. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| value* | string | Number as string |
| to_base* | integer | Target base |
| from_base* | integer | Source base |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from_base",
"to_base"
],
"properties": {
"value": {
"type": "string",
"description": "Number as string"
},
"to_base": {
"type": "integer",
"maximum": 36,
"minimum": 2,
"description": "Target base"
},
"from_base": {
"type": "integer",
"maximum": 36,
"minimum": 2,
"description": "Source base"
}
},
"additionalProperties": false
}Calculate max bending moment and shear for a beam under uniform distributed load. Returns: {load_kN_per_m, max_moment_kNm, max_shear_kN, note}. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| span_m* | number | Beam span in meters |
| beam_type | string | Support type |
| load_kg_per_m* | number | Distributed load in kg/m |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"span_m",
"load_kg_per_m"
],
"properties": {
"span_m": {
"type": "number",
"minimum": 0,
"description": "Beam span in meters"
},
"beam_type": {
"enum": [
"simply_supported",
"cantilever"
],
"type": "string",
"default": "simply_supported",
"description": "Support type"
},
"load_kg_per_m": {
"type": "number",
"minimum": 0,
"description": "Distributed load in kg/m"
}
},
"additionalProperties": false
}Calculate Belgian benefit-in-kind for company car (avantage de toute nature voiture). Returns: {co2_reference, benefit_rate_pct, annual_taxable_benefit, monthly_taxable_benefit, estimated_monthly_tax_impact}. See list_bundles for related 'finance-belgique' calculators.
| Argument | Type | Description |
|---|---|---|
| co2* | number | CO2 emissions in g/km |
| fuel_type | string | Fuel type |
| catalog_value* | number | Catalog value of the vehicle (HTVA) in euros |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"catalog_value",
"co2"
],
"properties": {
"co2": {
"type": "number",
"minimum": 0,
"description": "CO2 emissions in g/km"
},
"fuel_type": {
"enum": [
"diesel",
"essence",
"electric"
],
"type": "string",
"default": "essence",
"description": "Fuel type"
},
"catalog_value": {
"type": "number",
"minimum": 0,
"description": "Catalog value of the vehicle (HTVA) in euros"
}
},
"additionalProperties": false
}Compute Belgian donation tax (droits de donation) by region (Bruxelles/Flandre/Wallonie). Use for estate planning in Belgium. Inputs: region, amount, recipient relation. Returns tax due and effective rate. See list_bundles for related 'finance-belgique' calculators.
| Argument | Type | Description |
|---|---|---|
| amount* | number | Donation amount in euros |
| relationship* | string | Relationship: direct_line (parents/children), between_spouses (or cohabitants), others |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"amount",
"relationship"
],
"properties": {
"amount": {
"type": "number",
"minimum": 0,
"description": "Donation amount in euros"
},
"relationship": {
"enum": [
"direct_line",
"between_spouses",
"others"
],
"type": "string",
"description": "Relationship: direct_line (parents/children), between_spouses (or cohabitants), others"
}
},
"additionalProperties": false
}Calculate Belgian personal income tax (IPP/PB) on an annual taxable base using the income-year 2026 (tax year 2027) progressive brackets, minus the tax-free allowance reduction (SPF method). Returns: {income, tax_free_amount, tax_free_reduction, taxable_base, income_tax, effective_rate_pct, marginal_rate_pct, ...}. See list_bundles for related 'finance-belgique' calculators.
| Argument | Type | Description |
|---|---|---|
| income* | number | Annual taxable income in euros (after social security and professional expenses) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"income"
],
"properties": {
"income": {
"type": "number",
"minimum": 0,
"description": "Annual taxable income in euros (after social security and professional expenses)"
}
},
"additionalProperties": false
}Estimate Belgian retirement pension based on career years and average salary. Use for retirement planning in Belgium. Inputs: years of contribution, average salary, status (employee/self-employed). Returns monthly pension estimate. See list_bundles for related 'finance-belgique' calculators.
| Argument | Type | Description |
|---|---|---|
| career_years* | number | Number of career years |
| average_salary* | number | Average annual salary in euros |
| household_type | string | Pension type: single rate (60%) or household rate (75%) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"career_years",
"average_salary"
],
"properties": {
"career_years": {
"type": "number",
"maximum": 45,
"minimum": 0,
"description": "Number of career years"
},
"average_salary": {
"type": "number",
"minimum": 0,
"description": "Average annual salary in euros"
},
"household_type": {
"enum": [
"single",
"household"
],
"type": "string",
"default": "single",
"description": "Pension type: single rate (60%) or household rate (75%)"
}
},
"additionalProperties": false
}Convert Belgian gross monthly salary to net salary (estimate: employee ONSS 13.07% + annual personal income tax, single, no municipal surcharge; same engine as /api/v1/salaire-net?pays=be). Returns: {gross_monthly, social_cotisations_13_07pct, special_social_contribution, professional_withholding_tax, net_monthly, net_annual, ...}. See list_bundles for related 'finance-belgique' calculators.
| Argument | Type | Description |
|---|---|---|
| gross_monthly* | number | Gross monthly salary in euros |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"gross_monthly"
],
"properties": {
"gross_monthly": {
"type": "number",
"minimum": 0,
"description": "Gross monthly salary in euros"
}
},
"additionalProperties": false
}Calculate Belgian self-employed social contributions (cotisations INASTI). Returns: {annual_income, tier1_up_to_73850_at_20_5pct, tier2_73850_to_108785_at_14_16pct, tier3_above_108785, total_contributions, effective_rate_pct}. See list_bundles for related 'finance-belgique' calculators.
| Argument | Type | Description |
|---|---|---|
| annual_income* | number | Annual net professional income in euros |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"annual_income"
],
"properties": {
"annual_income": {
"type": "number",
"minimum": 0,
"description": "Annual net professional income in euros"
}
},
"additionalProperties": false
}Calculate Belgian VAT โ convert between HT and TTC. Returns: {amount_ht, amount_ttc, vat_amount, vat_rate}. See list_bundles for related 'finance-belgique' calculators.
| Argument | Type | Description |
|---|---|---|
| mode | string | Input mode: ht=before tax, ttc=after tax |
| rate | string | VAT rate: 6%, 12% or 21% |
| amount* | number | Amount in euros |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"amount"
],
"properties": {
"mode": {
"enum": [
"ht",
"ttc"
],
"type": "string",
"default": "ht",
"description": "Input mode: ht=before tax, ttc=after tax"
},
"rate": {
"enum": [
"6",
"12",
"21"
],
"type": "string",
"default": "21",
"description": "VAT rate: 6%, 12% or 21%"
},
"amount": {
"type": "number",
"minimum": 0,
"description": "Amount in euros"
}
},
"additionalProperties": false
}Compute physical, emotional, and intellectual biorhythm cycles for a date based on birth date. Use for self-tracking enthusiasts (pseudoscience). Inputs: birth date, target date. Returns 3 cycle values (-100 to +100) and zone. See list_bundles for related 'fun' calculators.
| Argument | Type | Description |
|---|---|---|
| birth_date* | string | Birth date YYYY-MM-DD |
| target_date* | string | Target date YYYY-MM-DD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"birth_date",
"target_date"
],
"properties": {
"birth_date": {
"type": "string",
"description": "Birth date YYYY-MM-DD"
},
"target_date": {
"type": "string",
"description": "Target date YYYY-MM-DD"
}
},
"additionalProperties": false
}Estimate blood alcohol content (BAC) using Widmark formula. Returns: {bac_percent, legal_status_fr, estimated_sober_in_hours}. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| sex* | string | Biological sex |
| drinks* | number | Number of standard drinks (1 drink = 14g pure alcohol) |
| weight_kg* | number | Body weight in kilograms |
| hours_drinking* | number | Hours elapsed since first drink |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"drinks",
"weight_kg",
"sex",
"hours_drinking"
],
"properties": {
"sex": {
"enum": [
"male",
"female"
],
"type": "string",
"description": "Biological sex"
},
"drinks": {
"type": "number",
"minimum": 0,
"description": "Number of standard drinks (1 drink = 14g pure alcohol)"
},
"weight_kg": {
"type": "number",
"minimum": 1,
"description": "Body weight in kilograms"
},
"hours_drinking": {
"type": "number",
"minimum": 0,
"description": "Hours elapsed since first drink"
}
},
"additionalProperties": false
}Calculate Body Mass Index (BMI) and weight category. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| height_cm* | number | Height in centimeters |
| weight_kg* | number | Weight in kilograms |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight_kg",
"height_cm"
],
"properties": {
"height_cm": {
"type": "number",
"minimum": 50,
"description": "Height in centimeters"
},
"weight_kg": {
"type": "number",
"minimum": 1,
"description": "Weight in kilograms"
}
},
"additionalProperties": false
}Calculate Basal Metabolic Rate using Mifflin-St Jeor equation. Returns: {bmr_kcal}. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| age* | number | Age in years |
| sex* | string | Biological sex |
| height_cm* | number | Height in centimeters |
| weight_kg* | number | Weight in kilograms |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight_kg",
"height_cm",
"age",
"sex"
],
"properties": {
"age": {
"type": "number",
"maximum": 120,
"minimum": 1,
"description": "Age in years"
},
"sex": {
"enum": [
"male",
"female"
],
"type": "string",
"description": "Biological sex"
},
"height_cm": {
"type": "number",
"minimum": 50,
"description": "Height in centimeters"
},
"weight_kg": {
"type": "number",
"minimum": 1,
"description": "Weight in kilograms"
}
},
"additionalProperties": false
}Estimate body fat percentage from BMI, age and sex using Deurenberg equation. Returns: {body_fat_pct}. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| age* | number | Age in years |
| bmi* | number | Body Mass Index |
| sex* | string | Biological sex |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"bmi",
"age",
"sex"
],
"properties": {
"age": {
"type": "number",
"maximum": 120,
"minimum": 1,
"description": "Age in years"
},
"bmi": {
"type": "number",
"maximum": 70,
"minimum": 10,
"description": "Body Mass Index"
},
"sex": {
"enum": [
"male",
"female"
],
"type": "string",
"description": "Biological sex"
}
},
"additionalProperties": false
}Calculate body fat percentage using the US Navy circumference method. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| sex* | string | Biological sex |
| hip_cm | number | Hip circumference in cm (widest point, required for females) |
| neck_cm* | number | Neck circumference in cm (below larynx) |
| waist_cm* | number | Waist circumference in cm (at navel for males, narrowest for females) |
| height_cm* | number | Height in centimeters |
| weight_kg | number | Body weight in kg (default 70kg for fat mass calculation) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"sex",
"waist_cm",
"neck_cm",
"height_cm"
],
"properties": {
"sex": {
"enum": [
"male",
"female"
],
"type": "string",
"description": "Biological sex"
},
"hip_cm": {
"type": "number",
"default": 90,
"minimum": 40,
"description": "Hip circumference in cm (widest point, required for females)"
},
"neck_cm": {
"type": "number",
"minimum": 20,
"description": "Neck circumference in cm (below larynx)"
},
"waist_cm": {
"type": "number",
"minimum": 40,
"description": "Waist circumference in cm (at navel for males, narrowest for females)"
},
"height_cm": {
"type": "number",
"minimum": 100,
"description": "Height in centimeters"
},
"weight_kg": {
"type": "number",
"default": 70,
"minimum": 30,
"description": "Body weight in kg (default 70kg for fat mass calculation)"
}
},
"additionalProperties": false
}Convert BPM tempo to millisecond delay times for different note values. See list_bundles for related 'musique' calculators.
| Argument | Type | Description |
|---|---|---|
| bpm* | number | Tempo in beats per minute |
| note_value* | string | Musical note value to convert |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"bpm",
"note_value"
],
"properties": {
"bpm": {
"type": "number",
"maximum": 300,
"minimum": 20,
"description": "Tempo in beats per minute"
},
"note_value": {
"enum": [
"whole",
"half",
"quarter",
"eighth",
"sixteenth",
"dotted_quarter",
"triplet_quarter"
],
"type": "string",
"description": "Musical note value to convert"
}
},
"additionalProperties": false
}Calculate bra size in FR, US or UK system from underbust and bust measurements (cm). Returns: {band_size, size, cup_diff_cm}. See list_bundles for related 'textile-mode' calculators.
| Argument | Type | Description |
|---|---|---|
| system* | string | |
| bust_cm* | number | |
| underbust_cm* | number |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"underbust_cm",
"bust_cm",
"system"
],
"properties": {
"system": {
"enum": [
"FR",
"US",
"UK"
],
"type": "string"
},
"bust_cm": {
"type": "number",
"exclusiveMinimum": 0
},
"underbust_cm": {
"type": "number",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Convert bra size between FR, US, UK and EU systems. Returns: {FR, US, UK, EU}. See list_bundles for related 'textile-mode' calculators.
| Argument | Type | Description |
|---|---|---|
| cup* | string | Cup letter (A, B, C, D, DD, E, F) |
| band_size* | integer | Band size in source system (numeric) |
| from_system* | string | Source sizing system |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"band_size",
"cup",
"from_system"
],
"properties": {
"cup": {
"type": "string",
"description": "Cup letter (A, B, C, D, DD, E, F)"
},
"band_size": {
"type": "integer",
"description": "Band size in source system (numeric)",
"exclusiveMinimum": 0
},
"from_system": {
"enum": [
"FR",
"US",
"UK",
"EU"
],
"type": "string",
"description": "Source sizing system"
}
},
"additionalProperties": false
}Compute reaction + braking distance by road condition (dry/wet/icy). Use for driver safety education. Inputs: speed km/h, reaction time s, road type. Returns total stopping distance m. See list_bundles for related 'auto-transport' calculators.
| Argument | Type | Description |
|---|---|---|
| condition | string | Road |
| speed_kmh* | number | Speed km/h |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"speed_kmh"
],
"properties": {
"condition": {
"enum": [
"dry",
"wet",
"icy"
],
"type": "string",
"default": "dry",
"description": "Road"
},
"speed_kmh": {
"type": "number",
"minimum": 1,
"description": "Speed km/h"
}
},
"additionalProperties": false
}Compute cycling gear ratio (braquet) and development per pedal turn. Use for road cycling gear analysis. Inputs: chainring teeth, sprocket teeth, wheel diameter mm. Returns ratio and meters per pedal turn. See list_bundles for related 'sport' calculators.
| Argument | Type | Description |
|---|---|---|
| cog_teeth* | number | Number of teeth on the rear cog |
| chainring_teeth* | number | Number of teeth on the front chainring |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"chainring_teeth",
"cog_teeth"
],
"properties": {
"cog_teeth": {
"type": "number",
"minimum": 1,
"description": "Number of teeth on the rear cog"
},
"chainring_teeth": {
"type": "number",
"minimum": 1,
"description": "Number of teeth on the front chainring"
}
},
"additionalProperties": false
}Compute baker's hydration % = water/flourร100. Use for bread recipe analysis. Inputs: flour g, water g. Returns hydration % and dough type (firm/standard/wet). See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| flour_grams* | number | Flour weight grams |
| water_grams* | number | Water weight grams |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"flour_grams",
"water_grams"
],
"properties": {
"flour_grams": {
"type": "number",
"description": "Flour weight grams",
"exclusiveMinimum": 0
},
"water_grams": {
"type": "number",
"description": "Water weight grams",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute break-even point in units and revenue. Use for business plans and pricing decisions. Inputs: fixed costs, price/unit, variable cost/unit. Returns break-even units and revenue. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| fixed_costs* | number | Total fixed costs |
| price_per_unit* | number | Selling price per unit |
| variable_cost_per_unit* | number | Variable cost per unit |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"fixed_costs",
"price_per_unit",
"variable_cost_per_unit"
],
"properties": {
"fixed_costs": {
"type": "number",
"minimum": 0,
"description": "Total fixed costs"
},
"price_per_unit": {
"type": "number",
"minimum": 0.01,
"description": "Selling price per unit"
},
"variable_cost_per_unit": {
"type": "number",
"minimum": 0,
"description": "Variable cost per unit"
}
},
"additionalProperties": false
}Compute due date for animal breeding given mating date and species gestation period. Use for breeders. Inputs: species (dog/cat/horse/rabbit/cow), mating date. Returns due date and gestation milestones. See list_bundles for related 'animaux' calculators.
| Argument | Type | Description |
|---|---|---|
| animal* | string | |
| mating_date* | string |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"animal",
"mating_date"
],
"properties": {
"animal": {
"enum": [
"dog",
"cat",
"rabbit",
"hamster"
],
"type": "string"
},
"mating_date": {
"type": "string",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$"
}
},
"additionalProperties": false
}Estimate French Brevet (DNB) score from grades and continuous-control marks. Use for collรจge students forecasting their result. Inputs: grades by subject, continuous control. Returns total points and mention. See list_bundles for related 'education' calculators.
| Argument | Type | Description |
|---|---|---|
| math* | number | Math exam score (/100) |
| oral* | number | Oral exam score (/100) |
| french* | number | French exam score (/100) |
| science* | number | Science score (/50) |
| history_geo* | number | History-Geography score (/50) |
| socle_commun* | number | Socle commun points (50-400) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"socle_commun",
"french",
"math",
"history_geo",
"science",
"oral"
],
"properties": {
"math": {
"type": "number",
"maximum": 100,
"minimum": 0,
"description": "Math exam score (/100)"
},
"oral": {
"type": "number",
"maximum": 100,
"minimum": 0,
"description": "Oral exam score (/100)"
},
"french": {
"type": "number",
"maximum": 100,
"minimum": 0,
"description": "French exam score (/100)"
},
"science": {
"type": "number",
"maximum": 50,
"minimum": 0,
"description": "Science score (/50)"
},
"history_geo": {
"type": "number",
"maximum": 50,
"minimum": 0,
"description": "History-Geography score (/50)"
},
"socle_commun": {
"type": "number",
"maximum": 400,
"minimum": 50,
"description": "Socle commun points (50-400)"
}
},
"additionalProperties": false
}Compute bricks or blocks needed for a wall including waste margin. Use for masonry projects. Inputs: wall dimensions, brick size, waste %. Returns brick count and pallets. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| type | string | Brick type |
| height_m* | number | Wall height m |
| length_m* | number | Wall length m |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"length_m",
"height_m"
],
"properties": {
"type": {
"enum": [
"standard",
"parpaing"
],
"type": "string",
"default": "parpaing",
"description": "Brick type"
},
"height_m": {
"type": "number",
"minimum": 0.1,
"description": "Wall height m"
},
"length_m": {
"type": "number",
"minimum": 0.1,
"description": "Wall length m"
}
},
"additionalProperties": false
}Compute buoyancy force, displaced volume, or floating analysis (Archimedes). Use for physics or shipping. Inputs: object mass/volume, fluid density. Returns buoyant force and float/sink verdict. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| volume_m3* | number | Object volume mยณ |
| object_mass* | number | Object mass kg |
| fluid_density | number | Fluid density kg/mยณ |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"volume_m3",
"object_mass"
],
"properties": {
"volume_m3": {
"type": "number",
"minimum": 0,
"description": "Object volume mยณ"
},
"object_mass": {
"type": "number",
"minimum": 0,
"description": "Object mass kg"
},
"fluid_density": {
"type": "number",
"default": 1000,
"description": "Fluid density kg/mยณ"
}
},
"additionalProperties": false
}Compute startup monthly burn rate and runway. Use for fundraising or expense control. Inputs: cash on hand, monthly expenses, monthly revenue. Returns burn, runway in months, profitability date. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| cash_balance* | number | Cash in bank EUR |
| monthly_revenue | number | Monthly revenue EUR |
| monthly_expenses* | number | Monthly expenses EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"monthly_expenses",
"cash_balance"
],
"properties": {
"cash_balance": {
"type": "number",
"minimum": 0,
"description": "Cash in bank EUR"
},
"monthly_revenue": {
"type": "number",
"default": 0,
"minimum": 0,
"description": "Monthly revenue EUR"
},
"monthly_expenses": {
"type": "number",
"minimum": 0,
"description": "Monthly expenses EUR"
}
},
"additionalProperties": false
}Compute electrical cable cross-section (mmยฒ) per NF C 15-100. Use for residential wiring. Inputs: power kW, voltage, length, max voltage drop %. Returns required section. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| power_w* | number | Power W |
| voltage | number | Voltage |
| length_m* | number | Cable length m |
| max_drop_pct | number | Max voltage drop % |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"power_w",
"length_m"
],
"properties": {
"power_w": {
"type": "number",
"minimum": 1,
"description": "Power W"
},
"voltage": {
"type": "number",
"default": 230,
"description": "Voltage"
},
"length_m": {
"type": "number",
"minimum": 1,
"description": "Cable length m"
},
"max_drop_pct": {
"type": "number",
"default": 3,
"description": "Max voltage drop %"
}
},
"additionalProperties": false
}Calculate cable section from power, voltage, distance and max voltage drop. Returns: {current_a, allowed_drop_v, calculated_section_mm2, recommended_mm2}. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| power_w* | number | Power in watts |
| voltage | number | Voltage (default 230V) |
| distance_m* | number | One-way cable distance in meters |
| max_drop_pct | number | Max voltage drop % (default 3) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"power_w",
"distance_m"
],
"properties": {
"power_w": {
"type": "number",
"minimum": 0,
"description": "Power in watts"
},
"voltage": {
"type": "number",
"default": 230,
"minimum": 1,
"description": "Voltage (default 230V)"
},
"distance_m": {
"type": "number",
"minimum": 0,
"description": "One-way cable distance in meters"
},
"max_drop_pct": {
"type": "number",
"default": 3,
"maximum": 10,
"minimum": 0.1,
"description": "Max voltage drop % (default 3)"
}
},
"additionalProperties": false
}Compute Customer Acquisition Cost vs Lifetime Value ratio. Use for SaaS unit economics analysis (target โฅ3.0). Inputs: total CAC, LTV. Returns ratio and health verdict. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| cac* | number | Customer acquisition cost EUR |
| ltv* | number | Customer lifetime value EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"cac",
"ltv"
],
"properties": {
"cac": {
"type": "number",
"minimum": 0,
"description": "Customer acquisition cost EUR"
},
"ltv": {
"type": "number",
"minimum": 0,
"description": "Customer lifetime value EUR"
}
},
"additionalProperties": false
}Compute remaining caffeine in body over time using 5-hour half-life. Use for sleep planning. Inputs: caffeine mg, time since intake. Returns remaining mg and clearance forecast. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| mg* | number | Caffeine mg consumed |
| hours | number | Hours since consumption |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"mg"
],
"properties": {
"mg": {
"type": "number",
"minimum": 0,
"description": "Caffeine mg consumed"
},
"hours": {
"type": "number",
"default": 0,
"minimum": 0,
"description": "Hours since consumption"
}
},
"additionalProperties": false
}Calculate remaining caffeine in body after time elapsed. Returns: {hours_to_below_25mg, safe_to_sleep}. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| hours_since* | number | Hours since consumption |
| mg_consumed* | number | Caffeine consumed mg |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"mg_consumed",
"hours_since"
],
"properties": {
"hours_since": {
"type": "number",
"minimum": 0,
"description": "Hours since consumption"
},
"mg_consumed": {
"type": "number",
"description": "Caffeine consumed mg",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Track caffeine intake against the safe daily limit (400 mg adult). Use for monitoring coffee/tea/soda consumption. Inputs: list of drinks (type, quantity). Returns total mg, % of limit, time-of-day distribution. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| drinks* | array |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"drinks"
],
"properties": {
"drinks": {
"type": "array",
"items": {
"type": "object",
"required": [
"type",
"quantity"
],
"properties": {
"type": {
"enum": [
"coffee",
"espresso",
"tea",
"cola",
"energy_drink"
],
"type": "string"
},
"quantity": {
"type": "number",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}
}
},
"additionalProperties": false
}Estimate calories burned during physical activity using MET values. Returns: {calories_burned}. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| activity* | string | Type of activity |
| weight_kg* | number | Body weight in kilograms |
| duration_minutes* | number | Duration in minutes |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"activity",
"duration_minutes",
"weight_kg"
],
"properties": {
"activity": {
"enum": [
"walking",
"running",
"cycling",
"swimming",
"yoga",
"hiit",
"weightlifting"
],
"type": "string",
"description": "Type of activity"
},
"weight_kg": {
"type": "number",
"minimum": 1,
"description": "Body weight in kilograms"
},
"duration_minutes": {
"type": "number",
"minimum": 1,
"description": "Duration in minutes"
}
},
"additionalProperties": false
}Calculate combined Quebec + federal income tax on an employment income with the Quebec federal abatement (16.5%), single, no dependents (same engine as /api/v1/salaire-net?pays=qc). Returns: {income_cad, quebec_provincial_tax, federal_gross_tax, federal_abatement_qc, federal_net_tax, total_combined_tax, ...}. See list_bundles for related 'finance-afrique-quebec' calculators.
| Argument | Type | Description |
|---|---|---|
| income_cad* | number | Annual employment income in CAD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"income_cad"
],
"properties": {
"income_cad": {
"type": "number",
"minimum": 0,
"description": "Annual employment income in CAD"
}
},
"additionalProperties": false
}Calculate Canadian Employment Insurance (EI) premiums for Quebec and non-Quebec residents. Returns: {gross_annual_cad, max_insurable_earnings, insurable_earnings, employee_rate_pct, employee_premium}. See list_bundles for related 'finance-afrique-quebec' calculators.
| Argument | Type | Description |
|---|---|---|
| province | string | Province: QC (Quebec rate) or other (standard rate) |
| gross_annual_cad* | number | Gross annual insurable earnings in CAD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"gross_annual_cad"
],
"properties": {
"province": {
"enum": [
"QC",
"other"
],
"type": "string",
"default": "QC",
"description": "Province: QC (Quebec rate) or other (standard rate)"
},
"gross_annual_cad": {
"type": "number",
"minimum": 0,
"description": "Gross annual insurable earnings in CAD"
}
},
"additionalProperties": false
}Calculate Canadian federal income tax (CRA) with the basic personal amount credited at the lowest rate (before any Quebec abatement). Returns: {income_cad, basic_personal_amount, basic_personal_credit, taxable_income, federal_tax, effective_rate_pct, marginal_rate_pct, ...}. See list_bundles for related 'finance-afrique-quebec' calculators.
| Argument | Type | Description |
|---|---|---|
| income_cad* | number | Annual income in Canadian dollars (CAD) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"income_cad"
],
"properties": {
"income_cad": {
"type": "number",
"minimum": 0,
"description": "Annual income in Canadian dollars (CAD)"
}
},
"additionalProperties": false
}Calculate Quebec Pension Plan (RRQ) contributions for employee. Returns: {gross_annual_cad, rrq_base_earnings, rrq_contribution_tier1, rrq_additional_earnings, rrq_contribution_tier2, total_rrq_contribution, ...}. See list_bundles for related 'finance-afrique-quebec' calculators.
| Argument | Type | Description |
|---|---|---|
| gross_annual_cad* | number | Gross annual earnings in CAD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"gross_annual_cad"
],
"properties": {
"gross_annual_cad": {
"type": "number",
"minimum": 0,
"description": "Gross annual earnings in CAD"
}
},
"additionalProperties": false
}Compute French property capital gains tax (plus-value immobiliรจre) including duration abatements. Use for sellers of secondary residence. Inputs: purchase price, sale price, years held, work cost. Returns tax due, social charges, net gain. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| sale_price* | number | Sale price in euros |
| years_held* | number | Number of years the property was held |
| purchase_price* | number | Original purchase price in euros |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"purchase_price",
"sale_price",
"years_held"
],
"properties": {
"sale_price": {
"type": "number",
"minimum": 1,
"description": "Sale price in euros"
},
"years_held": {
"type": "number",
"maximum": 50,
"minimum": 0,
"description": "Number of years the property was held"
},
"purchase_price": {
"type": "number",
"minimum": 1,
"description": "Original purchase price in euros"
}
},
"additionalProperties": false
}Calculate car residual value: Y1:-25%, Y2:-15%, Y3:-10%, Y4-5:-8%, Y6+:-5%. Returns: {residual_value, total_dep, pct_lost}. See list_bundles for related 'auto-transport' calculators.
| Argument | Type | Description |
|---|---|---|
| age_years* | number | Age in years |
| purchase_price* | number | Original price |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"purchase_price",
"age_years"
],
"properties": {
"age_years": {
"type": "number",
"maximum": 30,
"minimum": 0,
"description": "Age in years"
},
"purchase_price": {
"type": "number",
"minimum": 0,
"description": "Original price"
}
},
"additionalProperties": false
}Compare leasing vs buying a car over the same period. Use for automotive purchase decisions. Inputs: car price, lease monthly cost, loan rate, ownership years. Returns total costs and recommendation. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| car_price* | number | Car purchase price EUR |
| loan_rate* | number | Loan annual rate percent |
| loan_months* | number | Loan duration months |
| lease_months* | number | Lease duration months |
| lease_monthly* | number | Monthly lease payment EUR |
| residual_value* | number | Car residual value at lease end EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"car_price",
"lease_monthly",
"lease_months",
"residual_value",
"loan_rate",
"loan_months"
],
"properties": {
"car_price": {
"type": "number",
"description": "Car purchase price EUR",
"exclusiveMinimum": 0
},
"loan_rate": {
"type": "number",
"minimum": 0,
"description": "Loan annual rate percent"
},
"loan_months": {
"type": "number",
"description": "Loan duration months",
"exclusiveMinimum": 0
},
"lease_months": {
"type": "number",
"description": "Lease duration months",
"exclusiveMinimum": 0
},
"lease_monthly": {
"type": "number",
"description": "Monthly lease payment EUR",
"exclusiveMinimum": 0
},
"residual_value": {
"type": "number",
"minimum": 0,
"description": "Car residual value at lease end EUR"
}
},
"additionalProperties": false
}Estimate annual personal carbon footprint (tCOโe). Use for sustainability awareness. Inputs: housing, transport, diet, lifestyle. Returns total emissions and breakdown. See list_bundles for related 'vie-quotidienne' calculators.
| Argument | Type | Description |
|---|---|---|
| kwh | number | Electricity kWh/year |
| km_car | number | Car km/year |
| km_plane | number | Flight km/year |
| meat_kg_week | number | Meat kg/week |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"kwh": {
"type": "number",
"default": 0,
"description": "Electricity kWh/year"
},
"km_car": {
"type": "number",
"default": 0,
"description": "Car km/year"
},
"km_plane": {
"type": "number",
"default": 0,
"description": "Flight km/year"
},
"meat_kg_week": {
"type": "number",
"default": 0,
"description": "Meat kg/week"
}
},
"additionalProperties": false
}Estimate CO2 sequestration by trees over their lifetime. Returns: {age_factor, annual_kg_co2_per_tree, annual_kg_co2_total, lifetime_kg_co2, lifetime_tonnes_co2, equivalent_cars_off_road_1yr}. See list_bundles for related 'astronomie-nature' calculators.
| Argument | Type | Description |
|---|---|---|
| count | integer | Number of trees (default 1) |
| age_years* | integer | Age of the trees in years |
| tree_type* | string | Species of tree |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"tree_type",
"age_years"
],
"properties": {
"count": {
"type": "integer",
"default": 1,
"description": "Number of trees (default 1)",
"exclusiveMinimum": 0
},
"age_years": {
"type": "integer",
"description": "Age of the trees in years",
"exclusiveMinimum": 0
},
"tree_type": {
"enum": [
"oak",
"pine",
"birch",
"eucalyptus"
],
"type": "string",
"description": "Species of tree"
}
},
"additionalProperties": false
}Calculate hypergeometric probability of drawing specific cards from a deck. Returns: {odds_one_in}. See list_bundles for related 'jeux-probabilites' calculators.
| Argument | Type | Description |
|---|---|---|
| deck_size | number | Total number of cards in the deck (default 52) |
| draw_count* | number | Number of cards drawn |
| target_cards* | number | Number of target cards wanted in the draw |
| cards_in_deck_matching* | number | Number of target cards in the deck |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"cards_in_deck_matching",
"draw_count",
"target_cards"
],
"properties": {
"deck_size": {
"type": "number",
"default": 52,
"minimum": 1,
"description": "Total number of cards in the deck (default 52)"
},
"draw_count": {
"type": "number",
"minimum": 1,
"description": "Number of cards drawn"
},
"target_cards": {
"type": "number",
"minimum": 0,
"description": "Number of target cards wanted in the draw"
},
"cards_in_deck_matching": {
"type": "number",
"minimum": 0,
"description": "Number of target cards in the deck"
}
},
"additionalProperties": false
}Compute flooring cost including waste margin. Use for renovation budget. Inputs: surface mยฒ, product price/mยฒ, waste %. Returns total cost and mยฒ to order. See list_bundles for related 'vie-quotidienne' calculators.
| Argument | Type | Description |
|---|---|---|
| width_m* | number | Width m |
| length_m* | number | Length m |
| price_m2 | number | EUR/mยฒ |
| waste_pct | number | Waste % |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"length_m",
"width_m"
],
"properties": {
"width_m": {
"type": "number",
"minimum": 0.1,
"description": "Width m"
},
"length_m": {
"type": "number",
"minimum": 0.1,
"description": "Length m"
},
"price_m2": {
"type": "number",
"default": 30,
"description": "EUR/mยฒ"
},
"waste_pct": {
"type": "number",
"default": 10,
"description": "Waste %"
}
},
"additionalProperties": false
}Convert cat age to human-equivalent years (15+9+4ร). Use for feline health. Inputs: cat age years. Returns human-equivalent age and life stage. See list_bundles for related 'animaux' calculators.
| Argument | Type | Description |
|---|---|---|
| cat_years* | number | Cat age in years |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"cat_years"
],
"properties": {
"cat_years": {
"type": "number",
"minimum": 0,
"description": "Cat age in years"
}
},
"additionalProperties": false
}Calculate daily cat food quantity based on weight, age and lifestyle. Returns: {kcal_per_day}. See list_bundles for related 'animaux' calculators.
| Argument | Type | Description |
|---|---|---|
| age* | string | |
| indoor | boolean | |
| weight_kg* | number |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight_kg",
"age"
],
"properties": {
"age": {
"enum": [
"kitten",
"adult",
"senior"
],
"type": "string"
},
"indoor": {
"type": "boolean",
"default": true
},
"weight_kg": {
"type": "number",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute cat due date from mating date (gestation 63-67 days). Use for breeders. Inputs: mating date. Returns due date window and milestones. See list_bundles for related 'animaux' calculators.
| Argument | Type | Description |
|---|---|---|
| mating_date* | string | Mating date YYYY-MM-DD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"mating_date"
],
"properties": {
"mating_date": {
"type": "string",
"description": "Mating date YYYY-MM-DD"
}
},
"additionalProperties": false
}Calculate Belgian meal voucher (cheque-repas / maaltijdcheque) benefit. Returns: {face_value_per_voucher, employer_contribution_per_voucher, employee_contribution_per_voucher, monthly_total_vouchers, monthly_employer_cost, monthly_employee_contribution, ...}. See list_bundles for related 'finance-belgique' calculators.
| Argument | Type | Description |
|---|---|---|
| days_per_month | number | Working days per month |
| employee_contribution | number | Employee contribution per voucher (min 1.09 EUR) |
| employer_contribution | number | Employer contribution per voucher (max 6.91 EUR) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"days_per_month": {
"type": "number",
"default": 20,
"maximum": 23,
"minimum": 1,
"description": "Working days per month"
},
"employee_contribution": {
"type": "number",
"default": 1.09,
"minimum": 1.09,
"description": "Employee contribution per voucher (min 1.09 EUR)"
},
"employer_contribution": {
"type": "number",
"default": 6.91,
"maximum": 6.91,
"minimum": 0,
"description": "Employer contribution per voucher (max 6.91 EUR)"
}
},
"additionalProperties": false
}Estimate French child support (pension alimentaire) based on income, custody and number of children. Returns: {income, rate_pct, monthly_support, annual_support}. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| income* | number | Net monthly income of the paying parent in euros |
| custody | string | Custody type: full (garde principale), alternating (alternee), reduced (visite et hebergement) |
| children_count* | integer | Number of children (1-6) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"income",
"children_count"
],
"properties": {
"income": {
"type": "number",
"minimum": 0,
"description": "Net monthly income of the paying parent in euros"
},
"custody": {
"enum": [
"full",
"alternating",
"reduced"
],
"type": "string",
"default": "full",
"description": "Custody type: full (garde principale), alternating (alternee), reduced (visite et hebergement)"
},
"children_count": {
"type": "integer",
"maximum": 6,
"minimum": 1,
"description": "Number of children (1-6)"
}
},
"additionalProperties": false
}Determine Chinese zodiac animal and element from birth year. Returns: {full_sign}. See list_bundles for related 'fun' calculators.
| Argument | Type | Description |
|---|---|---|
| birth_year* | integer | Birth year |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"birth_year"
],
"properties": {
"birth_year": {
"type": "integer",
"maximum": 2100,
"minimum": 1900,
"description": "Birth year"
}
},
"additionalProperties": false
}Compute customer or revenue churn rate over a period. Use for SaaS retention analysis. Inputs: starting customers, churned, period length. Returns churn %, retention %, and annualized rate. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| period_months | number | Period in months |
| lost_customers* | number | Customers lost |
| start_customers* | number | Customers at period start |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"start_customers",
"lost_customers"
],
"properties": {
"period_months": {
"type": "number",
"default": 1,
"minimum": 1,
"description": "Period in months"
},
"lost_customers": {
"type": "number",
"minimum": 0,
"description": "Customers lost"
},
"start_customers": {
"type": "number",
"minimum": 1,
"description": "Customers at period start"
}
},
"additionalProperties": false
}Convert clothing size between EU, US and UK systems. Returns: {original}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| sex* | string | Sex |
| size* | number | Size number in source system |
| garment* | string | Type of garment |
| from_system* | string | Source system |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"size",
"from_system",
"garment",
"sex"
],
"properties": {
"sex": {
"enum": [
"male",
"female"
],
"type": "string",
"description": "Sex"
},
"size": {
"type": "number",
"description": "Size number in source system"
},
"garment": {
"enum": [
"shirt",
"pants",
"dress"
],
"type": "string",
"description": "Type of garment"
},
"from_system": {
"enum": [
"EU",
"US",
"UK"
],
"type": "string",
"description": "Source system"
}
},
"additionalProperties": false
}Compute compost volume produced from kitchen and garden waste over a year. Use for compost bin sizing. Inputs: household size, garden size mยฒ. Returns L/year and recommended bin volume. See list_bundles for related 'jardinage' calculators.
| Argument | Type | Description |
|---|---|---|
| depth_cm | number | Compost layer depth in centimeters (default 5cm) |
| surface_m2* | number | Surface area in square meters |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"surface_m2"
],
"properties": {
"depth_cm": {
"type": "number",
"default": 5,
"maximum": 30,
"minimum": 1,
"description": "Compost layer depth in centimeters (default 5cm)"
},
"surface_m2": {
"type": "number",
"minimum": 0,
"description": "Surface area in square meters"
}
},
"additionalProperties": false
}Compute compound interest growth A=P(1+r/n)^(nt). Use for savings, retirement projections, investment forecasting. Returns final amount, total interest, and yearly breakdown. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| years* | number | Investment duration in years |
| principal* | number | Initial amount |
| annual_rate* | number | Annual interest rate in % |
| compounds_per_year | number | Compounding frequency per year |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"principal",
"annual_rate",
"years"
],
"properties": {
"years": {
"type": "number",
"minimum": 0,
"description": "Investment duration in years"
},
"principal": {
"type": "number",
"minimum": 0,
"description": "Initial amount"
},
"annual_rate": {
"type": "number",
"description": "Annual interest rate in %"
},
"compounds_per_year": {
"type": "number",
"default": 12,
"minimum": 1,
"description": "Compounding frequency per year"
}
},
"additionalProperties": false
}Compute compound interest with monthly contributions (savings plan). Use for systematic savers. Inputs: initial amount, monthly contribution, annual rate %, years. Returns final value, total contributed, total interest. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| years* | number | Number of years |
| principal* | number | Initial capital EUR |
| annual_rate* | number | Annual interest rate percent |
| monthly_contribution* | number | Monthly contribution EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"principal",
"monthly_contribution",
"annual_rate",
"years"
],
"properties": {
"years": {
"type": "number",
"description": "Number of years",
"exclusiveMinimum": 0
},
"principal": {
"type": "number",
"minimum": 0,
"description": "Initial capital EUR"
},
"annual_rate": {
"type": "number",
"minimum": 0,
"description": "Annual interest rate percent"
},
"monthly_contribution": {
"type": "number",
"minimum": 0,
"description": "Monthly contribution EUR"
}
},
"additionalProperties": false
}Compute cement, sand, gravel, and water for a given concrete volume (NF DTU 21). Use for construction projects. Inputs: volume mยณ, mix ratio. Returns weights of each ingredient. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| volume_m3* | number | Volume in mยณ |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"volume_m3"
],
"properties": {
"volume_m3": {
"type": "number",
"minimum": 0.01,
"description": "Volume in mยณ"
}
},
"additionalProperties": false
}Calculate concrete stair dimensions, volume and materials using Blondel's formula. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| width_m | number | Stair width in meters (default 0.9m) |
| height_m* | number | Total stair height to climb in meters |
| num_steps* | number | Number of steps |
| thickness_cm | number | Slab thickness under each tread in cm (default 15cm) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"height_m",
"num_steps"
],
"properties": {
"width_m": {
"type": "number",
"default": 0.9,
"minimum": 0.3,
"description": "Stair width in meters (default 0.9m)"
},
"height_m": {
"type": "number",
"minimum": 0.1,
"description": "Total stair height to climb in meters"
},
"num_steps": {
"type": "number",
"maximum": 50,
"minimum": 2,
"description": "Number of steps"
},
"thickness_cm": {
"type": "number",
"default": 15,
"minimum": 10,
"description": "Slab thickness under each tread in cm (default 15cm)"
}
},
"additionalProperties": false
}Compute one owner's share of condominium charges from the budget and tantiรจmes. Use for syndic or owner verification. Inputs: total budget, tantiรจmes-owned, total tantiรจmes. Returns annual and monthly share. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| total_charges* | number | Total annual condominium charges EUR |
| ownership_share_pct* | number | Ownership share (tantiรจmes) percent |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"total_charges",
"ownership_share_pct"
],
"properties": {
"total_charges": {
"type": "number",
"description": "Total annual condominium charges EUR",
"exclusiveMinimum": 0
},
"ownership_share_pct": {
"type": "number",
"maximum": 100,
"minimum": 0,
"description": "Ownership share (tantiรจmes) percent"
}
},
"additionalProperties": false
}Compute cone volume V=(1/3)ฯrยฒh and lateral/total surface area. Use for geometry or container design. Inputs: radius, height. Returns volume and areas. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| height* | number | Height |
| radius* | number | Base radius |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"radius",
"height"
],
"properties": {
"height": {
"type": "number",
"minimum": 0,
"description": "Height"
},
"radius": {
"type": "number",
"minimum": 0,
"description": "Base radius"
}
},
"additionalProperties": false
}Compute confidence interval for a sample mean. Use for statistics, A/B test results, or polling. Inputs: mean, std dev, sample size, confidence (90/95/99%). Returns CI lower/upper bounds. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| std_dev* | number | Standard deviation |
| confidence | string | Confidence level |
| sample_mean* | number | Sample mean |
| sample_size* | number | Sample size |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"sample_mean",
"std_dev",
"sample_size"
],
"properties": {
"std_dev": {
"type": "number",
"minimum": 0,
"description": "Standard deviation"
},
"confidence": {
"enum": [
"90",
"95",
"99"
],
"type": "string",
"default": "95",
"description": "Confidence level"
},
"sample_mean": {
"type": "number",
"description": "Sample mean"
},
"sample_size": {
"type": "number",
"minimum": 2,
"description": "Sample size"
}
},
"additionalProperties": false
}Convert recipe quantities between cups, ml, grams, oz, tbsp, tsp. Use for international recipe translation. Inputs: value, from, to, ingredient (for density). Returns: {original}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| amount* | number | Amount to convert |
| to_unit* | string | Target unit |
| from_unit* | string | Source unit |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"amount",
"from_unit",
"to_unit"
],
"properties": {
"amount": {
"type": "number",
"description": "Amount to convert",
"exclusiveMinimum": 0
},
"to_unit": {
"enum": [
"cups",
"tbsp",
"tsp",
"ml",
"l",
"oz",
"g",
"kg"
],
"type": "string",
"description": "Target unit"
},
"from_unit": {
"enum": [
"cups",
"tbsp",
"tsp",
"ml",
"l",
"oz",
"g",
"kg"
],
"type": "string",
"description": "Source unit"
}
},
"additionalProperties": false
}Estimate cooking time for meat, fish, or vegetables based on weight, method, and doneness. Use for kitchen planning. Inputs: food type, weight g, cooking method (oven/grill/sous-vide), doneness. Returns time min and target internal temp. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| food* | string | |
| method* | string | |
| weight_kg* | number |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"food",
"weight_kg",
"method"
],
"properties": {
"food": {
"enum": [
"beef",
"chicken",
"pork",
"fish",
"lamb"
],
"type": "string"
},
"method": {
"enum": [
"oven",
"grill",
"boil"
],
"type": "string"
},
"weight_kg": {
"type": "number",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute the cost-per-use of a purchase to evaluate value. Use for buying decisions on durable goods or subscriptions. Inputs: purchase price, expected uses or years. Returns cost per use and break-even use count. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| item_price* | number | Item purchase price |
| expected_uses* | number | Expected number of uses |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"item_price",
"expected_uses"
],
"properties": {
"item_price": {
"type": "number",
"description": "Item purchase price",
"exclusiveMinimum": 0
},
"expected_uses": {
"type": "number",
"description": "Expected number of uses",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate unit cost price from raw materials, labor, and overhead. Returns: {total_cost}. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| labor* | number | Labor cost |
| overhead* | number | Overhead/indirect costs |
| quantity* | number | Number of units produced |
| raw_materials* | number | Raw material cost |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"raw_materials",
"labor",
"overhead",
"quantity"
],
"properties": {
"labor": {
"type": "number",
"minimum": 0,
"description": "Labor cost"
},
"overhead": {
"type": "number",
"minimum": 0,
"description": "Overhead/indirect costs"
},
"quantity": {
"type": "number",
"minimum": 1,
"description": "Number of units produced"
},
"raw_materials": {
"type": "number",
"minimum": 0,
"description": "Raw material cost"
}
},
"additionalProperties": false
}Calculate camera crop factor and equivalent focal length based on sensor width. See list_bundles for related 'photographie' calculators.
| Argument | Type | Description |
|---|---|---|
| sensor_width_mm* | number | Camera sensor width in millimeters (full frame = 36mm) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"sensor_width_mm"
],
"properties": {
"sensor_width_mm": {
"type": "number",
"minimum": 1,
"description": "Camera sensor width in millimeters (full frame = 36mm)"
}
},
"additionalProperties": false
}Compute crypto trading profit/loss including fees. Use for crypto investors tracking realized P&L. Inputs: buy price, sell price, quantity, buy fee, sell fee. Returns net P&L, ROI %, break-even price. See list_bundles for related 'crypto' calculators.
| Argument | Type | Description |
|---|---|---|
| quantity* | number | Quantity of cryptocurrency traded |
| buy_price* | number | Purchase price per unit in fiat currency |
| sell_price* | number | Sale price per unit in fiat currency |
| buy_fee_pct | number | Buy transaction fee percentage (default 0.1%) |
| sell_fee_pct | number | Sell transaction fee percentage (default 0.1%) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"buy_price",
"sell_price",
"quantity"
],
"properties": {
"quantity": {
"type": "number",
"minimum": 0,
"description": "Quantity of cryptocurrency traded"
},
"buy_price": {
"type": "number",
"minimum": 0,
"description": "Purchase price per unit in fiat currency"
},
"sell_price": {
"type": "number",
"minimum": 0,
"description": "Sale price per unit in fiat currency"
},
"buy_fee_pct": {
"type": "number",
"default": 0.1,
"minimum": 0,
"description": "Buy transaction fee percentage (default 0.1%)"
},
"sell_fee_pct": {
"type": "number",
"default": 0.1,
"minimum": 0,
"description": "Sell transaction fee percentage (default 0.1%)"
}
},
"additionalProperties": false
}Calculate French flat tax (30% PFU) on cryptocurrency capital gains at withdrawal. Returns: {gain_ratio}. See list_bundles for related 'crypto' calculators.
| Argument | Type | Description |
|---|---|---|
| total_gains_eur* | number | Total unrealized gains in the portfolio in EUR |
| withdrawal_amount_eur* | number | Amount being withdrawn/sold in EUR |
| total_portfolio_value_eur* | number | Total current portfolio value in EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"total_gains_eur",
"total_portfolio_value_eur",
"withdrawal_amount_eur"
],
"properties": {
"total_gains_eur": {
"type": "number",
"minimum": 0,
"description": "Total unrealized gains in the portfolio in EUR"
},
"withdrawal_amount_eur": {
"type": "number",
"minimum": 0,
"description": "Amount being withdrawn/sold in EUR"
},
"total_portfolio_value_eur": {
"type": "number",
"minimum": 0,
"description": "Total current portfolio value in EUR"
}
},
"additionalProperties": false
}Calculate cross exchange rate between two currencies via USD. Returns: {cross_rate_a_to_b, cross_rate_b_to_a}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| rate_a_usd* | number | Units of currency A per 1 USD |
| rate_b_usd* | number | Units of currency B per 1 USD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"rate_a_usd",
"rate_b_usd"
],
"properties": {
"rate_a_usd": {
"type": "number",
"description": "Units of currency A per 1 USD",
"exclusiveMinimum": 0
},
"rate_b_usd": {
"type": "number",
"description": "Units of currency B per 1 USD",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate currency exchange with bank margin and show fees lost. Returns: {amount_source, from_rate_vs_usd, to_rate_vs_usd, mid_market_amount, amount_after_margin, fees_lost, ...}. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| amount* | number | Amount to exchange in source currency |
| to_rate* | number | Target currency rate vs USD (e.g. JPY=150) |
| from_rate* | number | Source currency rate vs USD (e.g. EUR=1.08) |
| bank_margin_pct | number | Bank/exchange margin percentage (default 2.5%) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"amount",
"from_rate",
"to_rate"
],
"properties": {
"amount": {
"type": "number",
"minimum": 0,
"description": "Amount to exchange in source currency"
},
"to_rate": {
"type": "number",
"minimum": 0,
"description": "Target currency rate vs USD (e.g. JPY=150)"
},
"from_rate": {
"type": "number",
"minimum": 0,
"description": "Source currency rate vs USD (e.g. EUR=1.08)"
},
"bank_margin_pct": {
"type": "number",
"default": 2.5,
"maximum": 20,
"minimum": 0,
"description": "Bank/exchange margin percentage (default 2.5%)"
}
},
"additionalProperties": false
}Compute fabric meters needed for curtains, including hems and pattern repeat. Use for sewing. Inputs: window dimensions, fullness, pattern repeat. Returns fabric length to buy. See list_bundles for related 'textile-mode' calculators.
| Argument | Type | Description |
|---|---|---|
| num_panels | integer | Number of curtain panels |
| fullness_ratio | number | Fullness ratio (2 = double fullness) |
| window_width_cm* | number | Window width cm |
| window_height_cm* | number | Window height cm |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"window_width_cm",
"window_height_cm"
],
"properties": {
"num_panels": {
"type": "integer",
"default": 2,
"description": "Number of curtain panels",
"exclusiveMinimum": 0
},
"fullness_ratio": {
"type": "number",
"default": 2,
"maximum": 4,
"minimum": 1,
"description": "Fullness ratio (2 = double fullness)"
},
"window_width_cm": {
"type": "number",
"description": "Window width cm",
"exclusiveMinimum": 0
},
"window_height_cm": {
"type": "number",
"description": "Window height cm",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute total curtain width using a fullness factor (1.5-3.0ร). Use for window dressing. Inputs: window width m, fullness ratio. Returns total fabric width. See list_bundles for related 'vie-quotidienne' calculators.
| Argument | Type | Description |
|---|---|---|
| fullness | string | Fullness |
| window_cm* | number | Window width cm |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"window_cm"
],
"properties": {
"fullness": {
"enum": [
"flat",
"standard",
"generous"
],
"type": "string",
"default": "standard",
"description": "Fullness"
},
"window_cm": {
"type": "number",
"minimum": 10,
"description": "Window width cm"
}
},
"additionalProperties": false
}Estimate cycling power output considering gradient, speed and total mass. Returns: {power_watts, watts_per_kg}. See list_bundles for related 'sport' calculators.
| Argument | Type | Description |
|---|---|---|
| speed_kmh* | number | Speed in km/h |
| weight_kg* | number | Rider weight in kilograms |
| gradient_pct* | number | Road gradient in percent (positive = uphill) |
| bike_weight_kg | number | Bike weight in kilograms |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight_kg",
"gradient_pct",
"speed_kmh"
],
"properties": {
"speed_kmh": {
"type": "number",
"minimum": 0.1,
"description": "Speed in km/h"
},
"weight_kg": {
"type": "number",
"minimum": 1,
"description": "Rider weight in kilograms"
},
"gradient_pct": {
"type": "number",
"maximum": 30,
"minimum": -30,
"description": "Road gradient in percent (positive = uphill)"
},
"bike_weight_kg": {
"type": "number",
"default": 8,
"minimum": 1,
"description": "Bike weight in kilograms"
}
},
"additionalProperties": false
}Compute cylinder volume V=ฯrยฒh and surface area A=2ฯr(r+h). Use for tanks, pipes, or containers. Inputs: radius, height. Returns volume and areas. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| height* | number | Height |
| radius* | number | Radius |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"radius",
"height"
],
"properties": {
"height": {
"type": "number",
"minimum": 0,
"description": "Height"
},
"radius": {
"type": "number",
"minimum": 0,
"description": "Radius"
}
},
"additionalProperties": false
}Calculate recommended daily protein intake based on weight and fitness goal. Returns: {rate_g_per_kg, daily_protein_g, calories_from_protein}. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| goal* | string | Fitness goal |
| weight_kg* | number | Body weight in kilograms |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight_kg",
"goal"
],
"properties": {
"goal": {
"enum": [
"sedentary",
"maintain",
"build_muscle",
"endurance"
],
"type": "string",
"description": "Fitness goal"
},
"weight_kg": {
"type": "number",
"minimum": 1,
"description": "Body weight in kilograms"
}
},
"additionalProperties": false
}Check daily vitamin and mineral intake against RDA recommendations. Use for nutrition tracking. Inputs: list of foods with quantities. Returns % RDA per nutrient and deficiencies. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| age* | integer | |
| sex* | string |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"age",
"sex"
],
"properties": {
"age": {
"type": "integer",
"exclusiveMinimum": 0
},
"sex": {
"enum": [
"male",
"female"
],
"type": "string"
}
},
"additionalProperties": false
}Calculate file transfer time at a given connection speed. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| speed_mbps* | number | Connection speed in Mbps |
| file_size_gb* | number | File size in GB |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"file_size_gb",
"speed_mbps"
],
"properties": {
"speed_mbps": {
"type": "number",
"description": "Connection speed in Mbps",
"exclusiveMinimum": 0
},
"file_size_gb": {
"type": "number",
"description": "File size in GB",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Find the day of the week for any date (Zeller's congruence). Use for historical dates or birthday checks. Inputs: day, month, year. Returns weekday name. See list_bundles for related 'fun' calculators.
| Argument | Type | Description |
|---|---|---|
| date* | string | Date in YYYY-MM-DD format |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"date"
],
"properties": {
"date": {
"type": "string",
"description": "Date in YYYY-MM-DD format"
}
},
"additionalProperties": false
}Calculate days, weeks, approximate months and working days between two dates. Returns: {weeks, months_approx, working_days}. See list_bundles for related 'temps-rh' calculators.
| Argument | Type | Description |
|---|---|---|
| end_date* | string | YYYY-MM-DD โ End date |
| start_date* | string | YYYY-MM-DD โ Start date |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"start_date",
"end_date"
],
"properties": {
"end_date": {
"type": "string",
"description": "YYYY-MM-DD โ End date"
},
"start_date": {
"type": "string",
"description": "YYYY-MM-DD โ Start date"
}
},
"additionalProperties": false
}Calculate maximum loan capacity using French HCSF 35% debt ratio rule. Returns: {max_monthly_payment, max_loan, note}. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| rate | number | Annual interest rate in % (default 3.5) |
| duration_years | number | Loan duration in years (default 25) |
| existing_debts | number | Existing monthly debt payments in EUR (default 0) |
| monthly_income* | number | Net monthly income in EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"monthly_income"
],
"properties": {
"rate": {
"type": "number",
"default": 3.5,
"minimum": 0,
"description": "Annual interest rate in % (default 3.5)"
},
"duration_years": {
"type": "number",
"default": 25,
"description": "Loan duration in years (default 25)",
"exclusiveMinimum": 0
},
"existing_debts": {
"type": "number",
"default": 0,
"minimum": 0,
"description": "Existing monthly debt payments in EUR (default 0)"
},
"monthly_income": {
"type": "number",
"description": "Net monthly income in EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate debt-to-income ratio and maximum additional loan capacity. Returns: {ratio_pct, max_monthly_debt_35pct, max_additional_loan_payment, status}. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| monthly_debts* | number | Existing monthly debt payments EUR |
| monthly_income* | number | Net monthly income EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"monthly_income",
"monthly_debts"
],
"properties": {
"monthly_debts": {
"type": "number",
"minimum": 0,
"description": "Existing monthly debt payments EUR"
},
"monthly_income": {
"type": "number",
"description": "Net monthly income EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute debt-to-income (DTI) ratio. Use for mortgage qualification or financial health checks. Inputs: monthly debt, monthly gross income. Returns DTI % and risk category. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| monthly_debt* | number | Total monthly debt payments |
| monthly_income* | number | Gross monthly income |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"monthly_debt",
"monthly_income"
],
"properties": {
"monthly_debt": {
"type": "number",
"minimum": 0,
"description": "Total monthly debt payments"
},
"monthly_income": {
"type": "number",
"minimum": 1,
"description": "Gross monthly income"
}
},
"additionalProperties": false
}Estimate shipping cost from weight, distance and service (standard vs express). Returns: {cost_eur, formula, note}. See list_bundles for related 'vie-quotidienne' calculators.
| Argument | Type | Description |
|---|---|---|
| type | string | Service level |
| weight_kg* | number | Package weight kg |
| distance_km* | number | Delivery distance km |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight_kg",
"distance_km"
],
"properties": {
"type": {
"enum": [
"standard",
"express"
],
"type": "string",
"default": "standard",
"description": "Service level"
},
"weight_kg": {
"type": "number",
"minimum": 0,
"description": "Package weight kg"
},
"distance_km": {
"type": "number",
"minimum": 0,
"description": "Delivery distance km"
}
},
"additionalProperties": false
}Compute density, mass, or volume given the other two. ฯ=m/V. Use for materials, chemistry, fluid dynamics. Inputs: any 2 of (mass, volume, density). Returns the third. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| density | number | kg/mยณ |
| mass_kg | number | Mass kg |
| volume_m3 | number | Volume mยณ |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"density": {
"type": "number",
"description": "kg/mยณ"
},
"mass_kg": {
"type": "number",
"description": "Mass kg"
},
"volume_m3": {
"type": "number",
"description": "Volume mยณ"
}
},
"additionalProperties": false
}Convert density between kg/mยณ, g/cmยณ, lb/ftยณ, and lb/gal. Use for engineering, chemistry, fluid mechanics. Inputs: value, from-unit, to-unit. Returns converted density. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| value* | number | Density value |
| to_unit* | string | Target unit |
| from_unit* | string | Source unit |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from_unit",
"to_unit"
],
"properties": {
"value": {
"type": "number",
"description": "Density value",
"exclusiveMinimum": 0
},
"to_unit": {
"enum": [
"kg_m3",
"g_cm3",
"lb_ft3",
"oz_in3"
],
"type": "string",
"description": "Target unit"
},
"from_unit": {
"enum": [
"kg_m3",
"g_cm3",
"lb_ft3",
"oz_in3"
],
"type": "string",
"description": "Source unit"
}
},
"additionalProperties": false
}Calculate depth of field, near/far focus limits and hyperfocal distance for a camera lens. Returns: {near_limit_m, far_limit_m, coc_mm}. See list_bundles for related 'photographie' calculators.
| Argument | Type | Description |
|---|---|---|
| aperture* | number | Lens aperture (f-number, e.g. 2.8) |
| distance_m* | number | Subject distance in meters |
| focal_length_mm* | number | Lens focal length in millimeters |
| sensor_width_mm | number | Camera sensor width in mm (default 36 for full frame) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"focal_length_mm",
"aperture",
"distance_m"
],
"properties": {
"aperture": {
"type": "number",
"minimum": 0.7,
"description": "Lens aperture (f-number, e.g. 2.8)"
},
"distance_m": {
"type": "number",
"minimum": 0.1,
"description": "Subject distance in meters"
},
"focal_length_mm": {
"type": "number",
"minimum": 1,
"description": "Lens focal length in millimeters"
},
"sensor_width_mm": {
"type": "number",
"default": 36,
"minimum": 1,
"description": "Camera sensor width in mm (default 36 for full frame)"
}
},
"additionalProperties": false
}Compute dew point temperature using Magnus formula. Use for HVAC, weather, comfort analysis. Inputs: temperature ยฐC, relative humidity %. Returns dew point ยฐC and comfort class. See list_bundles for related 'astronomie-nature' calculators.
| Argument | Type | Description |
|---|---|---|
| temp_c* | number | Temperature ยฐC |
| humidity_pct* | number | Relative humidity % |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"temp_c",
"humidity_pct"
],
"properties": {
"temp_c": {
"type": "number",
"description": "Temperature ยฐC"
},
"humidity_pct": {
"type": "number",
"maximum": 100,
"minimum": 0,
"description": "Relative humidity %"
}
},
"additionalProperties": false
}Calculate dice roll probability for exact values, minimum or maximum targets. Returns: {probability}. See list_bundles for related 'jeux-probabilites' calculators.
| Argument | Type | Description |
|---|---|---|
| target* | number | Target value to calculate probability for |
| num_dice* | number | Number of dice to roll |
| num_sides | number | Number of sides on each die (default d6) |
| comparison* | string | Comparison type: exact match, at least target, or at most target |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"num_dice",
"target",
"comparison"
],
"properties": {
"target": {
"type": "number",
"minimum": 1,
"description": "Target value to calculate probability for"
},
"num_dice": {
"type": "number",
"maximum": 20,
"minimum": 1,
"description": "Number of dice to roll"
},
"num_sides": {
"type": "number",
"default": 6,
"maximum": 100,
"minimum": 2,
"description": "Number of sides on each die (default d6)"
},
"comparison": {
"enum": [
"exact",
"at_least",
"at_most"
],
"type": "string",
"description": "Comparison type: exact match, at least target, or at most target"
}
},
"additionalProperties": false
}Compute dilution C1ยทV1=C2ยทV2. Solve for any unknown. Use for chemistry, lab work, pharmacy. Inputs: any 3 of (C1, V1, C2, V2). Returns the fourth. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| c1 | number | Initial concentration |
| c2 | number | Final concentration |
| v1 | number | Initial volume |
| v2 | number | Final volume |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"c1": {
"type": "number",
"description": "Initial concentration"
},
"c2": {
"type": "number",
"description": "Final concentration"
},
"v1": {
"type": "number",
"description": "Initial volume"
},
"v2": {
"type": "number",
"description": "Final volume"
}
},
"additionalProperties": false
}Calculate discounted price with optional successive discounts. Returns: {original_price, price_after_first, effective_discount_pct}. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| discount_pct* | number | First discount percentage |
| discount2_pct | number | Optional second successive discount |
| original_price* | number | Original price |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"original_price",
"discount_pct"
],
"properties": {
"discount_pct": {
"type": "number",
"maximum": 100,
"minimum": 0,
"description": "First discount percentage"
},
"discount2_pct": {
"type": "number",
"default": 0,
"maximum": 100,
"minimum": 0,
"description": "Optional second successive discount"
},
"original_price": {
"type": "number",
"minimum": 0,
"description": "Original price"
}
},
"additionalProperties": false
}Compute the effective discount when stacking multiple promotions. Use for promo design or shopping comparisons. Inputs: original price, discount % list. Returns final price and effective single-discount equivalent. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| discount_1_pct* | number | First discount % |
| discount_2_pct | number | Second discount % |
| original_price* | number | Original price |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"original_price",
"discount_1_pct"
],
"properties": {
"discount_1_pct": {
"type": "number",
"maximum": 100,
"minimum": 0,
"description": "First discount %"
},
"discount_2_pct": {
"type": "number",
"default": 0,
"maximum": 100,
"minimum": 0,
"description": "Second discount %"
},
"original_price": {
"type": "number",
"minimum": 0,
"description": "Original price"
}
},
"additionalProperties": false
}Compute Euclidean distance between two 2D points. Use for geometry, mapping. Formula: โ((x2โx1)ยฒ+(y2โy1)ยฒ). Inputs: x1,y1,x2,y2. Returns distance. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| x1* | number | X1 |
| x2* | number | X2 |
| y1* | number | Y1 |
| y2* | number | Y2 |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"x1",
"y1",
"x2",
"y2"
],
"properties": {
"x1": {
"type": "number",
"description": "X1"
},
"x2": {
"type": "number",
"description": "X2"
},
"y1": {
"type": "number",
"description": "Y1"
},
"y2": {
"type": "number",
"description": "Y2"
}
},
"additionalProperties": false
}Compute Euclidean distance between two 3D points. Use for 3D modeling, physics. Formula: โ(ฮxยฒ+ฮyยฒ+ฮzยฒ). Inputs: x1,y1,z1,x2,y2,z2. Returns distance. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| x1* | number | |
| x2* | number | |
| y1* | number | |
| y2* | number | |
| z1* | number | |
| z2* | number |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"x1",
"y1",
"z1",
"x2",
"y2",
"z2"
],
"properties": {
"x1": {
"type": "number"
},
"x2": {
"type": "number"
},
"y1": {
"type": "number"
},
"y2": {
"type": "number"
},
"z1": {
"type": "number"
},
"z2": {
"type": "number"
}
},
"additionalProperties": false
}Calculate safe following distance using the 2-second rule (French highway code). Returns: {safety_distance_2s_m, highway_3s_m, note}. See list_bundles for related 'auto-transport' calculators.
| Argument | Type | Description |
|---|---|---|
| speed_kmh* | number | Vehicle speed in km/h |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"speed_kmh"
],
"properties": {
"speed_kmh": {
"type": "number",
"maximum": 250,
"minimum": 0,
"description": "Vehicle speed in km/h"
}
},
"additionalProperties": false
}Calculate the distance to the horizon from a given height. Returns: {distance_km, distance_miles, distance_nautical_miles}. See list_bundles for related 'astronomie-nature' calculators.
| Argument | Type | Description |
|---|---|---|
| height_m* | number | Observer height above ground in metres |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"height_m"
],
"properties": {
"height_m": {
"type": "number",
"description": "Observer height above ground in metres",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Convert dog age to human-equivalent years using modern AAHA method. Use for canine health monitoring. Inputs: dog age years, breed size. Returns human-equivalent age. See list_bundles for related 'animaux' calculators.
| Argument | Type | Description |
|---|---|---|
| size | string | Dog size |
| dog_years* | number | Dog age in years |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"dog_years"
],
"properties": {
"size": {
"enum": [
"small",
"medium",
"large",
"giant"
],
"type": "string",
"default": "medium",
"description": "Dog size"
},
"dog_years": {
"type": "number",
"minimum": 0,
"description": "Dog age in years"
}
},
"additionalProperties": false
}Calculate daily dog food quantity based on weight, age and activity level. Returns: {kcal_per_day}. See list_bundles for related 'animaux' calculators.
| Argument | Type | Description |
|---|---|---|
| age* | string | |
| activity* | string | |
| weight_kg* | number |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight_kg",
"age",
"activity"
],
"properties": {
"age": {
"enum": [
"puppy",
"adult",
"senior"
],
"type": "string"
},
"activity": {
"enum": [
"low",
"medium",
"high"
],
"type": "string"
},
"weight_kg": {
"type": "number",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute dog due date from mating date (gestation 63 days). Use for breeders. Inputs: mating date. Returns due date window and milestone dates. See list_bundles for related 'animaux' calculators.
| Argument | Type | Description |
|---|---|---|
| mating_date* | string | Mating date YYYY-MM-DD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"mating_date"
],
"properties": {
"mating_date": {
"type": "string",
"description": "Mating date YYYY-MM-DD"
}
},
"additionalProperties": false
}Compute calories burned by dog and human during a walk. Use for pet weight management. Inputs: dog weight, walk duration, pace. Returns calories burned by both. See list_bundles for related 'animaux' calculators.
| Argument | Type | Description |
|---|---|---|
| pace* | string | |
| duration_min* | number | |
| dog_weight_kg* | number | |
| walker_weight_kg* | number |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"walker_weight_kg",
"dog_weight_kg",
"duration_min",
"pace"
],
"properties": {
"pace": {
"enum": [
"slow",
"moderate",
"brisk"
],
"type": "string"
},
"duration_min": {
"type": "number",
"exclusiveMinimum": 0
},
"dog_weight_kg": {
"type": "number",
"exclusiveMinimum": 0
},
"walker_weight_kg": {
"type": "number",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate DCA portfolio value and performance for recurring crypto investments. See list_bundles for related 'crypto' calculators.
| Argument | Type | Description |
|---|---|---|
| periods* | number | Number of investment periods |
| average_price* | number | Average purchase price per unit over all periods |
| current_price* | number | Current market price per unit |
| investment_per_period* | number | Amount invested per period in fiat currency |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"investment_per_period",
"periods",
"average_price",
"current_price"
],
"properties": {
"periods": {
"type": "number",
"minimum": 1,
"description": "Number of investment periods"
},
"average_price": {
"type": "number",
"minimum": 0,
"description": "Average purchase price per unit over all periods"
},
"current_price": {
"type": "number",
"minimum": 0,
"description": "Current market price per unit"
},
"investment_per_period": {
"type": "number",
"minimum": 0,
"description": "Amount invested per period in fiat currency"
}
},
"additionalProperties": false
}Determine French DPE energy class from primary energy consumption. Returns: {note}. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| kwh_m2_year* | number | Primary energy consumption in kWh/m2/year |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"kwh_m2_year"
],
"properties": {
"kwh_m2_year": {
"type": "number",
"minimum": 0,
"description": "Primary energy consumption in kWh/m2/year"
}
},
"additionalProperties": false
}Compute required drain slope (% and cm/m) to ensure proper water flow per plumbing code. Use for plumbing or roof drainage. Inputs: pipe length, pipe diameter, application. Returns slope % and drop in cm. See list_bundles for related 'plomberie' calculators.
| Argument | Type | Description |
|---|---|---|
| fixture_type* | string | Type of sanitary fixture being drained |
| pipe_diameter_mm | number | Drain pipe diameter in millimeters (default 100mm) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"fixture_type"
],
"properties": {
"fixture_type": {
"enum": [
"toilet",
"shower",
"sink",
"washing_machine",
"kitchen"
],
"type": "string",
"description": "Type of sanitary fixture being drained"
},
"pipe_diameter_mm": {
"type": "number",
"default": 100,
"minimum": 32,
"description": "Drain pipe diameter in millimeters (default 100mm)"
}
},
"additionalProperties": false
}Estimate dress alteration cost and time by alteration type. Use for tailoring or wedding-dress budgeting. Inputs: alterations needed (hem, sides, sleeves), garment type. Returns total cost estimate and time hours. See list_bundles for related 'textile-mode' calculators.
| Argument | Type | Description |
|---|---|---|
| target_size* | string | Target FR dress size |
| measurement_bust* | number | Actual bust measurement cm |
| measurement_hips* | number | Actual hip measurement cm |
| measurement_waist* | number | Actual waist measurement cm |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"measurement_bust",
"measurement_waist",
"measurement_hips",
"target_size"
],
"properties": {
"target_size": {
"enum": [
"34",
"36",
"38",
"40",
"42",
"44",
"46"
],
"type": "string",
"description": "Target FR dress size"
},
"measurement_bust": {
"type": "number",
"description": "Actual bust measurement cm",
"exclusiveMinimum": 0
},
"measurement_hips": {
"type": "number",
"description": "Actual hip measurement cm",
"exclusiveMinimum": 0
},
"measurement_waist": {
"type": "number",
"description": "Actual waist measurement cm",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate estimated due date using Naegele's rule and return trimester milestone dates
| Argument | Type | Description |
|---|---|---|
| last_period_date* | string | YYYY-MM-DD โ First day of last menstrual period |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"last_period_date"
],
"properties": {
"last_period_date": {
"type": "string",
"description": "YYYY-MM-DD โ First day of last menstrual period"
}
},
"additionalProperties": false
}Calculate energy released by an earthquake from its magnitude. Returns: {energy_joules, tnt_equivalent_kg}. See list_bundles for related 'astronomie-nature' calculators.
| Argument | Type | Description |
|---|---|---|
| magnitude* | number | Richter/moment magnitude |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"magnitude"
],
"properties": {
"magnitude": {
"type": "number",
"maximum": 10,
"minimum": 0,
"description": "Richter/moment magnitude"
}
},
"additionalProperties": false
}Estimate ECTS credit workload (1 ECTS โ 25-30 study hours). Use for university course planning across Europe. Inputs: course hours, credits target. Returns expected workload and balance. See list_bundles for related 'education' calculators.
| Argument | Type | Description |
|---|---|---|
| weeks* | number | Number of weeks |
| hours_per_week* | number | Study hours per week |
| hours_per_credit | number | Hours per ECTS credit (standard: 25-30) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"hours_per_week",
"weeks"
],
"properties": {
"weeks": {
"type": "number",
"minimum": 1,
"description": "Number of weeks"
},
"hours_per_week": {
"type": "number",
"minimum": 0,
"description": "Study hours per week"
},
"hours_per_credit": {
"type": "number",
"default": 27.5,
"description": "Hours per ECTS credit (standard: 25-30)"
}
},
"additionalProperties": false
}Compute electrical power for single or three-phase circuits. Use for electrical engineering. Inputs: voltage, current, phase, power factor. Returns power kW and apparent power kVA. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| phase | string | Phase |
| cos_phi | number | Power factor |
| current* | number | Amps |
| voltage* | number | Volts |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"voltage",
"current"
],
"properties": {
"phase": {
"enum": [
"mono",
"tri"
],
"type": "string",
"default": "mono",
"description": "Phase"
},
"cos_phi": {
"type": "number",
"default": 0.8,
"description": "Power factor"
},
"current": {
"type": "number",
"minimum": 0,
"description": "Amps"
},
"voltage": {
"type": "number",
"minimum": 1,
"description": "Volts"
}
},
"additionalProperties": false
}Compute electricity cost for an appliance. Use for energy budgeting. Inputs: power W, daily usage hours, kWh price. Returns daily/monthly/yearly cost. See list_bundles for related 'vie-quotidienne' calculators.
| Argument | Type | Description |
|---|---|---|
| days | number | Days |
| power_w* | number | Watts |
| hours_day* | number | Hours/day |
| price_kwh | number | EUR/kWh |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"power_w",
"hours_day"
],
"properties": {
"days": {
"type": "number",
"default": 30,
"description": "Days"
},
"power_w": {
"type": "number",
"minimum": 0,
"description": "Watts"
},
"hours_day": {
"type": "number",
"minimum": 0,
"description": "Hours/day"
},
"price_kwh": {
"type": "number",
"default": 0.2516,
"description": "EUR/kWh"
}
},
"additionalProperties": false
}Compute annual electricity cost of a household appliance. Use for energy audit and replacement decisions. Inputs: power W, daily hours, kWh price. Returns annual cost and COโ kg. See list_bundles for related 'energie' calculators.
| Argument | Type | Description |
|---|---|---|
| power_w* | number | Power in watts |
| hours_day* | number | Hours used per day |
| price_kwh | number | EUR per kWh |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"power_w",
"hours_day"
],
"properties": {
"power_w": {
"type": "number",
"minimum": 0,
"description": "Power in watts"
},
"hours_day": {
"type": "number",
"maximum": 24,
"minimum": 0,
"description": "Hours used per day"
},
"price_kwh": {
"type": "number",
"default": 0.25,
"minimum": 0,
"description": "EUR per kWh"
}
},
"additionalProperties": false
}Compute ellipse area A=ฯยทaยทb and approximate perimeter (Ramanujan). Use for elliptical fields, tracks, or design. Inputs: semi-major a, semi-minor b. Returns area and perimeter. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| a* | number | Semi-major axis |
| b* | number | Semi-minor axis |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"a",
"b"
],
"properties": {
"a": {
"type": "number",
"minimum": 0,
"description": "Semi-major axis"
},
"b": {
"type": "number",
"minimum": 0,
"description": "Semi-minor axis"
}
},
"additionalProperties": false
}Compute recommended emergency fund target (3-6 months of expenses). Use for personal financial planning. Inputs: monthly expenses, dependents count, income stability. Returns recommended fund and savings timeline. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| dependents* | number | Number of dependents |
| job_stability* | string | Job stability level |
| monthly_expenses* | number | Monthly expenses EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"monthly_expenses",
"dependents",
"job_stability"
],
"properties": {
"dependents": {
"type": "number",
"minimum": 0,
"description": "Number of dependents"
},
"job_stability": {
"enum": [
"low",
"medium",
"high"
],
"type": "string",
"description": "Job stability level"
},
"monthly_expenses": {
"type": "number",
"description": "Monthly expenses EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute total employer cost in France (gross + social charges). Use for hiring budget or freelance vs salary comparison. Inputs: gross salary, status (cadre/non-cadre). Returns employer cost and total charges. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| gross_monthly* | number | Monthly gross salary EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"gross_monthly"
],
"properties": {
"gross_monthly": {
"type": "number",
"minimum": 0,
"description": "Monthly gross salary EUR"
}
},
"additionalProperties": false
}Calculate kinetic (ยฝmvยฒ), potential (mgh), mass-energy (E=mcยฒ), or work (Fยทd). Returns: {energy_joules, energy_kj, energy_kwh}. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| type* | string | Energy type |
| force_n | number | Force N (work) |
| mass_kg | number | Mass in kg |
| height_m | number | Height m (potential) |
| distance_m | number | Distance m (work) |
| velocity_ms | number | Velocity m/s (kinetic) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"type"
],
"properties": {
"type": {
"enum": [
"kinetic",
"potential",
"emc2",
"work"
],
"type": "string",
"description": "Energy type"
},
"force_n": {
"type": "number",
"description": "Force N (work)"
},
"mass_kg": {
"type": "number",
"description": "Mass in kg"
},
"height_m": {
"type": "number",
"description": "Height m (potential)"
},
"distance_m": {
"type": "number",
"description": "Distance m (work)"
},
"velocity_ms": {
"type": "number",
"description": "Velocity m/s (kinetic)"
}
},
"additionalProperties": false
}Solve 1st degree (ax+b=0) or 2nd degree (axยฒ+bx+c=0) equations. Returns: {error}. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| a* | number | Coefficient a |
| b* | number | Coefficient b |
| c | number | Coefficient c (for degree 2) |
| degree* | string | Equation degree |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"degree",
"a",
"b"
],
"properties": {
"a": {
"type": "number",
"description": "Coefficient a"
},
"b": {
"type": "number",
"description": "Coefficient b"
},
"c": {
"type": "number",
"default": 0,
"description": "Coefficient c (for degree 2)"
},
"degree": {
"enum": [
"1",
"2"
],
"type": "string",
"description": "Equation degree"
}
},
"additionalProperties": false
}Compute electric vehicle charging cost and time to full. Use for EV trip planning. Inputs: battery kWh, current %, target %, charger kW, kWh price. Returns cost and hours. See list_bundles for related 'energie' calculators.
| Argument | Type | Description |
|---|---|---|
| price_kwh | number | Price per kWh |
| target_pct | number | Target charge % |
| battery_kwh* | number | Battery capacity kWh |
| current_pct* | number | Current charge % |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"battery_kwh",
"current_pct"
],
"properties": {
"price_kwh": {
"type": "number",
"default": 0.25,
"minimum": 0,
"description": "Price per kWh"
},
"target_pct": {
"type": "number",
"default": 80,
"maximum": 100,
"minimum": 0,
"description": "Target charge %"
},
"battery_kwh": {
"type": "number",
"minimum": 0,
"description": "Battery capacity kWh"
},
"current_pct": {
"type": "number",
"maximum": 100,
"minimum": 0,
"description": "Current charge %"
}
},
"additionalProperties": false
}Compute excavation volume (mยณ) and truck loads needed for a foundation, pool, or trench. Use for construction. Inputs: length, width, depth (m), bulking factor. Returns mยณ to remove and 8mยณ-truck count. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| depth_m* | number | Depth in meters |
| width_m* | number | Width in meters |
| length_m* | number | Length in meters |
| soil_type | string | Soil type (swell: normal=1.25, rocky=1.50, clay=1.30) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"length_m",
"width_m",
"depth_m"
],
"properties": {
"depth_m": {
"type": "number",
"minimum": 0,
"description": "Depth in meters"
},
"width_m": {
"type": "number",
"minimum": 0,
"description": "Width in meters"
},
"length_m": {
"type": "number",
"minimum": 0,
"description": "Length in meters"
},
"soil_type": {
"enum": [
"normal",
"rocky",
"clay"
],
"type": "string",
"default": "normal",
"description": "Soil type (swell: normal=1.25, rocky=1.50, clay=1.30)"
}
},
"additionalProperties": false
}Detect the hidden margin charged by a money exchanger over the mid-market rate. Use to compare currency exchange offers. Inputs: offered rate, mid-market rate. Returns margin %. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| bank_rate* | number | Bank/bureau rate |
| market_rate* | number | Mid-market rate |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"bank_rate",
"market_rate"
],
"properties": {
"bank_rate": {
"type": "number",
"minimum": 0,
"description": "Bank/bureau rate"
},
"market_rate": {
"type": "number",
"minimum": 0,
"description": "Mid-market rate"
}
},
"additionalProperties": false
}Calculate the margin charged on a currency exchange. Returns: {cost_per_1000_eur, rating}. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| bank_rate* | number | Rate offered by bank/exchange |
| mid_market_rate* | number | Mid-market (real) exchange rate |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"bank_rate",
"mid_market_rate"
],
"properties": {
"bank_rate": {
"type": "number",
"description": "Rate offered by bank/exchange",
"exclusiveMinimum": 0
},
"mid_market_rate": {
"type": "number",
"description": "Mid-market (real) exchange rate",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate expected value and profitability of a bet or investment decision. Returns: {lose_probability}. See list_bundles for related 'jeux-probabilites' calculators.
| Argument | Type | Description |
|---|---|---|
| bet_cost | number | Upfront cost to enter the bet (default 0) |
| win_amount* | number | Net amount won if outcome is positive |
| loss_amount* | number | Net amount lost if outcome is negative |
| win_probability* | number | Probability of winning (0 to 1) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"win_probability",
"win_amount",
"loss_amount"
],
"properties": {
"bet_cost": {
"type": "number",
"default": 0,
"minimum": 0,
"description": "Upfront cost to enter the bet (default 0)"
},
"win_amount": {
"type": "number",
"description": "Net amount won if outcome is positive"
},
"loss_amount": {
"type": "number",
"minimum": 0,
"description": "Net amount lost if outcome is negative"
},
"win_probability": {
"type": "number",
"maximum": 1,
"minimum": 0,
"description": "Probability of winning (0 to 1)"
}
},
"additionalProperties": false
}Calculate the missing exposure value (aperture, shutter speed or ISO) given the other two. Returns: {ev_value, lv_value, shutter_speed_s}. See list_bundles for related 'photographie' calculators.
| Argument | Type | Description |
|---|---|---|
| iso* | number | ISO sensitivity value |
| aperture* | number | Aperture f-number |
| shutter_speed* | number | Shutter speed in seconds (e.g. 0.004 for 1/250s) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"iso",
"aperture",
"shutter_speed"
],
"properties": {
"iso": {
"type": "number",
"minimum": 50,
"description": "ISO sensitivity value"
},
"aperture": {
"type": "number",
"minimum": 0.7,
"description": "Aperture f-number"
},
"shutter_speed": {
"type": "number",
"minimum": 0.000001,
"description": "Shutter speed in seconds (e.g. 0.004 for 1/250s)"
}
},
"additionalProperties": false
}Compute fabric meters needed for a garment by pattern. Use for sewing. Inputs: garment type, size, fabric width. Returns meters of fabric. See list_bundles for related 'textile-mode' calculators.
| Argument | Type | Description |
|---|---|---|
| size* | string | Garment size |
| garment_type* | string | Garment type |
| fabric_width_cm* | number | Fabric roll width cm |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"garment_type",
"size",
"fabric_width_cm"
],
"properties": {
"size": {
"enum": [
"S",
"M",
"L",
"XL"
],
"type": "string",
"description": "Garment size"
},
"garment_type": {
"enum": [
"shirt",
"pants",
"dress",
"curtains"
],
"type": "string",
"description": "Garment type"
},
"fabric_width_cm": {
"type": "number",
"description": "Fabric roll width cm",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate fabric needed for a garment in meters (includes 10% for pattern matching). Returns: {meters_needed, note}. See list_bundles for related 'textile-mode' calculators.
| Argument | Type | Description |
|---|---|---|
| size* | string | |
| garment* | string |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"garment",
"size"
],
"properties": {
"size": {
"enum": [
"S",
"M",
"L",
"XL"
],
"type": "string"
},
"garment": {
"enum": [
"shirt",
"dress",
"pants",
"skirt",
"jacket"
],
"type": "string"
}
},
"additionalProperties": false
}Calculate factorial, permutations P(n,r), and combinations C(n,r). Returns: {factorial}. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| n* | integer | n value |
| r | integer | r value for P(n,r) and C(n,r) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"n"
],
"properties": {
"n": {
"type": "integer",
"maximum": 170,
"minimum": 0,
"description": "n value"
},
"r": {
"type": "integer",
"minimum": 0,
"description": "r value for P(n,r) and C(n,r)"
}
},
"additionalProperties": false
}Calculate NPK fertilizer quantities needed based on crop type and soil type. Returns: {total_kg}. See list_bundles for related 'jardinage' calculators.
| Argument | Type | Description |
|---|---|---|
| crop_type* | string | Type of crop to fertilize |
| soil_type* | string | Type of soil |
| surface_m2* | number | Surface area in square meters |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"surface_m2",
"crop_type",
"soil_type"
],
"properties": {
"crop_type": {
"enum": [
"lawn",
"vegetables",
"fruit_trees",
"flowers",
"potatoes"
],
"type": "string",
"description": "Type of crop to fertilize"
},
"soil_type": {
"enum": [
"clay",
"sandy",
"loam",
"chalky"
],
"type": "string",
"description": "Type of soil"
},
"surface_m2": {
"type": "number",
"minimum": 0,
"description": "Surface area in square meters"
}
},
"additionalProperties": false
}Compute aquarium heater wattage needed by tank volume and target temp. Use for aquarium setup. Inputs: tank L, current temp, target temp. Returns wattage W. See list_bundles for related 'animaux' calculators.
| Argument | Type | Description |
|---|---|---|
| room_temp_c* | number | Room temperature ยฐC |
| target_temp_c* | number | Target water temperature ยฐC |
| volume_liters* | number | Tank volume liters |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"volume_liters",
"room_temp_c",
"target_temp_c"
],
"properties": {
"room_temp_c": {
"type": "number",
"description": "Room temperature ยฐC"
},
"target_temp_c": {
"type": "number",
"description": "Target water temperature ยฐC"
},
"volume_liters": {
"type": "number",
"description": "Tank volume liters",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate great-circle distance between two coordinates. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| lat1* | number | Departure latitude |
| lat2* | number | Arrival latitude |
| lon1* | number | Departure longitude |
| lon2* | number | Arrival longitude |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"lat1",
"lon1",
"lat2",
"lon2"
],
"properties": {
"lat1": {
"type": "number",
"maximum": 90,
"minimum": -90,
"description": "Departure latitude"
},
"lat2": {
"type": "number",
"maximum": 90,
"minimum": -90,
"description": "Arrival latitude"
},
"lon1": {
"type": "number",
"maximum": 180,
"minimum": -180,
"description": "Departure longitude"
},
"lon2": {
"type": "number",
"maximum": 180,
"minimum": -180,
"description": "Arrival longitude"
}
},
"additionalProperties": false
}Calculate total floor area and Carrez habitable area from a list of rooms. Returns: {rooms, total_area_m2, carrez_area_m2, note}. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| rooms* | array | Rooms with length and width in meters |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"rooms"
],
"properties": {
"rooms": {
"type": "array",
"items": {
"type": "object",
"required": [
"length_m",
"width_m"
],
"properties": {
"width_m": {
"type": "number",
"minimum": 0
},
"length_m": {
"type": "number",
"minimum": 0
}
},
"additionalProperties": false
},
"minItems": 1,
"description": "Rooms with length and width in meters"
}
},
"additionalProperties": false
}Convert flow rate between L/s, L/min, L/h, mยณ/h, gpm, cfm. Use for plumbing, HVAC, or industrial design. Inputs: value, from-unit, to-unit. Returns converted flow rate. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| value* | number | Flow rate value |
| to_unit* | string | Target unit |
| from_unit* | string | Source unit |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from_unit",
"to_unit"
],
"properties": {
"value": {
"type": "number",
"description": "Flow rate value",
"exclusiveMinimum": 0
},
"to_unit": {
"enum": [
"l_min",
"l_h",
"m3_h",
"gpm",
"cfm"
],
"type": "string",
"description": "Target unit"
},
"from_unit": {
"enum": [
"l_min",
"l_h",
"m3_h",
"gpm",
"cfm"
],
"type": "string",
"description": "Source unit"
}
},
"additionalProperties": false
}Compute food cost per serving from ingredient costs. Use for restaurants, meal-prep services. Inputs: list of ingredients with cost and quantity used, servings. Returns cost per serving and total. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| servings* | integer | |
| ingredients* | array |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"ingredients",
"servings"
],
"properties": {
"servings": {
"type": "integer",
"exclusiveMinimum": 0
},
"ingredients": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"price",
"total_quantity",
"used_quantity"
],
"properties": {
"name": {
"type": "string"
},
"price": {
"type": "number",
"exclusiveMinimum": 0
},
"used_quantity": {
"type": "number",
"exclusiveMinimum": 0
},
"total_quantity": {
"type": "number",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}
}
},
"additionalProperties": false
}Compute force using Newton's second law F=mยทa. Use for physics problems. Inputs: mass kg, acceleration m/sยฒ. Returns force in newtons. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| force_n | number | Newtons |
| mass_kg | number | Mass kg |
| acceleration | number | m/sยฒ |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"force_n": {
"type": "number",
"description": "Newtons"
},
"mass_kg": {
"type": "number",
"description": "Mass kg"
},
"acceleration": {
"type": "number",
"description": "m/sยฒ"
}
},
"additionalProperties": false
}Perform fraction operations: add, subtract, multiply, divide, simplify. Returns: {input, result, decimal}. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| den1* | integer | Denominator 1 |
| den2 | integer | Denominator 2 |
| num1* | integer | Numerator 1 |
| num2 | integer | Numerator 2 |
| operation* | string | Operation |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"operation",
"num1",
"den1"
],
"properties": {
"den1": {
"type": "integer",
"minimum": 1,
"description": "Denominator 1"
},
"den2": {
"type": "integer",
"default": 1,
"minimum": 1,
"description": "Denominator 2"
},
"num1": {
"type": "integer",
"description": "Numerator 1"
},
"num2": {
"type": "integer",
"default": 0,
"description": "Numerator 2"
},
"operation": {
"enum": [
"add",
"subtract",
"multiply",
"divide",
"simplify"
],
"type": "string",
"description": "Operation"
}
},
"additionalProperties": false
}Add, subtract, multiply, or divide two fractions and return the simplified result. Use for math homework. Inputs: num1/den1, op, num2/den2. Returns result fraction (lowest terms). See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| den1* | integer | Denominator of first fraction |
| den2* | integer | Denominator of second fraction |
| num1* | integer | Numerator of first fraction |
| num2* | integer | Numerator of second fraction |
| operation* | string | Operation to perform |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"num1",
"den1",
"num2",
"den2",
"operation"
],
"properties": {
"den1": {
"type": "integer",
"description": "Denominator of first fraction"
},
"den2": {
"type": "integer",
"description": "Denominator of second fraction"
},
"num1": {
"type": "integer",
"description": "Numerator of first fraction"
},
"num2": {
"type": "integer",
"description": "Numerator of second fraction"
},
"operation": {
"enum": [
"add",
"subtract",
"multiply",
"divide"
],
"type": "string",
"description": "Operation to perform"
}
},
"additionalProperties": false
}Return maximum recommended freezer storage duration for a food type. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| food_type* | string |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"food_type"
],
"properties": {
"food_type": {
"enum": [
"raw_meat",
"cooked_meat",
"vegetables",
"bread",
"fish",
"dairy",
"fruit"
],
"type": "string"
}
},
"additionalProperties": false
}Estimate thawing time for frozen food by weight and method. Returns: {safe_temp_check, tip}. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| method* | string | Thawing method |
| weight_kg* | number | Food weight kg |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight_kg",
"method"
],
"properties": {
"method": {
"enum": [
"fridge",
"cold_water",
"microwave"
],
"type": "string",
"description": "Thawing method"
},
"weight_kg": {
"type": "number",
"description": "Food weight kg",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate French income tax (IR) 2026 on 2025 income per Article 197 CGI: progressive brackets with family quotient, family-quotient cap (1,807 EUR per extra half-share beyond 1 share single / 2 shares couple, 903.50 EUR per quarter share) and dรฉcote (897 EUR single / 1,483 EUR couple minus 45.25% of tax). Not implemented: the 4,262 EUR cap for single parents (parent isolรฉ) and the special 1,079 / 1,801 EUR cases of art. 197 I-2; DOM reductions. Returns: {income, family_quotient, tax_before_cap, qf_cap, tax_after_cap, decote, total_tax, effective_rate_pct, marginal_rate_pct, brackets}. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| parts | number | Number of fiscal shares (1=single, 2=married, +0.5 per child) |
| couple | boolean | true = joint taxation (married/PACS couple, base 2 shares); false = individual taxation (base 1 share) |
| income* | number | Annual net taxable income in euros |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"income"
],
"properties": {
"parts": {
"type": "number",
"default": 1,
"maximum": 20,
"minimum": 0.5,
"description": "Number of fiscal shares (1=single, 2=married, +0.5 per child)"
},
"couple": {
"type": "boolean",
"default": false,
"description": "true = joint taxation (married/PACS couple, base 2 shares); false = individual taxation (base 1 share)"
},
"income": {
"type": "number",
"minimum": 0,
"description": "Annual net taxable income in euros"
}
},
"additionalProperties": false
}Convert French gross salary to net salary for 2026 (cadre, non-cadre, or civil servant). Returns monthly/annual net, social contributions, employer cost. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| status | string | Employment status |
| gross_monthly* | number | Gross monthly salary in euros |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"gross_monthly"
],
"properties": {
"status": {
"enum": [
"cadre",
"non_cadre",
"fonction_publique"
],
"type": "string",
"default": "cadre",
"description": "Employment status"
},
"gross_monthly": {
"type": "number",
"minimum": 0,
"description": "Gross monthly salary in euros"
}
},
"additionalProperties": false
}Calculate French VAT (TVA) โ convert between HT (before tax) and TTC (after tax). Supports all 4 French VAT rates. Returns: {amount_ht, amount_ttc, vat_amount, vat_rate}. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| mode | string | Input mode: ht=before tax, ttc=after tax |
| rate | string | VAT rate percentage |
| amount* | number | Amount in euros |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"amount"
],
"properties": {
"mode": {
"enum": [
"ht",
"ttc"
],
"type": "string",
"default": "ht",
"description": "Input mode: ht=before tax, ttc=after tax"
},
"rate": {
"enum": [
"2.1",
"5.5",
"10",
"20"
],
"type": "string",
"default": "20",
"description": "VAT rate percentage"
},
"amount": {
"type": "number",
"minimum": 0,
"description": "Amount in euros"
}
},
"additionalProperties": false
}Calculate the frequency of a musical note based on equal temperament tuning. See list_bundles for related 'musique' calculators.
| Argument | Type | Description |
|---|---|---|
| note* | string | Note name in chromatic scale |
| octave* | number | Octave number (A4 = concert pitch reference) |
| tuning_reference | number | Tuning reference frequency in Hz (default A4=440Hz) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"note",
"octave"
],
"properties": {
"note": {
"enum": [
"C",
"C#",
"D",
"D#",
"E",
"F",
"F#",
"G",
"G#",
"A",
"A#",
"B"
],
"type": "string",
"description": "Note name in chromatic scale"
},
"octave": {
"type": "number",
"maximum": 8,
"minimum": 0,
"description": "Octave number (A4 = concert pitch reference)"
},
"tuning_reference": {
"type": "number",
"default": 440,
"maximum": 480,
"minimum": 400,
"description": "Tuning reference frequency in Hz (default A4=440Hz)"
}
},
"additionalProperties": false
}Calculate fuel consumption in L/100km and MPG from distance and fuel used. Returns: {l_100km, mpg_us, mpg_uk, co2_g_km_petrol}. See list_bundles for related 'auto-transport' calculators.
| Argument | Type | Description |
|---|---|---|
| distance_km* | number | Distance in km |
| fuel_liters* | number | Fuel consumed in liters |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"distance_km",
"fuel_liters"
],
"properties": {
"distance_km": {
"type": "number",
"minimum": 0.1,
"description": "Distance in km"
},
"fuel_liters": {
"type": "number",
"minimum": 0,
"description": "Fuel consumed in liters"
}
},
"additionalProperties": false
}Compute fuel cost for a journey. Use for trip budgeting or company expense. Inputs: distance km, consumption L/100km, fuel price โฌ/L. Returns total cost and L used. See list_bundles for related 'auto-transport' calculators.
| Argument | Type | Description |
|---|---|---|
| fuel_price* | number | Price/liter |
| consumption* | number | L/100km |
| distance_km* | number | Distance km |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"distance_km",
"consumption",
"fuel_price"
],
"properties": {
"fuel_price": {
"type": "number",
"minimum": 0,
"description": "Price/liter"
},
"consumption": {
"type": "number",
"minimum": 0.1,
"description": "L/100km"
},
"distance_km": {
"type": "number",
"minimum": 0,
"description": "Distance km"
}
},
"additionalProperties": false
}Convert between fuel economy units: L/100km, mpg-US, mpg-UK, km/L. Use for car comparisons across regions. Inputs: value, from-unit, to-unit. Returns converted economy. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| value* | number | Fuel economy value to convert |
| to_unit* | string | Target unit of fuel economy |
| from_unit* | string | Source unit of fuel economy |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from_unit",
"to_unit"
],
"properties": {
"value": {
"type": "number",
"minimum": 0.1,
"description": "Fuel economy value to convert"
},
"to_unit": {
"enum": [
"l_100km",
"mpg_us",
"mpg_uk",
"km_l"
],
"type": "string",
"description": "Target unit of fuel economy"
},
"from_unit": {
"enum": [
"l_100km",
"mpg_us",
"mpg_uk",
"km_l"
],
"type": "string",
"description": "Source unit of fuel economy"
}
},
"additionalProperties": false
}Compute the future value (FV) of a present sum at a given interest rate. Use for savings projections. Inputs: present value, annual rate %, years, compounding frequency. Returns FV and total interest. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| rate* | number | Annual rate percent |
| years* | number | Number of years |
| present_value* | number | Present value EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"present_value",
"rate",
"years"
],
"properties": {
"rate": {
"type": "number",
"minimum": 0,
"description": "Annual rate percent"
},
"years": {
"type": "number",
"description": "Number of years",
"exclusiveMinimum": 0
},
"present_value": {
"type": "number",
"description": "Present value EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute soil volume (mยณ) and number of bags needed for a garden bed. Use for gardening. Inputs: area, depth, bag volume. Returns mยณ and bag count. See list_bundles for related 'vie-quotidienne' calculators.
| Argument | Type | Description |
|---|---|---|
| width_m* | number | Width m |
| depth_cm* | number | Depth cm |
| length_m* | number | Length m |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"length_m",
"width_m",
"depth_cm"
],
"properties": {
"width_m": {
"type": "number",
"minimum": 0.1,
"description": "Width m"
},
"depth_cm": {
"type": "number",
"minimum": 1,
"description": "Depth cm"
},
"length_m": {
"type": "number",
"minimum": 0.1,
"description": "Length m"
}
},
"additionalProperties": false
}Estimate effective daily sunlight hours for a garden based on latitude, month and orientation. See list_bundles for related 'jardinage' calculators.
| Argument | Type | Description |
|---|---|---|
| month* | number | Month number (1=January, 12=December) |
| latitude* | number | Latitude in degrees (-90 to 90) |
| orientation* | string | Garden orientation / aspect |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"latitude",
"month",
"orientation"
],
"properties": {
"month": {
"type": "number",
"maximum": 12,
"minimum": 1,
"description": "Month number (1=January, 12=December)"
},
"latitude": {
"type": "number",
"maximum": 90,
"minimum": -90,
"description": "Latitude in degrees (-90 to 90)"
},
"orientation": {
"enum": [
"south",
"east",
"west",
"north"
],
"type": "string",
"description": "Garden orientation / aspect"
}
},
"additionalProperties": false
}Compute weekly water needs for a garden by area and plant type. Use for irrigation planning. Inputs: garden mยฒ, climate, plant mix. Returns L/week and watering frequency. See list_bundles for related 'jardinage' calculators.
| Argument | Type | Description |
|---|---|---|
| season* | string | Current season |
| plant_type* | string | Type of plants in the garden |
| surface_m2* | number | Garden surface area in square meters |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"surface_m2",
"plant_type",
"season"
],
"properties": {
"season": {
"enum": [
"spring",
"summer",
"autumn",
"winter"
],
"type": "string",
"description": "Current season"
},
"plant_type": {
"enum": [
"lawn",
"vegetables",
"flowers",
"trees",
"shrubs"
],
"type": "string",
"description": "Type of plants in the garden"
},
"surface_m2": {
"type": "number",
"minimum": 0,
"description": "Garden surface area in square meters"
}
},
"additionalProperties": false
}Calculate Ethereum transaction gas fee in ETH and USD. See list_bundles for related 'crypto' calculators.
| Argument | Type | Description |
|---|---|---|
| gas_limit | number | Gas limit for the transaction (default 21000 for simple transfer) |
| eth_price_usd | number | Current ETH price in USD (default 3000) |
| gas_price_gwei* | number | Gas price in Gwei |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"gas_price_gwei"
],
"properties": {
"gas_limit": {
"type": "number",
"default": 21000,
"minimum": 21000,
"description": "Gas limit for the transaction (default 21000 for simple transfer)"
},
"eth_price_usd": {
"type": "number",
"default": 3000,
"minimum": 0,
"description": "Current ETH price in USD (default 3000)"
},
"gas_price_gwei": {
"type": "number",
"minimum": 0,
"description": "Gas price in Gwei"
}
},
"additionalProperties": false
}Calculate GCD (PGCD) and LCM (PPCM) of two integers using Euclidean algorithm. Returns: {gcd, lcm}. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| a* | integer | First integer |
| b* | integer | Second integer |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"a",
"b"
],
"properties": {
"a": {
"type": "integer",
"description": "First integer"
},
"b": {
"type": "integer",
"description": "Second integer"
}
},
"additionalProperties": false
}Compute gear ratio and torque/speed multiplication. Use for mechanical engineering, cycling, automotive. Inputs: driver teeth, driven teeth. Returns ratio and torque multiplier. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| driven_teeth* | number | Driven gear teeth |
| driving_teeth* | number | Driving gear teeth |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"driving_teeth",
"driven_teeth"
],
"properties": {
"driven_teeth": {
"type": "number",
"minimum": 1,
"description": "Driven gear teeth"
},
"driving_teeth": {
"type": "number",
"minimum": 1,
"description": "Driving gear teeth"
}
},
"additionalProperties": false
}Calculate glycemic load (GL) per food and total for a meal. Returns: {thresholds}. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| foods* | array |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"foods"
],
"properties": {
"foods": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"gi",
"carbs_g",
"portion_g"
],
"properties": {
"gi": {
"type": "number",
"maximum": 100,
"minimum": 0
},
"name": {
"type": "string"
},
"carbs_g": {
"type": "number",
"minimum": 0
},
"portion_g": {
"type": "number",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}
}
},
"additionalProperties": false
}Convert French school grades (out of 20) to GPA and academic mention. See list_bundles for related 'education' calculators.
| Argument | Type | Description |
|---|---|---|
| note_1* | number | Grade 1 out of 20 |
| note_2* | number | Grade 2 out of 20 |
| note_3 | number | Grade 3 out of 20 (optional) |
| note_4 | number | Grade 4 out of 20 (optional) |
| note_5 | number | Grade 5 out of 20 (optional) |
| coeff_1 | number | Coefficient for grade 1 |
| coeff_2 | number | Coefficient for grade 2 |
| coeff_3 | number | Coefficient for grade 3 (0 if unused) |
| coeff_4 | number | Coefficient for grade 4 (0 if unused) |
| coeff_5 | number | Coefficient for grade 5 (0 if unused) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"note_1",
"note_2"
],
"properties": {
"note_1": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "Grade 1 out of 20"
},
"note_2": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "Grade 2 out of 20"
},
"note_3": {
"type": "number",
"default": 0,
"maximum": 20,
"minimum": 0,
"description": "Grade 3 out of 20 (optional)"
},
"note_4": {
"type": "number",
"default": 0,
"maximum": 20,
"minimum": 0,
"description": "Grade 4 out of 20 (optional)"
},
"note_5": {
"type": "number",
"default": 0,
"maximum": 20,
"minimum": 0,
"description": "Grade 5 out of 20 (optional)"
},
"coeff_1": {
"type": "number",
"default": 1,
"minimum": 0,
"description": "Coefficient for grade 1"
},
"coeff_2": {
"type": "number",
"default": 1,
"minimum": 0,
"description": "Coefficient for grade 2"
},
"coeff_3": {
"type": "number",
"default": 1,
"minimum": 0,
"description": "Coefficient for grade 3 (0 if unused)"
},
"coeff_4": {
"type": "number",
"default": 1,
"minimum": 0,
"description": "Coefficient for grade 4 (0 if unused)"
},
"coeff_5": {
"type": "number",
"default": 1,
"minimum": 0,
"description": "Coefficient for grade 5 (0 if unused)"
}
},
"additionalProperties": false
}Compute simple or weighted grade average. Use for school report cards. Inputs: grades list, optional weights/coefficients. Returns weighted average and missing-grade-needed forecast. See list_bundles for related 'education' calculators.
| Argument | Type | Description |
|---|---|---|
| grades* | array | Array of grades |
| coefficients | array | Optional array of coefficients/weights |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"grades"
],
"properties": {
"grades": {
"type": "array",
"items": {
"type": "number"
},
"minItems": 1,
"description": "Array of grades"
},
"coefficients": {
"type": "array",
"items": {
"type": "number"
},
"description": "Optional array of coefficients/weights"
}
},
"additionalProperties": false
}Calculate the grade needed on remaining exams to reach target average. Returns: {error}. See list_bundles for related 'education' calculators.
| Argument | Type | Description |
|---|---|---|
| exams_done* | integer | Number of exams completed |
| exams_total* | integer | Total number of exams |
| target_average* | number | Target final average |
| current_average* | number | Current average out of 20 |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"current_average",
"target_average",
"exams_done",
"exams_total"
],
"properties": {
"exams_done": {
"type": "integer",
"description": "Number of exams completed",
"exclusiveMinimum": 0
},
"exams_total": {
"type": "integer",
"description": "Total number of exams",
"exclusiveMinimum": 0
},
"target_average": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "Target final average"
},
"current_average": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "Current average out of 20"
}
},
"additionalProperties": false
}Compute gravel volume (mยณ) and weight (tonnes) for a surface and depth. Use for paths, foundations, drainage. Inputs: area, depth, gravel density. Returns volume and weight. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| width_m* | number | Width m |
| depth_cm* | number | Depth cm |
| length_m* | number | Length m |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"length_m",
"width_m",
"depth_cm"
],
"properties": {
"width_m": {
"type": "number",
"minimum": 0.1,
"description": "Width m"
},
"depth_cm": {
"type": "number",
"minimum": 1,
"description": "Depth cm"
},
"length_m": {
"type": "number",
"minimum": 0.1,
"description": "Length m"
}
},
"additionalProperties": false
}Compare unit prices of grocery items โ normalizes gโkg, mL/cLโL. Returns: {best_value, savings_vs_priciest}. See list_bundles for related 'vie-quotidienne' calculators.
| Argument | Type | Description |
|---|---|---|
| items* | array | Items: name, price, quantity, unit (kg/g/L/mL/cl/unit) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"items"
],
"properties": {
"items": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"price",
"quantity",
"unit"
],
"properties": {
"name": {
"type": "string"
},
"unit": {
"type": "string"
},
"price": {
"type": "number",
"minimum": 0
},
"quantity": {
"type": "number",
"minimum": 0.001
}
},
"additionalProperties": false
},
"minItems": 2,
"description": "Items: name, price, quantity, unit (kg/g/L/mL/cl/unit)"
}
},
"additionalProperties": false
}Estimate harvest date for vegetables based on sowing date and region. Returns: {harvest_date, days_to_harvest}. See list_bundles for related 'jardinage' calculators.
| Argument | Type | Description |
|---|---|---|
| region* | string | Growing region: north (+10 days), south (-10 days), mediterranean (-15 days) |
| plant_type* | string | Type of vegetable |
| sowing_date* | string | Sowing date in ISO format (YYYY-MM-DD) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"plant_type",
"sowing_date",
"region"
],
"properties": {
"region": {
"enum": [
"north",
"central",
"south",
"mediterranean"
],
"type": "string",
"description": "Growing region: north (+10 days), south (-10 days), mediterranean (-15 days)"
},
"plant_type": {
"enum": [
"tomato",
"lettuce",
"carrot",
"potato",
"zucchini",
"bean",
"pepper",
"cucumber"
],
"type": "string",
"description": "Type of vegetable"
},
"sowing_date": {
"type": "string",
"description": "Sowing date in ISO format (YYYY-MM-DD)"
}
},
"additionalProperties": false
}Calculate hat size in FR/EU, US/UK systems and standard S/M/L/XL from head circumference (cm). Returns: {head_circumference_cm, FR_EU, US_UK, standard_size}. See list_bundles for related 'textile-mode' calculators.
| Argument | Type | Description |
|---|---|---|
| head_circumference_cm* | number |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"head_circumference_cm"
],
"properties": {
"head_circumference_cm": {
"type": "number",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate heart rate training zones Z1-Z5, optionally using Karvonen method. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| max_hr* | number | Maximum heart rate in bpm |
| resting_hr | number | Resting heart rate for Karvonen method (bpm) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"max_hr"
],
"properties": {
"max_hr": {
"type": "number",
"maximum": 250,
"minimum": 60,
"description": "Maximum heart rate in bpm"
},
"resting_hr": {
"type": "number",
"maximum": 120,
"minimum": 30,
"description": "Resting heart rate for Karvonen method (bpm)"
}
},
"additionalProperties": false
}Calculate the apparent temperature (heat index) from temperature and humidity. Returns: {heat_index_c, feels_warmer_by_degrees, risk_level}. See list_bundles for related 'astronomie-nature' calculators.
| Argument | Type | Description |
|---|---|---|
| humidity_pct* | number | Relative humidity in percent |
| temperature_c* | number | Air temperature in degrees C |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"temperature_c",
"humidity_pct"
],
"properties": {
"humidity_pct": {
"type": "number",
"maximum": 100,
"minimum": 0,
"description": "Relative humidity in percent"
},
"temperature_c": {
"type": "number",
"description": "Air temperature in degrees C"
}
},
"additionalProperties": false
}Compute heat pump Coefficient of Performance (COP). Use for HVAC efficiency analysis. Inputs: heat output kW, electric input kW. Returns COP and seasonal SCOP estimate. See list_bundles for related 'energie' calculators.
| Argument | Type | Description |
|---|---|---|
| indoor_temp | number | Indoor target ยฐC |
| outdoor_temp* | number | Outdoor temperature ยฐC |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"outdoor_temp"
],
"properties": {
"indoor_temp": {
"type": "number",
"default": 20,
"description": "Indoor target ยฐC"
},
"outdoor_temp": {
"type": "number",
"description": "Outdoor temperature ยฐC"
}
},
"additionalProperties": false
}Estimate horse weight using Carroll formula from heart girth and body length. Use for vets, feed dosing. Inputs: heart girth cm, body length cm. Returns weight kg. See list_bundles for related 'animaux' calculators.
| Argument | Type | Description |
|---|---|---|
| body_length_cm* | number | Body length cm |
| heart_girth_cm* | number | Heart girth circumference cm |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"heart_girth_cm",
"body_length_cm"
],
"properties": {
"body_length_cm": {
"type": "number",
"description": "Body length cm",
"exclusiveMinimum": 0
},
"heart_girth_cm": {
"type": "number",
"description": "Heart girth circumference cm",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute fully-loaded hourly cost-to-company. Use for project pricing or freelance rate. Inputs: monthly salary, social charges %, billable hours/month. Returns true hourly cost. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| work_days | number | Working days/year |
| charges_pct | number | Employer charges % |
| annual_gross* | number | Annual gross salary EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"annual_gross"
],
"properties": {
"work_days": {
"type": "number",
"default": 218,
"description": "Working days/year"
},
"charges_pct": {
"type": "number",
"default": 45,
"description": "Employer charges %"
},
"annual_gross": {
"type": "number",
"minimum": 0,
"description": "Annual gross salary EUR"
}
},
"additionalProperties": false
}Estimate French housing aid (APL โ Aide Personnalisee au Logement). Returns: {rent, rent_ceiling, estimated_apl, note}.
| Argument | Type | Description |
|---|---|---|
| rent* | number | Monthly rent in euros |
| city_zone | string | City zone: 1 (Paris/IDF), 2 (large cities), 3 (rural) |
| household_size | integer | Number of people in household (1-6) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"rent"
],
"properties": {
"rent": {
"type": "number",
"minimum": 0,
"description": "Monthly rent in euros"
},
"city_zone": {
"enum": [
"1",
"2",
"3"
],
"type": "string",
"default": "2",
"description": "City zone: 1 (Paris/IDF), 2 (large cities), 3 (rural)"
},
"household_size": {
"type": "integer",
"default": 1,
"maximum": 6,
"minimum": 1,
"description": "Number of people in household (1-6)"
}
},
"additionalProperties": false
}Compare multiple mortgage offers sorted by total cost. Returns: {offers_count, best_offer, comparison}. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| offers* | array | List of mortgage offers to compare |
| loan_amount* | number | Loan amount in EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"loan_amount",
"offers"
],
"properties": {
"offers": {
"type": "array",
"items": {
"type": "object",
"required": [
"bank_name",
"rate",
"duration_years",
"insurance_rate"
],
"properties": {
"rate": {
"type": "number",
"minimum": 0,
"description": "Annual interest rate in %"
},
"bank_name": {
"type": "string",
"description": "Bank or lender name"
},
"duration_years": {
"type": "number",
"description": "Loan duration in years",
"exclusiveMinimum": 0
},
"insurance_rate": {
"type": "number",
"minimum": 0,
"description": "Annual insurance rate in % of initial loan"
}
},
"additionalProperties": false
},
"minItems": 1,
"description": "List of mortgage offers to compare"
},
"loan_amount": {
"type": "number",
"description": "Loan amount in EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute recommended daily fluid intake by weight, activity, and weather. Use for athletes and outdoor workers. Inputs: weight kg, activity hours, temperature ยฐC. Returns L/day and electrolyte recommendation. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| climate | string | Climate/environment |
| weight_kg* | number | Body weight in kilograms |
| activity_minutes | number | Daily exercise duration in minutes |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight_kg"
],
"properties": {
"climate": {
"enum": [
"temperate",
"hot",
"cold"
],
"type": "string",
"default": "temperate",
"description": "Climate/environment"
},
"weight_kg": {
"type": "number",
"minimum": 1,
"description": "Body weight in kilograms"
},
"activity_minutes": {
"type": "number",
"default": 0,
"minimum": 0,
"description": "Daily exercise duration in minutes"
}
},
"additionalProperties": false
}Compute hydraulic system pressure P=F/A. Use for hydraulic design. Inputs: force N, area mยฒ. Returns pressure in Pa, kPa, bar, psi. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| force_n* | number | Force N |
| area_cm2* | number | Piston area cmยฒ |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"force_n",
"area_cm2"
],
"properties": {
"force_n": {
"type": "number",
"minimum": 0,
"description": "Force N"
},
"area_cm2": {
"type": "number",
"minimum": 0.01,
"description": "Piston area cmยฒ"
}
},
"additionalProperties": false
}Calculate hyperfocal distance and near/far sharp limits for a lens and aperture. See list_bundles for related 'photographie' calculators.
| Argument | Type | Description |
|---|---|---|
| coc_mm | number | Circle of confusion in mm (default 0.03 for full frame) |
| aperture* | number | Aperture f-number |
| focal_length_mm* | number | Lens focal length in millimeters |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"focal_length_mm",
"aperture"
],
"properties": {
"coc_mm": {
"type": "number",
"default": 0.03,
"minimum": 0.005,
"description": "Circle of confusion in mm (default 0.03 for full frame)"
},
"aperture": {
"type": "number",
"minimum": 0.7,
"description": "Aperture f-number"
},
"focal_length_mm": {
"type": "number",
"minimum": 1,
"description": "Lens focal length in millimeters"
}
},
"additionalProperties": false
}Solve PV=nRT. Provide any 3 of: pressure_pa, volume_m3, moles, temperature_k. R=8.314. Returns: {error}. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| moles | number | Amount in mol |
| volume_m3 | number | Volume in mยณ |
| pressure_pa | number | Pressure in Pa |
| temperature_k | number | Temperature in K |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"moles": {
"type": "number",
"description": "Amount in mol"
},
"volume_m3": {
"type": "number",
"description": "Volume in mยณ"
},
"pressure_pa": {
"type": "number",
"description": "Pressure in Pa"
},
"temperature_k": {
"type": "number",
"description": "Temperature in K"
}
},
"additionalProperties": false
}Estimate ideal body weight using Lorentz and Devine formulas. Returns: {lorentz_kg, devine_kg, average_kg}. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| sex* | string | Biological sex |
| height_cm* | number | Height in centimeters |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"height_cm",
"sex"
],
"properties": {
"sex": {
"enum": [
"male",
"female"
],
"type": "string",
"description": "Biological sex"
},
"height_cm": {
"type": "number",
"minimum": 100,
"description": "Height in centimeters"
}
},
"additionalProperties": false
}Compute healthy weight range based on BMI 18.5-24.9. Use for nutrition planning. Inputs: height cm. Returns ideal weight range (min, max) in kg and lb. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| sex* | string | Biological sex |
| frame* | string | Body frame size |
| height_cm* | number | Height in cm |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"height_cm",
"sex",
"frame"
],
"properties": {
"sex": {
"enum": [
"male",
"female"
],
"type": "string",
"description": "Biological sex"
},
"frame": {
"enum": [
"small",
"medium",
"large"
],
"type": "string",
"description": "Body frame size"
},
"height_cm": {
"type": "number",
"maximum": 250,
"minimum": 100,
"description": "Height in cm"
}
},
"additionalProperties": false
}Calculate impermanent loss for a DeFi liquidity pool position when price ratio changes. Returns: {value_in_pool_ratio}. See list_bundles for related 'crypto' calculators.
| Argument | Type | Description |
|---|---|---|
| price_ratio_change* | number | Price ratio change multiplier (e.g. 2.0 if token doubled in price, 0.5 if halved) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"price_ratio_change"
],
"properties": {
"price_ratio_change": {
"type": "number",
"minimum": 0.01,
"description": "Price ratio change multiplier (e.g. 2.0 if token doubled in price, 0.5 if halved)"
}
},
"additionalProperties": false
}Compute real (inflation-adjusted) purchasing power of a future amount. Use for retirement or savings goal in today's euros. Inputs: nominal future amount, years, average inflation %. Returns real value. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| years* | number | Number of years |
| amount* | number | Amount in EUR |
| inflation_rate* | number | Annual inflation rate percent |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"amount",
"years",
"inflation_rate"
],
"properties": {
"years": {
"type": "number",
"description": "Number of years",
"exclusiveMinimum": 0
},
"amount": {
"type": "number",
"description": "Amount in EUR",
"exclusiveMinimum": 0
},
"inflation_rate": {
"type": "number",
"minimum": 0,
"description": "Annual inflation rate percent"
}
},
"additionalProperties": false
}Adjust a nominal amount to a target year using a constant inflation rate. Use for real-value comparisons across time. Inputs: amount, inflation rate %, years. Returns adjusted value and total inflation factor. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| years* | number | Number of years |
| amount* | number | Original amount |
| inflation_rate* | number | Annual inflation rate in % |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"amount",
"inflation_rate",
"years"
],
"properties": {
"years": {
"type": "number",
"minimum": 0,
"description": "Number of years"
},
"amount": {
"type": "number",
"minimum": 0,
"description": "Original amount"
},
"inflation_rate": {
"type": "number",
"description": "Annual inflation rate in %"
}
},
"additionalProperties": false
}Calculate French inheritance tax (droits de succession) based on relationship and amount. Returns: {amount, abatement, taxable_base, tax_due, effective_rate_pct, marginal_rate_pct}. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| amount* | number | Inherited amount in euros |
| relationship* | string | Relationship to deceased: spouse, child, sibling, other |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"amount",
"relationship"
],
"properties": {
"amount": {
"type": "number",
"minimum": 0,
"description": "Inherited amount in euros"
},
"relationship": {
"enum": [
"spouse",
"child",
"sibling",
"other"
],
"type": "string",
"description": "Relationship to deceased: spouse, child, sibling, other"
}
},
"additionalProperties": false
}Compute thermal resistance R = thickness/lambda. Use for insulation specification (RT2020/RE2020). Inputs: thickness m, conductivity ฮป W/mยทK. Returns R-value mยฒยทK/W. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| lambda* | number | Conductivity W/(m.K) |
| thickness_mm* | number | Thickness mm |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"thickness_mm",
"lambda"
],
"properties": {
"lambda": {
"type": "number",
"minimum": 0.01,
"description": "Conductivity W/(m.K)"
},
"thickness_mm": {
"type": "number",
"minimum": 1,
"description": "Thickness mm"
}
},
"additionalProperties": false
}Calculate thermal R-value: R = thickness/lambda. Compare with RE2020 targets. Returns: {lambda_w_mk, r_value_m2KW, re2020_targets, walls_ok, roof_ok, floor_ok}. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| lambda* | number | Conductivity W/(mยทK) โ mineral wool ~0.035, polyurethane ~0.025 |
| thickness_mm* | number | Insulation thickness in mm |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"thickness_mm",
"lambda"
],
"properties": {
"lambda": {
"type": "number",
"minimum": 0.01,
"description": "Conductivity W/(mยทK) โ mineral wool ~0.035, polyurethane ~0.025"
},
"thickness_mm": {
"type": "number",
"minimum": 1,
"description": "Insulation thickness in mm"
}
},
"additionalProperties": false
}Estimate annual car insurance from vehicle value, driver age and bonus-malus. Returns: {annual_premium_eur, monthly_eur, note}. See list_bundles for related 'auto-transport' calculators.
| Argument | Type | Description |
|---|---|---|
| driver_age* | number | Driver age |
| vehicle_value* | number | Vehicle value EUR |
| bonus_malus_coefficient | number | Bonus-malus (0.5=best, 3.5=worst) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"vehicle_value",
"driver_age"
],
"properties": {
"driver_age": {
"type": "number",
"maximum": 100,
"minimum": 16,
"description": "Driver age"
},
"vehicle_value": {
"type": "number",
"minimum": 0,
"description": "Vehicle value EUR"
},
"bonus_malus_coefficient": {
"type": "number",
"default": 1,
"maximum": 3.5,
"minimum": 0.5,
"description": "Bonus-malus (0.5=best, 3.5=worst)"
}
},
"additionalProperties": false
}Estimate international shipping cost and delivery time by carrier and weight. Use for e-commerce or expat shipping. Inputs: from-country, to-country, weight kg, dimensions. Returns cost range and lead time. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| from_zone* | string | Destination zone |
| weight_kg* | number | Actual parcel weight in kg |
| dimensions_cm* | object | Parcel dimensions in cm (length, width, height) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight_kg",
"dimensions_cm",
"from_zone"
],
"properties": {
"from_zone": {
"enum": [
"domestic",
"europe",
"americas",
"asia",
"oceania"
],
"type": "string",
"description": "Destination zone"
},
"weight_kg": {
"type": "number",
"minimum": 0.1,
"description": "Actual parcel weight in kg"
},
"dimensions_cm": {
"type": "object",
"required": [
"l",
"w",
"h"
],
"properties": {
"h": {
"type": "number",
"minimum": 1
},
"l": {
"type": "number",
"minimum": 1
},
"w": {
"type": "number",
"minimum": 1
}
},
"description": "Parcel dimensions in cm (length, width, height)",
"additionalProperties": false
}
},
"additionalProperties": false
}Compute Economic Order Quantity (Wilson formula). Use for supply chain optimization. Inputs: annual demand, order cost, holding cost per unit. Returns EOQ and orders/year. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| order_cost* | number | Cost per order |
| holding_cost* | number | Annual holding cost per unit |
| annual_demand* | number | Annual demand units |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"annual_demand",
"order_cost",
"holding_cost"
],
"properties": {
"order_cost": {
"type": "number",
"minimum": 0,
"description": "Cost per order"
},
"holding_cost": {
"type": "number",
"minimum": 0,
"description": "Annual holding cost per unit"
},
"annual_demand": {
"type": "number",
"minimum": 0,
"description": "Annual demand units"
}
},
"additionalProperties": false
}Compute inventory turnover ratio = COGS / avg inventory. Use for retail efficiency analysis. Inputs: COGS, average inventory value. Returns turnover and days-on-hand. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| cogs* | number | Cost of goods sold |
| avg_inventory* | number | Average inventory value |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"cogs",
"avg_inventory"
],
"properties": {
"cogs": {
"type": "number",
"minimum": 0,
"description": "Cost of goods sold"
},
"avg_inventory": {
"type": "number",
"minimum": 0.01,
"description": "Average inventory value"
}
},
"additionalProperties": false
}Estimate jet lag recovery time based on timezone difference and direction of travel. Returns: {direction, tips}. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| timezone_diff_hours* | number | Timezone difference in hours (positive = eastward, negative = westward) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"timezone_diff_hours"
],
"properties": {
"timezone_diff_hours": {
"type": "number",
"maximum": 14,
"minimum": -12,
"description": "Timezone difference in hours (positive = eastward, negative = westward)"
}
},
"additionalProperties": false
}Compute kinetic energy KE=ยฝยทmยทvยฒ. Use for physics, vehicle safety analysis. Inputs: mass kg, velocity m/s. Returns kinetic energy in joules. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| mass_kg* | number | Mass in kg |
| velocity_ms* | number | Velocity in m/s |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"mass_kg",
"velocity_ms"
],
"properties": {
"mass_kg": {
"type": "number",
"minimum": 0,
"description": "Mass in kg"
},
"velocity_ms": {
"type": "number",
"description": "Velocity in m/s"
}
},
"additionalProperties": false
}Calculate yarn needed for a knitting project (meters and number of 50g/100m balls). Returns: {meters_of_yarn, balls_50g_100m}. See list_bundles for related 'textile-mode' calculators.
| Argument | Type | Description |
|---|---|---|
| size* | string | |
| project* | string |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"project",
"size"
],
"properties": {
"size": {
"enum": [
"S",
"M",
"L"
],
"type": "string"
},
"project": {
"enum": [
"scarf",
"hat",
"sweater",
"blanket",
"socks"
],
"type": "string"
}
},
"additionalProperties": false
}Calculate weekly and annual laundry cost (electricity + water + detergent). Returns: {per_load_eur, weekly_eur, annual_eur}. See list_bundles for related 'vie-quotidienne' calculators.
| Argument | Type | Description |
|---|---|---|
| loads_per_week* | number | Loads per week |
| water_liters_per_load | number | Liters per load (default 50) |
| detergent_cost_per_load | number | Detergent EUR/load (default 0.30) |
| electricity_kwh_per_load | number | kWh per load (default 1.2) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"loads_per_week"
],
"properties": {
"loads_per_week": {
"type": "number",
"minimum": 0,
"description": "Loads per week"
},
"water_liters_per_load": {
"type": "number",
"default": 50,
"minimum": 0,
"description": "Liters per load (default 50)"
},
"detergent_cost_per_load": {
"type": "number",
"default": 0.3,
"minimum": 0,
"description": "Detergent EUR/load (default 0.30)"
},
"electricity_kwh_per_load": {
"type": "number",
"default": 1.2,
"minimum": 0,
"description": "kWh per load (default 1.2)"
}
},
"additionalProperties": false
}Calculate recommended lawn mowing interval based on grass type, season and rainfall. See list_bundles for related 'jardinage' calculators.
| Argument | Type | Description |
|---|---|---|
| season* | string | Current season |
| grass_type* | string | Type of grass: cool_season (fescue/rye), warm_season (bermuda/zoysia), or mixed |
| weekly_rainfall_mm | number | Average weekly rainfall in mm (default 25mm) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"grass_type",
"season"
],
"properties": {
"season": {
"enum": [
"spring",
"summer",
"autumn",
"winter"
],
"type": "string",
"description": "Current season"
},
"grass_type": {
"enum": [
"cool_season",
"warm_season",
"mixed"
],
"type": "string",
"description": "Type of grass: cool_season (fescue/rye), warm_season (bermuda/zoysia), or mixed"
},
"weekly_rainfall_mm": {
"type": "number",
"default": 25,
"minimum": 0,
"description": "Average weekly rainfall in mm (default 25mm)"
}
},
"additionalProperties": false
}Compute grass seed quantity (kg) for a lawn area at recommended seeding rate. Use for landscaping. Inputs: area mยฒ, seed rate g/mยฒ. Returns seed kg. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| area_m2* | number | Lawn area mยฒ |
| rate_g_m2 | number | Seeding rate g/mยฒ |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"area_m2"
],
"properties": {
"area_m2": {
"type": "number",
"minimum": 0,
"description": "Lawn area mยฒ"
},
"rate_g_m2": {
"type": "number",
"default": 30,
"description": "Seeding rate g/mยฒ"
}
},
"additionalProperties": false
}Calculate French paid leave (congรฉs payรฉs): 2.5 days/month, max 25 working days/year. Returns: {accrual_per_month, accrued_days, capped_at_max, max_annual_days, days_to_max, months_to_max}. See list_bundles for related 'temps-rh' calculators.
| Argument | Type | Description |
|---|---|---|
| start_date* | string | YYYY-MM-DD โ Employment start date |
| months_worked* | number | Months worked in the reference period (1-12) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"start_date",
"months_worked"
],
"properties": {
"start_date": {
"type": "string",
"description": "YYYY-MM-DD โ Employment start date"
},
"months_worked": {
"type": "number",
"maximum": 12,
"minimum": 1,
"description": "Months worked in the reference period (1-12)"
}
},
"additionalProperties": false
}Compute energy and money saved by switching from incandescent/halogen to LED. Use for energy audit. Inputs: old wattage, LED wattage, daily hours, kWh price, bulbs. Returns yearly savings. See list_bundles for related 'energie' calculators.
| Argument | Type | Description |
|---|---|---|
| led_w* | number | LED replacement wattage |
| old_w* | number | Old bulb wattage |
| hours_day | number | Hours per day |
| num_bulbs | number | Number of bulbs |
| price_kwh | number | EUR/kWh |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"old_w",
"led_w"
],
"properties": {
"led_w": {
"type": "number",
"minimum": 0,
"description": "LED replacement wattage"
},
"old_w": {
"type": "number",
"minimum": 0,
"description": "Old bulb wattage"
},
"hours_day": {
"type": "number",
"default": 5,
"description": "Hours per day"
},
"num_bulbs": {
"type": "number",
"default": 1,
"minimum": 1,
"description": "Number of bulbs"
},
"price_kwh": {
"type": "number",
"default": 0.25,
"description": "EUR/kWh"
}
},
"additionalProperties": false
}Calculate numerology life path number from birth date. Returns: {life_path_number, meaning}. See list_bundles for related 'fun' calculators.
| Argument | Type | Description |
|---|---|---|
| birth_date* | string | Birth date in YYYY-MM-DD format |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"birth_date"
],
"properties": {
"birth_date": {
"type": "string",
"description": "Birth date in YYYY-MM-DD format"
}
},
"additionalProperties": false
}Convert between light-years and km/miles. Use for astronomy. 1 ly = 9.461ร10ยนยฒ km. Inputs: value, from, to. Returns converted distance. See list_bundles for related 'astronomie-nature' calculators.
| Argument | Type | Description |
|---|---|---|
| unit* | string | Input unit |
| value* | number | Value |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"unit"
],
"properties": {
"unit": {
"enum": [
"ly",
"parsec",
"au",
"km"
],
"type": "string",
"description": "Input unit"
},
"value": {
"type": "number",
"minimum": 0,
"description": "Value"
}
},
"additionalProperties": false
}Convert astronomical distances between light-years, parsecs, AU, km. Returns: {light_years, parsecs, au, km, original}. See list_bundles for related 'astronomie-nature' calculators.
| Argument | Type | Description |
|---|---|---|
| value* | number | Distance value |
| from_unit* | string | Source unit |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from_unit"
],
"properties": {
"value": {
"type": "number",
"description": "Distance value",
"exclusiveMinimum": 0
},
"from_unit": {
"enum": [
"ly",
"parsec",
"au",
"km"
],
"type": "string",
"description": "Source unit"
}
},
"additionalProperties": false
}Calculate linear regression slope and intercept from summary statistics. Returns: {error}. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| n* | integer | Number of data points |
| sum_x2* | number | Sum of (xi-x_mean)ยฒ |
| sum_xy* | number | Sum of (xi-x_mean)*(yi-y_mean) |
| x_mean* | number | Mean of x values |
| y_mean* | number | Mean of y values |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"x_mean",
"y_mean",
"sum_xy",
"sum_x2",
"n"
],
"properties": {
"n": {
"type": "integer",
"description": "Number of data points",
"exclusiveMinimum": 0
},
"sum_x2": {
"type": "number",
"description": "Sum of (xi-x_mean)ยฒ"
},
"sum_xy": {
"type": "number",
"description": "Sum of (xi-x_mean)*(yi-y_mean)"
},
"x_mean": {
"type": "number",
"description": "Mean of x values"
},
"y_mean": {
"type": "number",
"description": "Mean of y values"
}
},
"additionalProperties": false
}Calculate LMNP rental property amortization and annual tax deduction (French tax regime). See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| annual_rent* | number | Annual gross rental income in EUR |
| property_value* | number | Property purchase price excluding land in EUR |
| furniture_value* | number | Furniture and equipment value in EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"property_value",
"furniture_value",
"annual_rent"
],
"properties": {
"annual_rent": {
"type": "number",
"minimum": 0,
"description": "Annual gross rental income in EUR"
},
"property_value": {
"type": "number",
"minimum": 0,
"description": "Property purchase price excluding land in EUR"
},
"furniture_value": {
"type": "number",
"minimum": 0,
"description": "Furniture and equipment value in EUR"
}
},
"additionalProperties": false
}Calculate LMNP (non-professional furnished rental) tax deficit. Returns: {total_deductible, deficit, note}. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| annual_rent* | number | Annual rental income in EUR |
| annual_charges* | number | Annual deductible charges in EUR |
| depreciation_annual* | number | Annual depreciation amount in EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"annual_rent",
"annual_charges",
"depreciation_annual"
],
"properties": {
"annual_rent": {
"type": "number",
"minimum": 0,
"description": "Annual rental income in EUR"
},
"annual_charges": {
"type": "number",
"minimum": 0,
"description": "Annual deductible charges in EUR"
},
"depreciation_annual": {
"type": "number",
"minimum": 0,
"description": "Annual depreciation amount in EUR"
}
},
"additionalProperties": false
}Calculate interest savings from early partial loan repayment. Returns: {months_saved, new_months_remaining, interest_savings_eur, early_repayment_eur}. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| early_amount* | number | Early repayment amount EUR |
| monthly_payment* | number | Current monthly payment EUR |
| months_remaining* | number | Months remaining |
| remaining_capital* | number | Remaining loan capital EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"remaining_capital",
"monthly_payment",
"months_remaining",
"early_amount"
],
"properties": {
"early_amount": {
"type": "number",
"description": "Early repayment amount EUR",
"exclusiveMinimum": 0
},
"monthly_payment": {
"type": "number",
"description": "Current monthly payment EUR",
"exclusiveMinimum": 0
},
"months_remaining": {
"type": "number",
"description": "Months remaining",
"exclusiveMinimum": 0
},
"remaining_capital": {
"type": "number",
"description": "Remaining loan capital EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate monthly loan payment for any generic loan. Returns: {principal, monthly_payment, total_cost, total_interest}. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| months* | number | Loan duration in months |
| principal* | number | Loan amount |
| annual_rate* | number | Annual interest rate in % |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"principal",
"annual_rate",
"months"
],
"properties": {
"months": {
"type": "number",
"maximum": 600,
"minimum": 1,
"description": "Loan duration in months"
},
"principal": {
"type": "number",
"minimum": 1,
"description": "Loan amount"
},
"annual_rate": {
"type": "number",
"maximum": 50,
"minimum": 0.01,
"description": "Annual interest rate in %"
}
},
"additionalProperties": false
}Compute Loan-to-Value (LTV) ratio for mortgage risk. Use for mortgage application or PMI thresholds. Inputs: loan amount, property value. Returns LTV %, risk level, PMI required y/n. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| loan_amount* | number | Loan amount EUR |
| property_value* | number | Property value EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"property_value",
"loan_amount"
],
"properties": {
"loan_amount": {
"type": "number",
"description": "Loan amount EUR",
"exclusiveMinimum": 0
},
"property_value": {
"type": "number",
"description": "Property value EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate logarithm in any base (natural, common, binary). Returns: {result}. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| base | string | Log base: e=natural, 10=common, 2=binary |
| value* | number | Value to take log of |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value"
],
"properties": {
"base": {
"enum": [
"e",
"10",
"2"
],
"type": "string",
"default": "e",
"description": "Log base: e=natural, 10=common, 2=binary"
},
"value": {
"type": "number",
"minimum": 0.0001,
"description": "Value to take log of"
}
},
"additionalProperties": false
}Compute the odds of winning a lottery for various prize tiers. Use for awareness, education. Inputs: numbers to pick, total numbers, bonus number config. Returns probability and 1-in-N for each tier. See list_bundles for related 'jeux-probabilites' calculators.
| Argument | Type | Description |
|---|---|---|
| bonus_pool | number | Size of the bonus number pool (default 0, no bonus) |
| bonus_numbers | number | Number of bonus/powerball numbers to match (default 0) |
| total_numbers* | number | Total numbers in the main pool |
| numbers_to_pick* | number | How many numbers you pick |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"numbers_to_pick",
"total_numbers"
],
"properties": {
"bonus_pool": {
"type": "number",
"default": 0,
"minimum": 0,
"description": "Size of the bonus number pool (default 0, no bonus)"
},
"bonus_numbers": {
"type": "number",
"default": 0,
"minimum": 0,
"description": "Number of bonus/powerball numbers to match (default 0)"
},
"total_numbers": {
"type": "number",
"minimum": 2,
"description": "Total numbers in the main pool"
},
"numbers_to_pick": {
"type": "number",
"minimum": 1,
"description": "How many numbers you pick"
}
},
"additionalProperties": false
}Calculate total luggage weight and compare to airline limits (carry-on, economy checked, business checked). Returns: {total_kg, status}. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| items* | array | Array of luggage items with name and weight in kg |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"items"
],
"properties": {
"items": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"weight_kg"
],
"properties": {
"name": {
"type": "string"
},
"weight_kg": {
"type": "number",
"minimum": 0
}
},
"additionalProperties": false
},
"minItems": 1,
"description": "Array of luggage items with name and weight in kg"
}
},
"additionalProperties": false
}French ecological malus 2026: CO2 g/km based tax on new vehicle registration. Returns: {malus_eur, threshold, max}. See list_bundles for related 'auto-transport' calculators.
| Argument | Type | Description |
|---|---|---|
| co2_g_km* | number | CO2 emissions in g/km |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"co2_g_km"
],
"properties": {
"co2_g_km": {
"type": "number",
"minimum": 0,
"description": "CO2 emissions in g/km"
}
},
"additionalProperties": false
}Generate target split times for a marathon, half-marathon, or other race. Use for race-day pacing. Inputs: target finish time, distance km. Returns 5K splits, halfway, and final pace. See list_bundles for related 'sport' calculators.
| Argument | Type | Description |
|---|---|---|
| target_time_minutes* | number | Target marathon finish time in minutes |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"target_time_minutes"
],
"properties": {
"target_time_minutes": {
"type": "number",
"minimum": 90,
"description": "Target marathon finish time in minutes"
}
},
"additionalProperties": false
}Convert between markup and margin (often confused). Use for pricing decisions or COGS reporting. Inputs: cost and either markup % or margin %. Returns selling price and the other metric. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| cost* | number | Cost price |
| selling_price* | number | Selling price |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"cost",
"selling_price"
],
"properties": {
"cost": {
"type": "number",
"minimum": 0,
"description": "Cost price"
},
"selling_price": {
"type": "number",
"minimum": 0,
"description": "Selling price"
}
},
"additionalProperties": false
}Compute French maternity leave duration and IJSS allowance. Use for HR or expectant parents. Inputs: due date, prior children count, multiple birth. Returns pre/post-birth leave days and allowance estimate. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| twins | boolean | Multiple birth |
| existing_children* | number | Existing children |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"existing_children"
],
"properties": {
"twins": {
"type": "boolean",
"default": false,
"description": "Multiple birth"
},
"existing_children": {
"type": "number",
"minimum": 0,
"description": "Existing children"
}
},
"additionalProperties": false
}Estimate maximum heart rate using standard or age-adjusted formulas. Returns: {max_heart_rate}. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| age* | number | Age in years |
| formula | string | Formula: standard (220-age), tanaka (men), gulati (women) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"age"
],
"properties": {
"age": {
"type": "number",
"maximum": 120,
"minimum": 1,
"description": "Age in years"
},
"formula": {
"enum": [
"standard",
"tanaka",
"gulati"
],
"type": "string",
"default": "standard",
"description": "Formula: standard (220-age), tanaka (men), gulati (women)"
}
},
"additionalProperties": false
}Compute meat cooking time and target internal temperature by cut and doneness. Use for kitchen prep. Inputs: meat type, weight kg, doneness. Returns oven time and target temp. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| meat* | string | Meat type |
| doneness | string | Doneness |
| weight_kg* | number | Meat weight kg |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight_kg",
"meat"
],
"properties": {
"meat": {
"enum": [
"beef",
"pork",
"chicken",
"turkey",
"lamb"
],
"type": "string",
"description": "Meat type"
},
"doneness": {
"enum": [
"rare",
"medium_rare",
"medium",
"well_done"
],
"type": "string",
"default": "medium",
"description": "Doneness"
},
"weight_kg": {
"type": "number",
"minimum": 0.1,
"description": "Meat weight kg"
}
},
"additionalProperties": false
}Compute oven cooking time for meat by cut, weight, and doneness. Use for cooking. Inputs: meat type, weight kg, target doneness. Returns time min and oven temp ยฐC. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| doneness* | string | Desired doneness |
| meat_type* | string | Type of meat |
| weight_kg* | number | Meat weight kg |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight_kg",
"meat_type",
"doneness"
],
"properties": {
"doneness": {
"enum": [
"rare",
"medium",
"well"
],
"type": "string",
"description": "Desired doneness"
},
"meat_type": {
"enum": [
"beef",
"pork",
"chicken",
"turkey",
"lamb"
],
"type": "string",
"description": "Type of meat"
},
"weight_kg": {
"type": "number",
"description": "Meat weight kg",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate next period, fertile window, and ovulation date. Returns: {next_period, ovulation_date, fertile_window_start, fertile_window_end}. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| cycle_length | number | Average cycle length days |
| last_period_date* | string | Last period start date YYYY-MM-DD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"last_period_date"
],
"properties": {
"cycle_length": {
"type": "number",
"default": 28,
"maximum": 45,
"minimum": 21,
"description": "Average cycle length days"
},
"last_period_date": {
"type": "string",
"description": "Last period start date YYYY-MM-DD"
}
},
"additionalProperties": false
}Compute crypto mining profitability after electricity costs. Use for miners evaluating ROI. Inputs: hashrate, power W, kWh price, network difficulty, coin price. Returns daily/monthly net profit. See list_bundles for related 'crypto' calculators.
| Argument | Type | Description |
|---|---|---|
| power_watts* | number | Mining hardware power consumption in watts |
| block_reward | number | Block reward in coins (default 3.125 BTC post-halving) |
| hashrate_mhs* | number | Mining hashrate in MH/s |
| coin_price_usd* | number | Current coin price in USD |
| network_difficulty* | number | Current network difficulty |
| electricity_cost_kwh* | number | Electricity cost per kWh in fiat currency |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"hashrate_mhs",
"power_watts",
"electricity_cost_kwh",
"network_difficulty",
"coin_price_usd"
],
"properties": {
"power_watts": {
"type": "number",
"minimum": 0,
"description": "Mining hardware power consumption in watts"
},
"block_reward": {
"type": "number",
"default": 3.125,
"minimum": 0,
"description": "Block reward in coins (default 3.125 BTC post-halving)"
},
"hashrate_mhs": {
"type": "number",
"minimum": 0,
"description": "Mining hashrate in MH/s"
},
"coin_price_usd": {
"type": "number",
"minimum": 0,
"description": "Current coin price in USD"
},
"network_difficulty": {
"type": "number",
"minimum": 0,
"description": "Current network difficulty"
},
"electricity_cost_kwh": {
"type": "number",
"minimum": 0,
"description": "Electricity cost per kWh in fiat currency"
}
},
"additionalProperties": false
}Compute current moon phase and illumination % for any date. Use for astronomy, agriculture, fishing. Inputs: date. Returns phase name, illumination %, age in days. See list_bundles for related 'astronomie-nature' calculators.
| Argument | Type | Description |
|---|---|---|
| date* | string | Date in YYYY-MM-DD format |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"date"
],
"properties": {
"date": {
"type": "string",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"description": "Date in YYYY-MM-DD format"
}
},
"additionalProperties": false
}Calculate Moroccan CNSS contributions (employee and employer shares). Returns: {gross_monthly_mad, employee, employer, pension_ceiling_mad}. See list_bundles for related 'finance-afrique-quebec' calculators.
| Argument | Type | Description |
|---|---|---|
| gross_monthly_mad* | number | Gross monthly salary in MAD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"gross_monthly_mad"
],
"properties": {
"gross_monthly_mad": {
"type": "number",
"minimum": 0,
"description": "Gross monthly salary in MAD"
}
},
"additionalProperties": false
}Calculate Moroccan income tax (IR) on annual net taxable income (SNI) using the CGI Art. 73 progressive scale, minus the family-charge tax reduction. Returns: {annual_income_mad, taxable_income, family_deduction, income_tax_before_family_reduction_mad, income_tax_mad, effective_rate_pct, marginal_rate_pct, brackets}. See list_bundles for related 'finance-afrique-quebec' calculators.
| Argument | Type | Description |
|---|---|---|
| dependents | integer | Number of dependents (tax reduction of 600 MAD/year each, max 6) |
| annual_income_mad* | number | Annual net taxable income (SNI) in MAD: gross minus CNSS/AMO and professional expenses |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"annual_income_mad"
],
"properties": {
"dependents": {
"type": "integer",
"default": 0,
"maximum": 6,
"minimum": 0,
"description": "Number of dependents (tax reduction of 600 MAD/year each, max 6)"
},
"annual_income_mad": {
"type": "number",
"minimum": 0,
"description": "Annual net taxable income (SNI) in MAD: gross minus CNSS/AMO and professional expenses"
}
},
"additionalProperties": false
}Calculate Moroccan property income tax (profit foncier / revenus fonciers). Returns: {annual_rent_mad, taxable_income, income_tax_mad, effective_rate_pct, marginal_rate_pct}. See list_bundles for related 'finance-afrique-quebec' calculators.
| Argument | Type | Description |
|---|---|---|
| dependents | integer | Number of dependents for family deduction |
| expenses_pct | number | Deductible expenses as % of rent (default 40%) |
| annual_rent_mad* | number | Annual rental income in MAD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"annual_rent_mad"
],
"properties": {
"dependents": {
"type": "integer",
"default": 0,
"maximum": 6,
"minimum": 0,
"description": "Number of dependents for family deduction"
},
"expenses_pct": {
"type": "number",
"default": 40,
"maximum": 100,
"minimum": 0,
"description": "Deductible expenses as % of rent (default 40%)"
},
"annual_rent_mad": {
"type": "number",
"minimum": 0,
"description": "Annual rental income in MAD"
}
},
"additionalProperties": false
}Compute Moroccan VAT (TVA) โ convert between HT and TTC. Use for invoicing in Morocco. Inputs: amount, rate (20/14/10/7), mode (ht/ttc). Returns HT, TTC, tax amount. See list_bundles for related 'finance-afrique-quebec' calculators.
| Argument | Type | Description |
|---|---|---|
| mode | string | Input mode: ht=hors taxe, ttc=toutes taxes comprises |
| rate | string | VAT rate: 0%, 7%, 10%, 14%, or 20% (standard) |
| amount* | number | Amount in MAD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"amount"
],
"properties": {
"mode": {
"enum": [
"ht",
"ttc"
],
"type": "string",
"default": "ht",
"description": "Input mode: ht=hors taxe, ttc=toutes taxes comprises"
},
"rate": {
"enum": [
"0",
"7",
"10",
"14",
"20"
],
"type": "string",
"default": "20",
"description": "VAT rate: 0%, 7%, 10%, 14%, or 20% (standard)"
},
"amount": {
"type": "number",
"minimum": 0,
"description": "Amount in MAD"
}
},
"additionalProperties": false
}Calculate mortgage/loan monthly payment, total cost, and optional amortization schedule. Returns: {principal, months, monthly_payment, total_interest, total_cost}. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| years* | number | Loan duration in years |
| principal* | number | Loan amount in currency units |
| annual_rate* | number | Annual interest rate in % |
| with_schedule | boolean | Include first 12 months + last month amortization |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"principal",
"annual_rate",
"years"
],
"properties": {
"years": {
"type": "number",
"maximum": 50,
"minimum": 1,
"description": "Loan duration in years"
},
"principal": {
"type": "number",
"minimum": 1,
"description": "Loan amount in currency units"
},
"annual_rate": {
"type": "number",
"maximum": 30,
"minimum": 0.01,
"description": "Annual interest rate in %"
},
"with_schedule": {
"type": "boolean",
"default": false,
"description": "Include first 12 months + last month amortization"
}
},
"additionalProperties": false
}Calculate mortgage insurance (assurance emprunteur) cost. Returns: {monthly_insurance, annual_insurance, total_insurance}. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| rate_pct | number | Annual insurance rate in % of loan (default 0.36) |
| loan_amount* | number | Loan amount in EUR |
| duration_years* | number | Loan duration in years |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"loan_amount",
"duration_years"
],
"properties": {
"rate_pct": {
"type": "number",
"default": 0.36,
"minimum": 0,
"description": "Annual insurance rate in % of loan (default 0.36)"
},
"loan_amount": {
"type": "number",
"description": "Loan amount in EUR",
"exclusiveMinimum": 0
},
"duration_years": {
"type": "number",
"description": "Loan duration in years",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute motor torque from power and RPM. T(Nm)=9550ยทP(kW)/RPM. Use for mechanical sizing. Inputs: power kW, rpm. Returns torque in Nยทm and lb-ft. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| rpm* | number | RPM |
| power_w* | number | Power watts |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"power_w",
"rpm"
],
"properties": {
"rpm": {
"type": "number",
"minimum": 1,
"description": "RPM"
},
"power_w": {
"type": "number",
"minimum": 0,
"description": "Power watts"
}
},
"additionalProperties": false
}Estimate detailed moving cost based on volume, distance and floor. Returns: {base_cost, total_cost_eur, note}. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| floor | integer | Floor number (default 0 = ground floor) |
| elevator | boolean | Whether elevator is available (default true) |
| volume_m3* | number | Volume of goods to move in m3 |
| distance_km* | number | Moving distance in km |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"volume_m3",
"distance_km"
],
"properties": {
"floor": {
"type": "integer",
"default": 0,
"minimum": 0,
"description": "Floor number (default 0 = ground floor)"
},
"elevator": {
"type": "boolean",
"default": true,
"description": "Whether elevator is available (default true)"
},
"volume_m3": {
"type": "number",
"description": "Volume of goods to move in m3",
"exclusiveMinimum": 0
},
"distance_km": {
"type": "number",
"description": "Moving distance in km",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Estimate moving volume (mยณ) by home type and contents. Use for moving company quotes. Inputs: home size, rooms, furniture density. Returns mยณ and truck size recommendation. See list_bundles for related 'vie-quotidienne' calculators.
| Argument | Type | Description |
|---|---|---|
| type* | string | Home type |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"type"
],
"properties": {
"type": {
"enum": [
"studio",
"t1",
"t2",
"t3",
"t4",
"t5"
],
"type": "string",
"description": "Home type"
}
},
"additionalProperties": false
}Calculate net worth and debt ratio from assets and liabilities. Returns: {net_worth_eur, debt_ratio_pct}. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| assets_total* | number | Total assets EUR |
| liabilities_total* | number | Total liabilities EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"assets_total",
"liabilities_total"
],
"properties": {
"assets_total": {
"type": "number",
"minimum": 0,
"description": "Total assets EUR"
},
"liabilities_total": {
"type": "number",
"minimum": 0,
"description": "Total liabilities EUR"
}
},
"additionalProperties": false
}Calculate night shift pay (21h-6h) with configurable premium percentage. Returns: {night_hourly_rate, total_pay, premium_earned}. See list_bundles for related 'temps-rh' calculators.
| Argument | Type | Description |
|---|---|---|
| night_hours* | number | Number of night hours worked (21h-6h) |
| premium_pct | number | Night shift premium percentage (default 25%) |
| base_hourly_rate* | number | Normal hourly rate in euros |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"base_hourly_rate",
"night_hours"
],
"properties": {
"night_hours": {
"type": "number",
"minimum": 0,
"description": "Number of night hours worked (21h-6h)"
},
"premium_pct": {
"type": "number",
"default": 25,
"maximum": 200,
"minimum": 0,
"description": "Night shift premium percentage (default 25%)"
},
"base_hourly_rate": {
"type": "number",
"minimum": 0.01,
"description": "Normal hourly rate in euros"
}
},
"additionalProperties": false
}Calculate French notary fees (frais de notaire) for a real estate purchase. Returns: {price, droits_mutation, emoluments_notaire, frais_divers, total_frais, total_pct}. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| type | string | Property type: ancien (old) or neuf (new) |
| price* | number | Purchase price in euros |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"price"
],
"properties": {
"type": {
"enum": [
"ancien",
"neuf"
],
"type": "string",
"default": "ancien",
"description": "Property type: ancien (old) or neuf (new)"
},
"price": {
"type": "number",
"minimum": 1,
"description": "Purchase price in euros"
}
},
"additionalProperties": false
}Detailed breakdown of French notary fees by component (taxes, emoluments, debours). Use for property buyers in France. Inputs: property price, type (new/old). DMTO on old property = 6.32% (departmental 5.00% + communal 1.20% + 2.37% fee on the departmental part; 5.81% for first-time buyers of a main residence or departments at 4.50%). Returns total fees and per-component breakdown. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| type* | string | Property type |
| property_price* | number | Property price EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"property_price",
"type"
],
"properties": {
"type": {
"enum": [
"new",
"old"
],
"type": "string",
"description": "Property type"
},
"property_price": {
"type": "number",
"description": "Property price EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Convert a number between bases 2 (binary), 8 (octal), 10 (decimal), and 16 (hex). Use for programming. Inputs: value, from-base, to-base. Returns converted number. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| value* | string | Number to convert as string |
| to_base* | integer | Target base |
| from_base* | integer | Source base |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from_base",
"to_base"
],
"properties": {
"value": {
"type": "string",
"description": "Number to convert as string"
},
"to_base": {
"type": "integer",
"description": "Target base"
},
"from_base": {
"type": "integer",
"description": "Source base"
}
},
"additionalProperties": false
}Compute Ohm's law: V=IยทR. Solve for any of V, I, R given the other two. Use for electronics. Inputs: any 2 of (V volts, I amps, R ohms). Returns the third. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| current | number | Amps |
| voltage | number | Volts |
| resistance | number | Ohms |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"current": {
"type": "number",
"description": "Amps"
},
"voltage": {
"type": "number",
"description": "Volts"
},
"resistance": {
"type": "number",
"description": "Ohms"
}
},
"additionalProperties": false
}Estimate 1 repetition maximum from submaximal lift using Epley, Brzycki and Lombardi formulas. Returns: {epley_1rm, brzycki_1rm, lombardi_1rm, average_1rm}. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| reps* | number | Number of repetitions performed |
| weight_lifted* | number | Weight lifted in kg or lbs |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight_lifted",
"reps"
],
"properties": {
"reps": {
"type": "number",
"maximum": 30,
"minimum": 1,
"description": "Number of repetitions performed"
},
"weight_lifted": {
"type": "number",
"minimum": 1,
"description": "Weight lifted in kg or lbs"
}
},
"additionalProperties": false
}Compute French overtime pay (heures supplรฉmentaires) per labor code. Use for HR or employee verification. Inputs: hourly rate, normal hours, overtime hours. Returns gross overtime pay with 25%/50% premiums. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| base_hours | number | Base weekly hours |
| hourly_rate* | number | Hourly rate EUR |
| actual_hours* | number | Actual weekly hours |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"actual_hours",
"hourly_rate"
],
"properties": {
"base_hours": {
"type": "number",
"default": 35,
"description": "Base weekly hours"
},
"hourly_rate": {
"type": "number",
"minimum": 0,
"description": "Hourly rate EUR"
},
"actual_hours": {
"type": "number",
"minimum": 0,
"description": "Actual weekly hours"
}
},
"additionalProperties": false
}Calculate French overtime pay: first 8h at +25%, beyond 8h at +50% (weekly threshold 35h). Returns: {hours_at_25pct, hours_at_50pct, pay_25pct_zone, pay_50pct_zone, total_overtime_pay, extra_vs_normal}. See list_bundles for related 'temps-rh' calculators.
| Argument | Type | Description |
|---|---|---|
| overtime_hours* | number | Total overtime hours worked beyond 35h/week |
| base_hourly_rate* | number | Normal hourly rate in euros |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"base_hourly_rate",
"overtime_hours"
],
"properties": {
"overtime_hours": {
"type": "number",
"minimum": 0,
"description": "Total overtime hours worked beyond 35h/week"
},
"base_hourly_rate": {
"type": "number",
"minimum": 0.01,
"description": "Normal hourly rate in euros"
}
},
"additionalProperties": false
}Calculate ovulation date and fertile window from last period and cycle length. Returns: {lmp, ovulation_date, fertile_window_start, fertile_window_end, next_period}. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| cycle_length | number | Menstrual cycle length in days |
| last_period_date* | string | YYYY-MM-DD โ First day of last menstrual period |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"last_period_date"
],
"properties": {
"cycle_length": {
"type": "number",
"default": 28,
"maximum": 45,
"minimum": 21,
"description": "Menstrual cycle length in days"
},
"last_period_date": {
"type": "string",
"description": "YYYY-MM-DD โ First day of last menstrual period"
}
},
"additionalProperties": false
}Compute paint quantity for walls including coats and waste margin. Use for renovation budget. Inputs: room dimensions, coats, openings. Returns paint liters and recommended buying. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| coats | number | Number of coats |
| area_m2* | number | Wall area mยฒ |
| coverage | number | Coverage mยฒ/liter |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"area_m2"
],
"properties": {
"coats": {
"type": "number",
"default": 2,
"minimum": 1,
"description": "Number of coats"
},
"area_m2": {
"type": "number",
"minimum": 0,
"description": "Wall area mยฒ"
},
"coverage": {
"type": "number",
"default": 10,
"description": "Coverage mยฒ/liter"
}
},
"additionalProperties": false
}Compute paint liters needed for a surface with chosen number of coats. Use for painting projects. Inputs: surface mยฒ, coats, paint coverage mยฒ/L. Returns liters and number of cans. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| coats | integer | Coats |
| area_m2* | number | Area in mยฒ |
| coverage | number | mยฒ/liter |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"area_m2"
],
"properties": {
"coats": {
"type": "integer",
"default": 2,
"minimum": 1,
"description": "Coats"
},
"area_m2": {
"type": "number",
"minimum": 0.1,
"description": "Area in mยฒ"
},
"coverage": {
"type": "number",
"default": 10,
"description": "mยฒ/liter"
}
},
"additionalProperties": false
}Get dimensions (mm, in) of standard paper formats (A0-A10, B0-B10, US Letter, Legal, Tabloid). Use for printing. Inputs: format name. Returns dimensions in mm and inches. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| format* | string | Paper format name |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"format"
],
"properties": {
"format": {
"enum": [
"A0",
"A1",
"A2",
"A3",
"A4",
"A5",
"A6",
"A7",
"A8",
"Letter",
"Legal",
"Tabloid"
],
"type": "string",
"description": "Paper format name"
}
},
"additionalProperties": false
}Estimate Parcoursup admission score from bac + lycรฉe grades. Use for French university candidates. Inputs: grades and coefficients per subject. Returns estimated score. See list_bundles for related 'education' calculators.
| Argument | Type | Description |
|---|---|---|
| bac_average* | number | Expected/actual bac average (/20) |
| option_bonus | number | Bonus points from options |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"bac_average"
],
"properties": {
"bac_average": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "Expected/actual bac average (/20)"
},
"option_bonus": {
"type": "number",
"default": 0,
"description": "Bonus points from options"
}
},
"additionalProperties": false
}Estimate Parcoursup weighted score from French baccalaureate component grades. See list_bundles for related 'education' calculators.
| Argument | Type | Description |
|---|---|---|
| grand_oral_note* | number | Grand Oral examination grade out of 20 |
| bac_general_average* | number | General baccalaurรฉat average out of 20 |
| specialite_1_average* | number | First speciality subject average out of 20 |
| specialite_2_average* | number | Second speciality subject average out of 20 |
| controle_continu_average* | number | Continuous assessment (contrรดle continu) average out of 20 |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"bac_general_average",
"specialite_1_average",
"specialite_2_average",
"grand_oral_note",
"controle_continu_average"
],
"properties": {
"grand_oral_note": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "Grand Oral examination grade out of 20"
},
"bac_general_average": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "General baccalaurรฉat average out of 20"
},
"specialite_1_average": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "First speciality subject average out of 20"
},
"specialite_2_average": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "Second speciality subject average out of 20"
},
"controle_continu_average": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "Continuous assessment (contrรดle continu) average out of 20"
}
},
"additionalProperties": false
}Calculate part-time work percentage and optional pro-rata salary. Returns: {percentage, prorata_salary}. See list_bundles for related 'temps-rh' calculators.
| Argument | Type | Description |
|---|---|---|
| full_salary | number | Full-time salary to pro-rate (optional) |
| full_time_hours | number | Full-time weekly hours (FR default 35h) |
| part_time_hours* | number | Part-time weekly hours |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"part_time_hours"
],
"properties": {
"full_salary": {
"type": "number",
"minimum": 0,
"description": "Full-time salary to pro-rate (optional)"
},
"full_time_hours": {
"type": "number",
"default": 35,
"minimum": 1,
"description": "Full-time weekly hours (FR default 35h)"
},
"part_time_hours": {
"type": "number",
"minimum": 0.5,
"description": "Part-time weekly hours"
}
},
"additionalProperties": false
}Check if passport is valid for travel (6-month rule). Returns: {note}. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| expiry_date* | string | Passport expiry date YYYY-MM-DD |
| travel_date* | string | Planned travel date YYYY-MM-DD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"expiry_date",
"travel_date"
],
"properties": {
"expiry_date": {
"type": "string",
"description": "Passport expiry date YYYY-MM-DD"
},
"travel_date": {
"type": "string",
"description": "Planned travel date YYYY-MM-DD"
}
},
"additionalProperties": false
}Calculate dry pasta, water and salt for a given number of people. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| appetite* | string | Appetite level |
| num_people* | integer | Number of people |
| pasta_type* | string | Pasta shape |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"num_people",
"pasta_type",
"appetite"
],
"properties": {
"appetite": {
"enum": [
"light",
"normal",
"generous"
],
"type": "string",
"description": "Appetite level"
},
"num_people": {
"type": "integer",
"description": "Number of people",
"exclusiveMinimum": 0
},
"pasta_type": {
"enum": [
"spaghetti",
"penne",
"fusilli"
],
"type": "string",
"description": "Pasta shape"
}
},
"additionalProperties": false
}Compute simple pendulum period T=2ฯโ(L/g). Use for physics homework or clock design. Inputs: length m, gravity m/sยฒ (default 9.81). Returns period in seconds. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| gravity | number | Gravity m/sยฒ |
| length_m* | number | Pendulum length meters |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"length_m"
],
"properties": {
"gravity": {
"type": "number",
"default": 9.81,
"description": "Gravity m/sยฒ"
},
"length_m": {
"type": "number",
"minimum": 0.01,
"description": "Pendulum length meters"
}
},
"additionalProperties": false
}Calculate percentages: value of total, percentage change, what percent. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| a* | number | First value |
| b* | number | Second value |
| operation* | string | of: X% of Y; change: from A to B; what_pct: X is what % of Y |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"operation",
"a",
"b"
],
"properties": {
"a": {
"type": "number",
"description": "First value"
},
"b": {
"type": "number",
"description": "Second value"
},
"operation": {
"enum": [
"of",
"change",
"what_pct"
],
"type": "string",
"description": "of: X% of Y; change: from A to B; what_pct: X is what % of Y"
}
},
"additionalProperties": false
}Compute % change between two values, signed (increase or decrease). Use for performance comparisons, statistics. Inputs: old value, new value. Returns absolute and relative change. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| new_value* | number | New value |
| old_value* | number | Original value |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"old_value",
"new_value"
],
"properties": {
"new_value": {
"type": "number",
"description": "New value"
},
"old_value": {
"type": "number",
"description": "Original value"
}
},
"additionalProperties": false
}Compute the percentile rank of a value within a dataset. Use for benchmarking scores or salaries. Inputs: value, dataset (list of numbers). Returns percentile (0-100). See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| value* | number | Value to rank |
| total_values* | number | Total number of values |
| values_below* | number | Number of values below |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"values_below",
"total_values"
],
"properties": {
"value": {
"type": "number",
"description": "Value to rank"
},
"total_values": {
"type": "number",
"minimum": 1,
"description": "Total number of values"
},
"values_below": {
"type": "number",
"minimum": 0,
"description": "Number of values below"
}
},
"additionalProperties": false
}Calculate perimeter/circumference for common shapes. Returns: {shape, perimeter}. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| side | number | Side for square/hexagon |
| shape* | string | Shape |
| width | number | Width/side b |
| length | number | Length/side a |
| radius | number | Radius |
| side_c | number | Side c for triangle |
| semi_major | number | Semi-major for ellipse |
| semi_minor | number | Semi-minor for ellipse |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"shape"
],
"properties": {
"side": {
"type": "number",
"minimum": 0,
"description": "Side for square/hexagon"
},
"shape": {
"enum": [
"rectangle",
"triangle",
"circle",
"square",
"hexagon",
"ellipse"
],
"type": "string",
"description": "Shape"
},
"width": {
"type": "number",
"minimum": 0,
"description": "Width/side b"
},
"length": {
"type": "number",
"minimum": 0,
"description": "Length/side a"
},
"radius": {
"type": "number",
"minimum": 0,
"description": "Radius"
},
"side_c": {
"type": "number",
"minimum": 0,
"description": "Side c for triangle"
},
"semi_major": {
"type": "number",
"minimum": 0,
"description": "Semi-major for ellipse"
},
"semi_minor": {
"type": "number",
"minimum": 0,
"description": "Semi-minor for ellipse"
}
},
"additionalProperties": false
}Convert pet age (dog/cat) to human-equivalent years. Use for pet health monitoring. Inputs: animal type, age years, breed size. Returns human-equivalent age. See list_bundles for related 'animaux' calculators.
| Argument | Type | Description |
|---|---|---|
| size | string | |
| animal* | string | |
| age_years* | number |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"animal",
"age_years"
],
"properties": {
"size": {
"enum": [
"small",
"medium",
"large"
],
"type": "string"
},
"animal": {
"enum": [
"dog",
"cat"
],
"type": "string"
},
"age_years": {
"type": "number",
"minimum": 0
}
},
"additionalProperties": false
}Estimate body condition score proxy (BMI) for dogs and cats. Returns: {thresholds}. See list_bundles for related 'animaux' calculators.
| Argument | Type | Description |
|---|---|---|
| animal* | string | |
| weight_kg* | number | |
| body_length_cm* | number |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"animal",
"weight_kg",
"body_length_cm"
],
"properties": {
"animal": {
"enum": [
"dog",
"cat"
],
"type": "string"
},
"weight_kg": {
"type": "number",
"exclusiveMinimum": 0
},
"body_length_cm": {
"type": "number",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute daily food portion (g) for dogs and cats by weight, age, activity. Use for pet feeding. Inputs: animal type, weight, activity, life stage. Returns grams/day and meal split. See list_bundles for related 'animaux' calculators.
| Argument | Type | Description |
|---|---|---|
| activity* | string | Activity level |
| pet_type* | string | Type of pet |
| age_years* | number | Pet age years |
| weight_kg* | number | Pet weight kg |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight_kg",
"age_years",
"activity",
"pet_type"
],
"properties": {
"activity": {
"enum": [
"low",
"normal",
"high"
],
"type": "string",
"description": "Activity level"
},
"pet_type": {
"enum": [
"dog",
"cat"
],
"type": "string",
"description": "Type of pet"
},
"age_years": {
"type": "number",
"minimum": 0,
"description": "Pet age years"
},
"weight_kg": {
"type": "number",
"description": "Pet weight kg",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute veterinary medication dose by pet weight (mg/kg). Use for medication administration. Inputs: weight kg, dose mg/kg. Returns total mg and tablet count. See list_bundles for related 'animaux' calculators.
| Argument | Type | Description |
|---|---|---|
| weight_kg* | number | |
| dose_mg_per_kg* | number | |
| concentration_mg_per_ml | number |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight_kg",
"dose_mg_per_kg"
],
"properties": {
"weight_kg": {
"type": "number",
"exclusiveMinimum": 0
},
"dose_mg_per_kg": {
"type": "number",
"exclusiveMinimum": 0
},
"concentration_mg_per_ml": {
"type": "number",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Generate upcoming vaccination schedule for a puppy or kitten. Use for pet care planning. Inputs: pet type, birth date, last vaccine date. Returns upcoming dates and vaccines. See list_bundles for related 'animaux' calculators.
| Argument | Type | Description |
|---|---|---|
| pet_type* | string | Type of pet |
| birth_date* | string | Pet birth date YYYY-MM-DD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"pet_type",
"birth_date"
],
"properties": {
"pet_type": {
"enum": [
"dog",
"cat"
],
"type": "string",
"description": "Type of pet"
},
"birth_date": {
"type": "string",
"description": "Pet birth date YYYY-MM-DD"
}
},
"additionalProperties": false
}Compute pH from H+ concentration or vice versa. Use for chemistry or aquarium care. Formula: pH=-log10[H+]. Inputs: pH or [H+] mol/L. Returns the missing value and acidity class. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| ph_value | number | pH |
| h_concentration | number | H+ mol/L |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"ph_value": {
"type": "number",
"description": "pH"
},
"h_concentration": {
"type": "number",
"description": "H+ mol/L"
}
},
"additionalProperties": false
}Compute French Pinel rental investment tax reduction (rates 2026). Use to evaluate Pinel real estate investment savings. Inputs: investment amount, duration (6/9/12y). Returns total tax reduction and yearly amount. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| duration* | string | Rental commitment duration in years: 6, 9 or 12 |
| investment* | number | Investment amount in EUR (max 300,000) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"investment",
"duration"
],
"properties": {
"duration": {
"enum": [
"6",
"9",
"12"
],
"type": "string",
"description": "Rental commitment duration in years: 6, 9 or 12"
},
"investment": {
"type": "number",
"maximum": 300000,
"description": "Investment amount in EUR (max 300,000)",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate the minimum pipe diameter required for a given flow rate and maximum velocity. See list_bundles for related 'plomberie' calculators.
| Argument | Type | Description |
|---|---|---|
| flow_rate_lpm* | number | Required flow rate in liters per minute |
| max_velocity_ms | number | Maximum water velocity in m/s (default 1.5 m/s per DTU norms) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"flow_rate_lpm"
],
"properties": {
"flow_rate_lpm": {
"type": "number",
"minimum": 0,
"description": "Required flow rate in liters per minute"
},
"max_velocity_ms": {
"type": "number",
"default": 1.5,
"minimum": 0.1,
"description": "Maximum water velocity in m/s (default 1.5 m/s per DTU norms)"
}
},
"additionalProperties": false
}Calculate water flow rate through a pipe using the Hazen-Williams formula. Returns: {C_coefficient}. See list_bundles for related 'plomberie' calculators.
| Argument | Type | Description |
|---|---|---|
| length_m* | number | Pipe length in meters |
| material* | string | Pipe material (affects Hazen-Williams C coefficient) |
| diameter_mm* | number | Pipe internal diameter in millimeters |
| pressure_bar | number | Available water pressure in bar (default 3 bar) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"diameter_mm",
"length_m",
"material"
],
"properties": {
"length_m": {
"type": "number",
"minimum": 0.1,
"description": "Pipe length in meters"
},
"material": {
"enum": [
"copper",
"pex",
"pvc",
"steel"
],
"type": "string",
"description": "Pipe material (affects Hazen-Williams C coefficient)"
},
"diameter_mm": {
"type": "number",
"minimum": 6,
"description": "Pipe internal diameter in millimeters"
},
"pressure_bar": {
"type": "number",
"default": 3,
"minimum": 0.1,
"description": "Available water pressure in bar (default 3 bar)"
}
},
"additionalProperties": false
}Compute your weight on other planets using gravity ratios. Use for fun, education, sci-fi. Inputs: weight on Earth (kg). Returns weight on each planet of the solar system. See list_bundles for related 'astronomie-nature' calculators.
| Argument | Type | Description |
|---|---|---|
| planet* | string | Target planet |
| earth_weight_kg* | number | Weight on Earth in kg |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"earth_weight_kg",
"planet"
],
"properties": {
"planet": {
"enum": [
"mercury",
"venus",
"mars",
"jupiter",
"saturn",
"uranus",
"neptune"
],
"type": "string",
"description": "Target planet"
},
"earth_weight_kg": {
"type": "number",
"description": "Weight on Earth in kg",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate plaster volume and weight for a given surface and thickness. Returns: {area_m2, volume_m3, weight_kg, bags_25kg}. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| area_m2* | number | Surface area in mยฒ |
| thickness_mm | number | Thickness in mm (default 13) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"area_m2"
],
"properties": {
"area_m2": {
"type": "number",
"minimum": 0,
"description": "Surface area in mยฒ"
},
"thickness_mm": {
"type": "number",
"default": 13,
"minimum": 1,
"description": "Thickness in mm (default 13)"
}
},
"additionalProperties": false
}Compute probability of common poker hands (straight, flush, full house, etc.) given a starting hand. Use for poker strategy. Inputs: hole cards, community cards. Returns probability per hand category. See list_bundles for related 'jeux-probabilites' calculators.
| Argument | Type | Description |
|---|---|---|
| hand_type* | string | Poker hand type to calculate probability for |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"hand_type"
],
"properties": {
"hand_type": {
"enum": [
"royal_flush",
"straight_flush",
"four_of_a_kind",
"full_house",
"flush",
"straight",
"three_of_a_kind",
"two_pair",
"one_pair",
"high_card"
],
"type": "string",
"description": "Poker hand type to calculate probability for"
}
},
"additionalProperties": false
}Compute chlorine dosage (g) for pool maintenance based on volume and target ppm. Use for pool care. Inputs: pool volume mยณ, target chlorine ppm, current ppm. Returns chlorine grams. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| target_ppm | number | Target chlorine ppm |
| current_ppm | number | Current chlorine ppm |
| volume_liters* | number | Pool volume liters |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"volume_liters"
],
"properties": {
"target_ppm": {
"type": "number",
"default": 1.5,
"description": "Target chlorine ppm"
},
"current_ppm": {
"type": "number",
"default": 0,
"minimum": 0,
"description": "Current chlorine ppm"
},
"volume_liters": {
"type": "number",
"minimum": 0,
"description": "Pool volume liters"
}
},
"additionalProperties": false
}Compute swimming pool water volume in mยณ and liters. Use for pool maintenance dosing. Inputs: shape, dimensions. Returns volume mยณ and L. See list_bundles for related 'vie-quotidienne' calculators.
| Argument | Type | Description |
|---|---|---|
| shape* | string | Shape |
| depth_m* | number | Avg depth m |
| width_m | number | Width m |
| length_m | number | Length m |
| diameter_m | number | Diameter (round) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"shape",
"depth_m"
],
"properties": {
"shape": {
"enum": [
"rectangular",
"round",
"oval"
],
"type": "string",
"description": "Shape"
},
"depth_m": {
"type": "number",
"minimum": 0.1,
"description": "Avg depth m"
},
"width_m": {
"type": "number",
"description": "Width m"
},
"length_m": {
"type": "number",
"description": "Length m"
},
"diameter_m": {
"type": "number",
"description": "Diameter (round)"
}
},
"additionalProperties": false
}Estimate net income from portage salarial (freelance via umbrella company). Returns: {portage_management_fee_10pct, social_charges_45pct, net_monthly, net_annual_estimate, net_ratio_pct}. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| daily_rate* | number | Daily billing rate (TJM) in euros |
| days_per_month | number | Billable days per month (default 20) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"daily_rate"
],
"properties": {
"daily_rate": {
"type": "number",
"minimum": 0,
"description": "Daily billing rate (TJM) in euros"
},
"days_per_month": {
"type": "number",
"default": 20,
"maximum": 23,
"minimum": 1,
"description": "Billable days per month (default 20)"
}
},
"additionalProperties": false
}Calculate portfolio allocation amounts by percentage for major crypto asset classes. Returns: {allocation_pct, sum_pct}. See list_bundles for related 'crypto' calculators.
| Argument | Type | Description |
|---|---|---|
| btc_pct | number | Bitcoin allocation percentage (default 40%) |
| eth_pct | number | Ethereum allocation percentage (default 30%) |
| alts_pct | number | Altcoins allocation percentage (default 20%) |
| total_value* | number | Total portfolio value in fiat currency |
| stablecoins_pct | number | Stablecoins allocation percentage (default 10%) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"total_value"
],
"properties": {
"btc_pct": {
"type": "number",
"default": 40,
"maximum": 100,
"minimum": 0,
"description": "Bitcoin allocation percentage (default 40%)"
},
"eth_pct": {
"type": "number",
"default": 30,
"maximum": 100,
"minimum": 0,
"description": "Ethereum allocation percentage (default 30%)"
},
"alts_pct": {
"type": "number",
"default": 20,
"maximum": 100,
"minimum": 0,
"description": "Altcoins allocation percentage (default 20%)"
},
"total_value": {
"type": "number",
"minimum": 0,
"description": "Total portfolio value in fiat currency"
},
"stablecoins_pct": {
"type": "number",
"default": 10,
"maximum": 100,
"minimum": 0,
"description": "Stablecoins allocation percentage (default 10%)"
}
},
"additionalProperties": false
}Convert power values between W, kW, HP, BTU/h, cal/s. Returns: {original}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| value* | number | Power value to convert |
| to_unit* | string | Target unit |
| from_unit* | string | Source unit |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from_unit",
"to_unit"
],
"properties": {
"value": {
"type": "number",
"description": "Power value to convert"
},
"to_unit": {
"enum": [
"W",
"kW",
"HP",
"BTU_h",
"cal_s"
],
"type": "string",
"description": "Target unit"
},
"from_unit": {
"enum": [
"W",
"kW",
"HP",
"BTU_h",
"cal_s"
],
"type": "string",
"description": "Source unit"
}
},
"additionalProperties": false
}Calculate due date and current gestational week from last period. Returns: {due_date}. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| last_period_date* | string | Last menstrual period date YYYY-MM-DD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"last_period_date"
],
"properties": {
"last_period_date": {
"type": "string",
"description": "Last menstrual period date YYYY-MM-DD"
}
},
"additionalProperties": false
}Compute the present value (PV) of a future sum given a discount rate. Use in DCF, NPV, or retirement planning. Inputs: future value, annual rate %, years. Returns PV and discount factor. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| rate* | number | Annual discount rate percent |
| years* | number | Number of years |
| future_value* | number | Future value EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"future_value",
"rate",
"years"
],
"properties": {
"rate": {
"type": "number",
"minimum": 0,
"description": "Annual discount rate percent"
},
"years": {
"type": "number",
"description": "Number of years",
"exclusiveMinimum": 0
},
"future_value": {
"type": "number",
"description": "Future value EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Convert pressure between Pa, kPa, MPa, bar, psi, atm, mmHg, mbar, torr. Use for engineering, weather, medicine. Inputs: value, from-unit, to-unit. Returns: {original}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| value* | number | Pressure value |
| to_unit* | string | Target unit |
| from_unit* | string | Source unit |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from_unit",
"to_unit"
],
"properties": {
"value": {
"type": "number",
"description": "Pressure value"
},
"to_unit": {
"enum": [
"Pa",
"bar",
"psi",
"atm",
"mmHg",
"mbar"
],
"type": "string",
"description": "Target unit"
},
"from_unit": {
"enum": [
"Pa",
"bar",
"psi",
"atm",
"mmHg",
"mbar"
],
"type": "string",
"description": "Source unit"
}
},
"additionalProperties": false
}Estimate French prime d'activitรฉ monthly amount (CAF benefit). Use for low-income workers checking eligibility. Inputs: net monthly salary, household composition. Returns estimated benefit and eligibility note. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| salary* | number | Net monthly salary in euros |
| household_size | integer | Number of people in household (1-6) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"salary"
],
"properties": {
"salary": {
"type": "number",
"minimum": 0,
"description": "Net monthly salary in euros"
},
"household_size": {
"type": "integer",
"default": 1,
"maximum": 6,
"minimum": 1,
"description": "Number of people in household (1-6)"
}
},
"additionalProperties": false
}Calculate print DPI quality and maximum print size from image pixel dimensions. Returns: {effective_dpi}. See list_bundles for related 'photographie' calculators.
| Argument | Type | Description |
|---|---|---|
| image_width_px* | number | Image width in pixels |
| print_width_cm* | number | Desired print width in centimeters |
| image_height_px* | number | Image height in pixels |
| print_height_cm* | number | Desired print height in centimeters |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"image_width_px",
"image_height_px",
"print_width_cm",
"print_height_cm"
],
"properties": {
"image_width_px": {
"type": "number",
"minimum": 1,
"description": "Image width in pixels"
},
"print_width_cm": {
"type": "number",
"minimum": 1,
"description": "Desired print width in centimeters"
},
"image_height_px": {
"type": "number",
"minimum": 1,
"description": "Image height in pixels"
},
"print_height_cm": {
"type": "number",
"minimum": 1,
"description": "Desired print height in centimeters"
}
},
"additionalProperties": false
}Calculate binomial probability P(X=k) and cumulative P(X<=k). Returns: {exact_probability, cumulative_probability, std_deviation}. See list_bundles for related 'education' calculators.
| Argument | Type | Description |
|---|---|---|
| k* | integer | Number of successes |
| n* | integer | Number of trials |
| p* | number | Probability of success per trial |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"n",
"k",
"p"
],
"properties": {
"k": {
"type": "integer",
"minimum": 0,
"description": "Number of successes"
},
"n": {
"type": "integer",
"maximum": 170,
"minimum": 0,
"description": "Number of trials"
},
"p": {
"type": "number",
"maximum": 1,
"minimum": 0,
"description": "Probability of success per trial"
}
},
"additionalProperties": false
}Calculate gross margin, net margin, and markup percentage. Returns: {revenue, cost}. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| cost* | number | Total cost |
| revenue* | number | Total revenue/selling price |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"revenue",
"cost"
],
"properties": {
"cost": {
"type": "number",
"minimum": 0,
"description": "Total cost"
},
"revenue": {
"type": "number",
"minimum": 0,
"description": "Total revenue/selling price"
}
},
"additionalProperties": false
}Compute projectile trajectory: range, max height, time of flight. Use for physics or ballistics. Inputs: initial velocity, launch angle, height. Returns range, peak, flight time. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| height | number | Initial height m |
| velocity* | number | Initial velocity m/s |
| angle_deg* | number | Launch angle degrees |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"velocity",
"angle_deg"
],
"properties": {
"height": {
"type": "number",
"default": 0,
"minimum": 0,
"description": "Initial height m"
},
"velocity": {
"type": "number",
"minimum": 0,
"description": "Initial velocity m/s"
},
"angle_deg": {
"type": "number",
"maximum": 90,
"minimum": 0,
"description": "Launch angle degrees"
}
},
"additionalProperties": false
}Calculate French property capital gains tax after holding-period abatements. Returns: {raw_gain_eur, taxable_ir_eur, taxable_ps_eur, tax_ir_eur, tax_ps_eur, total_tax_eur, ...}. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| sale_price* | number | Sale price EUR |
| holding_years* | number | Years held |
| purchase_price* | number | Purchase price EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"purchase_price",
"sale_price",
"holding_years"
],
"properties": {
"sale_price": {
"type": "number",
"description": "Sale price EUR",
"exclusiveMinimum": 0
},
"holding_years": {
"type": "number",
"minimum": 0,
"description": "Years held"
},
"purchase_price": {
"type": "number",
"description": "Purchase price EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Estimate French taxe fonciรจre from cadastral value and commune rate. Returns: {estimated_tax_eur, taxable_base, commune_rate_pct}. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| commune_rate* | number | Commune tax rate percent |
| cadastral_value* | number | Valeur locative cadastrale EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"cadastral_value",
"commune_rate"
],
"properties": {
"commune_rate": {
"type": "number",
"maximum": 100,
"minimum": 0,
"description": "Commune tax rate percent"
},
"cadastral_value": {
"type": "number",
"description": "Valeur locative cadastrale EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute French taxe fonciรจre (annual property tax). Use for owners of property in France. Inputs: cadastral rental value (valeur locative), commune rate %. Returns annual tax due. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| cadastral_value* | number | Cadastral rental value (valeur locative cadastrale) in EUR |
| commune_rate_pct | number | Commune tax rate in % (default 25) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"cadastral_value"
],
"properties": {
"cadastral_value": {
"type": "number",
"description": "Cadastral rental value (valeur locative cadastrale) in EUR",
"exclusiveMinimum": 0
},
"commune_rate_pct": {
"type": "number",
"default": 25,
"maximum": 100,
"minimum": 0,
"description": "Commune tax rate in % (default 25)"
}
},
"additionalProperties": false
}Compute property transfer tax (FR droits de mutation on existing property at the common 5.00% departmental rate, BE, US, UK, DE). Use for property buyers. Inputs: property price, country. Returns tax due and effective rate. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| price* | number | Property price in local currency |
| country* | string | Country code: FR/BE/US/UK/DE |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"price",
"country"
],
"properties": {
"price": {
"type": "number",
"description": "Property price in local currency",
"exclusiveMinimum": 0
},
"country": {
"enum": [
"FR",
"BE",
"US",
"UK",
"DE"
],
"type": "string",
"description": "Country code: FR/BE/US/UK/DE"
}
},
"additionalProperties": false
}Check French PTZ (zero-rate loan) eligibility and maximum amount. Returns: {income_ceiling, ptz_max_pct_of_operation, note}. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| zone* | string | Geographic zone of the property |
| household_size* | integer | Number of people in household (1-5+) |
| household_income* | number | Annual household income (revenu fiscal de reference) in EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"household_income",
"household_size",
"zone"
],
"properties": {
"zone": {
"enum": [
"A",
"Abis",
"B1",
"B2",
"C"
],
"type": "string",
"description": "Geographic zone of the property"
},
"household_size": {
"type": "integer",
"maximum": 5,
"minimum": 1,
"description": "Number of people in household (1-5+)"
},
"household_income": {
"type": "number",
"description": "Annual household income (revenu fiscal de reference) in EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}French fiscal horsepower CV = (CO2/45) + (P_kW/40)^1.6. Returns: {cv_raw, cv_fiscaux}. See list_bundles for related 'auto-transport' calculators.
| Argument | Type | Description |
|---|---|---|
| co2_g_km* | number | CO2 g/km |
| power_kw* | number | Engine power in kW |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"co2_g_km",
"power_kw"
],
"properties": {
"co2_g_km": {
"type": "number",
"minimum": 0,
"description": "CO2 g/km"
},
"power_kw": {
"type": "number",
"minimum": 0,
"description": "Engine power in kW"
}
},
"additionalProperties": false
}Compute pump power requirement. P=ฯยทgยทHยทQ/ฮท. Use for fluid system design. Inputs: flow mยณ/h, head m, fluid density, efficiency. Returns kW. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| head_m* | number | Head m |
| flow_m3h* | number | Flow rate mยณ/h |
| efficiency | number | Pump efficiency |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"flow_m3h",
"head_m"
],
"properties": {
"head_m": {
"type": "number",
"minimum": 0,
"description": "Head m"
},
"flow_m3h": {
"type": "number",
"minimum": 0,
"description": "Flow rate mยณ/h"
},
"efficiency": {
"type": "number",
"default": 0.75,
"maximum": 1,
"minimum": 0.1,
"description": "Pump efficiency"
}
},
"additionalProperties": false
}Compare purchasing power between two years. Use to translate historical prices, salaries, or savings to today's value. Inputs: amount, from-year, to-year, average inflation %. Returns equivalent value. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| amount* | number | Amount to compare |
| to_year* | number | Target year |
| from_year* | number | Starting year |
| avg_inflation | number | Average annual inflation rate in % |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"amount",
"from_year",
"to_year"
],
"properties": {
"amount": {
"type": "number",
"minimum": 0,
"description": "Amount to compare"
},
"to_year": {
"type": "number",
"description": "Target year"
},
"from_year": {
"type": "number",
"description": "Starting year"
},
"avg_inflation": {
"type": "number",
"default": 2,
"description": "Average annual inflation rate in %"
}
},
"additionalProperties": false
}Compute pyramid volume V=(1/3)ยทbase_areaยทheight. Use for geometry or architecture. Inputs: base area, height (and optional slant for surface area). Returns volume and surface area. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| height* | number | Pyramid height |
| base_length* | number | Base side length |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"base_length",
"height"
],
"properties": {
"height": {
"type": "number",
"minimum": 0,
"description": "Pyramid height"
},
"base_length": {
"type": "number",
"minimum": 0,
"description": "Base side length"
}
},
"additionalProperties": false
}Find missing side of right triangle using Pythagorean theorem. Returns: {error}. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| a | number | Side a length |
| b | number | Side b length |
| c | number | Hypotenuse c length |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"a": {
"type": "number",
"minimum": 0,
"description": "Side a length"
},
"b": {
"type": "number",
"minimum": 0,
"description": "Side b length"
},
"c": {
"type": "number",
"minimum": 0,
"description": "Hypotenuse c length"
}
},
"additionalProperties": false
}Solve quadratic equation axยฒ+bx+c=0 with discriminant analysis. Use for math homework or physics problems. Inputs: coefficients a, b, c. Returns roots (real or complex), discriminant, and vertex. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| a* | number | Coefficient a |
| b* | number | Coefficient b |
| c* | number | Coefficient c |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"a",
"b",
"c"
],
"properties": {
"a": {
"type": "number",
"description": "Coefficient a"
},
"b": {
"type": "number",
"description": "Coefficient b"
},
"c": {
"type": "number",
"description": "Coefficient c"
}
},
"additionalProperties": false
}Calculate Quebec provincial income tax (Revenu Quรฉbec) with the basic personal amount credited at the lowest rate. Excludes employment-specific credits (QPP/QPIP/EI, worker deduction): for a salary use calculate_canada_combined_tax. Returns: {income_cad, basic_personal_amount, basic_personal_credit, taxable_income, provincial_tax, effective_rate_pct, marginal_rate_pct, ...}. See list_bundles for related 'finance-afrique-quebec' calculators.
| Argument | Type | Description |
|---|---|---|
| income_cad* | number | Annual income in Canadian dollars (CAD) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"income_cad"
],
"properties": {
"income_cad": {
"type": "number",
"minimum": 0,
"description": "Annual income in Canadian dollars (CAD)"
}
},
"additionalProperties": false
}Predict race time for a target distance using Riegel formula. Returns: {predicted_time_minutes, predicted_formatted, predicted_pace_min_km}. See list_bundles for related 'sport' calculators.
| Argument | Type | Description |
|---|---|---|
| target_distance_km* | number | Target race distance in km |
| reference_distance_km* | number | Reference race distance in km |
| reference_time_minutes* | number | Reference race time in minutes |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"reference_distance_km",
"reference_time_minutes",
"target_distance_km"
],
"properties": {
"target_distance_km": {
"type": "number",
"minimum": 0.1,
"description": "Target race distance in km"
},
"reference_distance_km": {
"type": "number",
"minimum": 0.1,
"description": "Reference race distance in km"
},
"reference_time_minutes": {
"type": "number",
"minimum": 1,
"description": "Reference race time in minutes"
}
},
"additionalProperties": false
}Compute remaining quantity after radioactive decay. Use for physics or carbon dating. Formula: N=N0ยท(0.5)^(t/half-life). Inputs: initial qty, half-life, elapsed time. Returns remaining qty. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| time* | number | Time elapsed |
| initial* | number | Initial amount |
| half_life* | number | Half-life |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"initial",
"half_life",
"time"
],
"properties": {
"time": {
"type": "number",
"minimum": 0,
"description": "Time elapsed"
},
"initial": {
"type": "number",
"minimum": 0,
"description": "Initial amount"
},
"half_life": {
"type": "number",
"minimum": 0.001,
"description": "Half-life"
}
},
"additionalProperties": false
}Estimate annual rainwater collection volume from a roof. See list_bundles for related 'astronomie-nature' calculators.
| Argument | Type | Description |
|---|---|---|
| roof_area_m2* | number | Roof catchment area in square metres |
| efficiency_pct | number | Collection efficiency percentage (default 80%) |
| annual_rainfall_mm* | number | Average annual rainfall in millimetres |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"roof_area_m2",
"annual_rainfall_mm"
],
"properties": {
"roof_area_m2": {
"type": "number",
"description": "Roof catchment area in square metres",
"exclusiveMinimum": 0
},
"efficiency_pct": {
"type": "number",
"default": 80,
"maximum": 100,
"minimum": 0,
"description": "Collection efficiency percentage (default 80%)"
},
"annual_rainfall_mm": {
"type": "number",
"description": "Average annual rainfall in millimetres",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute soil volume needed to fill a raised garden bed. Use for gardening setup. Inputs: length, width, depth (m). Returns soil mยณ, bag count, mix recommendation (40% compost / 30% topsoil / 30% sand). See list_bundles for related 'jardinage' calculators.
| Argument | Type | Description |
|---|---|---|
| width_m* | number | Raised bed width in meters |
| depth_cm | number | Raised bed depth in centimeters (default 30cm) |
| length_m* | number | Raised bed length in meters |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"length_m",
"width_m"
],
"properties": {
"width_m": {
"type": "number",
"minimum": 0.1,
"description": "Raised bed width in meters"
},
"depth_cm": {
"type": "number",
"default": 30,
"maximum": 100,
"minimum": 10,
"description": "Raised bed depth in centimeters (default 30cm)"
},
"length_m": {
"type": "number",
"minimum": 0.1,
"description": "Raised bed length in meters"
}
},
"additionalProperties": false
}Simplify a ratio to lowest terms using GCD. Use for proportions, mixing, or scaling. Inputs: a, b (and optional c). Returns simplified ratio. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| numerator* | integer | Numerator |
| denominator* | integer | Denominator |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"numerator",
"denominator"
],
"properties": {
"numerator": {
"type": "integer",
"description": "Numerator",
"exclusiveMinimum": 0
},
"denominator": {
"type": "integer",
"description": "Denominator",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Estimate reading time for a text based on word count. Returns: {hours_minutes}. See list_bundles for related 'education' calculators.
| Argument | Type | Description |
|---|---|---|
| word_count* | number | Number of words in text |
| reading_speed_wpm | number | Reading speed words per minute |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"word_count"
],
"properties": {
"word_count": {
"type": "number",
"description": "Number of words in text",
"exclusiveMinimum": 0
},
"reading_speed_wpm": {
"type": "number",
"default": 250,
"description": "Reading speed words per minute",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate French real estate agency fees using sliding scale. Returns: {agency_fees, scale}. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| sale_price* | number | Property sale price in EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"sale_price"
],
"properties": {
"sale_price": {
"type": "number",
"description": "Property sale price in EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute total calories, protein, carbs, fat for a recipe and per serving. Use for meal planning or nutrition labels. Inputs: list of ingredients with grams, servings count. Returns macro breakdown per serving and total. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| ingredients* | array |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"ingredients"
],
"properties": {
"ingredients": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"calories_per_100g",
"protein_per_100g",
"carbs_per_100g",
"fat_per_100g",
"quantity_g"
],
"properties": {
"name": {
"type": "string"
},
"quantity_g": {
"type": "number"
},
"fat_per_100g": {
"type": "number"
},
"carbs_per_100g": {
"type": "number"
},
"protein_per_100g": {
"type": "number"
},
"calories_per_100g": {
"type": "number"
}
},
"additionalProperties": false
}
}
},
"additionalProperties": false
}Scale recipe quantities to a new servings count. Use for adjusting recipes. Inputs: ingredients with quantities, original servings, target servings. Returns adjusted quantities. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| amount* | number | Original ingredient amount |
| target_servings* | number | Target servings |
| original_servings* | number | Original servings |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"original_servings",
"target_servings",
"amount"
],
"properties": {
"amount": {
"type": "number",
"minimum": 0,
"description": "Original ingredient amount"
},
"target_servings": {
"type": "number",
"minimum": 1,
"description": "Target servings"
},
"original_servings": {
"type": "number",
"minimum": 1,
"description": "Original servings"
}
},
"additionalProperties": false
}Scale recipe ingredients up or down by a factor or new servings count. Use for cooking adjustments. Inputs: ingredients list, original servings, new servings. Returns scaled ingredient list. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| target* | number | Target servings |
| original* | number | Original servings |
| ingredients* | array | Ingredients |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"original",
"target",
"ingredients"
],
"properties": {
"target": {
"type": "number",
"minimum": 1,
"description": "Target servings"
},
"original": {
"type": "number",
"minimum": 1,
"description": "Original servings"
},
"ingredients": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"qty",
"unit"
],
"properties": {
"qty": {
"type": "number"
},
"name": {
"type": "string"
},
"unit": {
"type": "string"
}
},
"additionalProperties": false
},
"description": "Ingredients"
}
},
"additionalProperties": false
}Compute area, perimeter, and apothem of a regular n-gon. Use for geometry or tiling. Inputs: number of sides, side length. Returns full geometric properties. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| sides* | number | Number of sides |
| length* | number | Side length |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"sides",
"length"
],
"properties": {
"sides": {
"type": "number",
"maximum": 100,
"minimum": 3,
"description": "Number of sides"
},
"length": {
"type": "number",
"minimum": 0,
"description": "Side length"
}
},
"additionalProperties": false
}Calculate rent increase allowed by French IRL index. Returns: {new_rent_eur, increase_eur}. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| new_irl* | number | Latest published IRL |
| old_irl* | number | IRL at lease start |
| current_rent* | number | Current rent EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"current_rent",
"old_irl",
"new_irl"
],
"properties": {
"new_irl": {
"type": "number",
"description": "Latest published IRL",
"exclusiveMinimum": 0
},
"old_irl": {
"type": "number",
"description": "IRL at lease start",
"exclusiveMinimum": 0
},
"current_rent": {
"type": "number",
"description": "Current rent EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute the rent-to-income ratio. Use to assess housing affordability (rule of thumb: keep under 33%). Inputs: monthly rent, monthly gross income. Returns rent ratio % and verdict. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| rent* | number | Monthly rent |
| income* | number | Monthly income |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"rent",
"income"
],
"properties": {
"rent": {
"type": "number",
"minimum": 0,
"description": "Monthly rent"
},
"income": {
"type": "number",
"minimum": 1,
"description": "Monthly income"
}
},
"additionalProperties": false
}Compute net rental profitability after taxes and charges. Use for real estate investment analysis. Inputs: purchase price, monthly rent, charges, vacancy %, tax bracket. Returns net yield % and cash flow. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| annual_tax* | number | Annual property tax in EUR |
| monthly_rent* | number | Monthly rental income in EUR |
| purchase_price* | number | Purchase price in EUR |
| monthly_charges* | number | Monthly charges/expenses in EUR |
| notary_fees_pct | number | Notary fees as % of price (default 8) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"purchase_price",
"monthly_rent",
"monthly_charges",
"annual_tax"
],
"properties": {
"annual_tax": {
"type": "number",
"minimum": 0,
"description": "Annual property tax in EUR"
},
"monthly_rent": {
"type": "number",
"description": "Monthly rental income in EUR",
"exclusiveMinimum": 0
},
"purchase_price": {
"type": "number",
"description": "Purchase price in EUR",
"exclusiveMinimum": 0
},
"monthly_charges": {
"type": "number",
"minimum": 0,
"description": "Monthly charges/expenses in EUR"
},
"notary_fees_pct": {
"type": "number",
"default": 8,
"minimum": 0,
"description": "Notary fees as % of price (default 8)"
}
},
"additionalProperties": false
}Calculate gross and net rental yield for a real estate investment. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| annual_rent* | number | Annual rental income in EUR |
| annual_charges | number | Annual charges/expenses in EUR (default 0) |
| purchase_price* | number | Purchase price in EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"purchase_price",
"annual_rent"
],
"properties": {
"annual_rent": {
"type": "number",
"description": "Annual rental income in EUR",
"exclusiveMinimum": 0
},
"annual_charges": {
"type": "number",
"default": 0,
"minimum": 0,
"description": "Annual charges/expenses in EUR (default 0)"
},
"purchase_price": {
"type": "number",
"description": "Purchase price in EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate gross rental yield from property price and monthly rent. Returns: {gross_yield_pct}. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| monthly_rent* | number | Monthly rent in EUR |
| purchase_price* | number | Property purchase price in EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"purchase_price",
"monthly_rent"
],
"properties": {
"monthly_rent": {
"type": "number",
"description": "Monthly rent in EUR",
"exclusiveMinimum": 0
},
"purchase_price": {
"type": "number",
"description": "Property purchase price in EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate net rental yield after charges and vacancy. Returns: {net_yield_pct, effective_annual_rent, net_income}. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| monthly_rent* | number | Monthly rent EUR |
| vacancy_rate* | number | Vacancy rate percent |
| annual_charges* | number | Annual charges, taxes, insurance EUR |
| purchase_price* | number | Property price EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"purchase_price",
"monthly_rent",
"annual_charges",
"vacancy_rate"
],
"properties": {
"monthly_rent": {
"type": "number",
"description": "Monthly rent EUR",
"exclusiveMinimum": 0
},
"vacancy_rate": {
"type": "number",
"maximum": 100,
"minimum": 0,
"description": "Vacancy rate percent"
},
"annual_charges": {
"type": "number",
"minimum": 0,
"description": "Annual charges, taxes, insurance EUR"
},
"purchase_price": {
"type": "number",
"description": "Property price EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Estimate retirement date from birth date and country legal retirement age. Returns: {retirement_age, retirement_date, years_remaining, already_retired, note}. See list_bundles for related 'temps-rh' calculators.
| Argument | Type | Description |
|---|---|---|
| country* | string | Country: FR=64 years, US=67 years, UK=66 years |
| birth_date* | string | YYYY-MM-DD โ Date of birth |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"birth_date",
"country"
],
"properties": {
"country": {
"enum": [
"FR",
"US",
"UK"
],
"type": "string",
"description": "Country: FR=64 years, US=67 years, UK=66 years"
},
"birth_date": {
"type": "string",
"description": "YYYY-MM-DD โ Date of birth"
}
},
"additionalProperties": false
}Estimate French basic retirement pension (retraite de base Assurance Vieillesse). Returns: {average_salary_best25, annual_pension, max_monthly_pension, prorata_pct}. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| target_years | number | Target quarters for full pension (default 172 = 43 years) |
| years_contributed* | number | Total years of contribution |
| average_salary_best25* | number | Average annual salary of best 25 years in euros |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"average_salary_best25",
"years_contributed"
],
"properties": {
"target_years": {
"type": "number",
"default": 172,
"maximum": 200,
"minimum": 1,
"description": "Target quarters for full pension (default 172 = 43 years)"
},
"years_contributed": {
"type": "number",
"maximum": 50,
"minimum": 0,
"description": "Total years of contribution"
},
"average_salary_best25": {
"type": "number",
"minimum": 0,
"description": "Average annual salary of best 25 years in euros"
}
},
"additionalProperties": false
}Project retirement savings vs need and identify shortfall. Use for retirement planning. Inputs: current age, retirement age, current savings, monthly contribution, target income. Returns projected balance and gap. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| current_age* | number | Current age |
| savings_rate* | number | Annual return rate percent |
| monthly_income* | number | Desired monthly retirement income EUR |
| retirement_age* | number | Target retirement age |
| current_savings* | number | Current savings EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"current_age",
"retirement_age",
"monthly_income",
"savings_rate",
"current_savings"
],
"properties": {
"current_age": {
"type": "number",
"maximum": 70,
"minimum": 18,
"description": "Current age"
},
"savings_rate": {
"type": "number",
"minimum": 0,
"description": "Annual return rate percent"
},
"monthly_income": {
"type": "number",
"description": "Desired monthly retirement income EUR",
"exclusiveMinimum": 0
},
"retirement_age": {
"type": "number",
"maximum": 75,
"minimum": 50,
"description": "Target retirement age"
},
"current_savings": {
"type": "number",
"minimum": 0,
"description": "Current savings EUR"
}
},
"additionalProperties": false
}Calculate optimal reverb pre-delay based on room size and musical tempo. See list_bundles for related 'musique' calculators.
| Argument | Type | Description |
|---|---|---|
| bpm | number | Tempo in BPM (used to snap pre-delay to musical grid) |
| room_length_m* | number | Room length in meters |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"room_length_m"
],
"properties": {
"bpm": {
"type": "number",
"default": 120,
"maximum": 300,
"minimum": 20,
"description": "Tempo in BPM (used to snap pre-delay to musical grid)"
},
"room_length_m": {
"type": "number",
"minimum": 1,
"description": "Room length in meters"
}
},
"additionalProperties": false
}Find ring size in EU/US/UK/JP given finger circumference or diameter. Use for jewelry shopping. Inputs: circumference mm or diameter mm. Returns size in EU, US, UK, JP systems. See list_bundles for related 'textile-mode' calculators.
| Argument | Type | Description |
|---|---|---|
| from_system* | string | |
| circumference_mm* | number |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"circumference_mm",
"from_system"
],
"properties": {
"from_system": {
"enum": [
"FR",
"US",
"UK",
"JP"
],
"type": "string"
},
"circumference_mm": {
"type": "number",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Convert ring sizes between EU, US, UK, and Japan systems. Use for international jewelry shopping. Inputs: size, from-system, to-system. Returns equivalent size. See list_bundles for related 'textile-mode' calculators.
| Argument | Type | Description |
|---|---|---|
| size* | number | Ring size in source system |
| from_system* | string | Source sizing system |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"size",
"from_system"
],
"properties": {
"size": {
"type": "number",
"description": "Ring size in source system"
},
"from_system": {
"enum": [
"FR",
"US",
"UK",
"EU",
"JP"
],
"type": "string",
"description": "Source sizing system"
}
},
"additionalProperties": false
}Compute Return on Investment as a percentage. Use to evaluate investments, marketing spend, or projects. Inputs: investment cost, return value. Returns ROI %, profit, and multiple. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| investment* | number | Initial investment amount |
| return_value* | number | Final value or total returns |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"investment",
"return_value"
],
"properties": {
"investment": {
"type": "number",
"minimum": 0.01,
"description": "Initial investment amount"
},
"return_value": {
"type": "number",
"description": "Final value or total returns"
}
},
"additionalProperties": false
}Convert between Roman numerals and decimal (1-3999). Returns: {roman_numeral, decimal}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| value* | integer | Decimal number to convert to Roman numeral |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value"
],
"properties": {
"value": {
"type": "integer",
"maximum": 3999,
"minimum": 1,
"description": "Decimal number to convert to Roman numeral"
}
},
"additionalProperties": false
}Calculate roof surface area from building footprint and slope angle. Returns: {rafter_length_m, net_roof_area_m2, with_5pct_overhang_m2}. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| base_width_m* | number | Building width in meters |
| base_length_m* | number | Building length in meters |
| slope_degrees* | number | Roof slope in degrees |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"base_length_m",
"base_width_m",
"slope_degrees"
],
"properties": {
"base_width_m": {
"type": "number",
"minimum": 0,
"description": "Building width in meters"
},
"base_length_m": {
"type": "number",
"minimum": 0,
"description": "Building length in meters"
},
"slope_degrees": {
"type": "number",
"maximum": 80,
"minimum": 0,
"description": "Roof slope in degrees"
}
},
"additionalProperties": false
}Calculate roof truss dimensions, rafter length and material quantities for a pitched roof. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| span_m* | number | Total roof span in meters (full width) |
| load_kg_m2 | number | Total roof load in kg/mยฒ including snow, wind and tiles (default 150) |
| spacing_cm | number | Distance between trusses/rafters in cm (default 60cm) |
| pitch_degrees* | number | Roof pitch angle in degrees |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"span_m",
"pitch_degrees"
],
"properties": {
"span_m": {
"type": "number",
"minimum": 1,
"description": "Total roof span in meters (full width)"
},
"load_kg_m2": {
"type": "number",
"default": 150,
"minimum": 50,
"description": "Total roof load in kg/mยฒ including snow, wind and tiles (default 150)"
},
"spacing_cm": {
"type": "number",
"default": 60,
"maximum": 120,
"minimum": 30,
"description": "Distance between trusses/rafters in cm (default 60cm)"
},
"pitch_degrees": {
"type": "number",
"maximum": 75,
"minimum": 5,
"description": "Roof pitch angle in degrees"
}
},
"additionalProperties": false
}Estimate years to double an investment using the Rule of 72. Returns: {doubling_years_rule72, doubling_years_precise, annual_rate_pct}. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| annual_rate* | number | Annual return rate percent |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"annual_rate"
],
"properties": {
"annual_rate": {
"type": "number",
"description": "Annual return rate percent",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Solve rule of three (cross-multiplication): if aโb, then cโ? Use for proportions, recipe scaling, or unit pricing. Inputs: a, b, c. Returns x. See list_bundles for related 'education' calculators.
| Argument | Type | Description |
|---|---|---|
| a* | number | Known value A |
| b* | number | Corresponding value B |
| x* | number | New value of A |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"a",
"b",
"x"
],
"properties": {
"a": {
"type": "number",
"description": "Known value A"
},
"b": {
"type": "number",
"description": "Corresponding value B"
},
"x": {
"type": "number",
"description": "New value of A"
}
},
"additionalProperties": false
}Calculate running pace (min/km) and speed (km/h) from distance and time. Returns: {pace_min_per_km, pace_formatted}. See list_bundles for related 'sport' calculators.
| Argument | Type | Description |
|---|---|---|
| distance_km* | number | Distance in kilometers |
| time_minutes* | number | Total time in minutes |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"distance_km",
"time_minutes"
],
"properties": {
"distance_km": {
"type": "number",
"minimum": 0.1,
"description": "Distance in kilometers"
},
"time_minutes": {
"type": "number",
"minimum": 0.1,
"description": "Total time in minutes"
}
},
"additionalProperties": false
}Compare salaries across countries using PPP (FR=0.79, US=1.0, UK=0.81, DE=0.77, CH=1.36, BE=0.80). Returns: {ppp_from, ppp_to, equivalent, ratio}. See list_bundles for related 'vie-quotidienne' calculators.
| Argument | Type | Description |
|---|---|---|
| salary* | number | Salary in local currency |
| to_country* | string | Target country |
| from_country* | string | Source country |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"salary",
"from_country",
"to_country"
],
"properties": {
"salary": {
"type": "number",
"minimum": 0,
"description": "Salary in local currency"
},
"to_country": {
"enum": [
"FR",
"US",
"UK",
"DE",
"CH",
"BE"
],
"type": "string",
"description": "Target country"
},
"from_country": {
"enum": [
"FR",
"US",
"UK",
"DE",
"CH",
"BE"
],
"type": "string",
"description": "Source country"
}
},
"additionalProperties": false
}Convert hourly wage to monthly and annual salary, gross or net. Use for job comparisons. Inputs: hourly rate, hours/week, weeks/year. Returns weekly, monthly, and annual figures. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| hourly_rate* | number | Hourly rate |
| hours_per_week | number | Hours worked per week |
| weeks_per_year | number | Weeks worked per year |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"hourly_rate"
],
"properties": {
"hourly_rate": {
"type": "number",
"description": "Hourly rate",
"exclusiveMinimum": 0
},
"hours_per_week": {
"type": "number",
"default": 35,
"description": "Hours worked per week",
"exclusiveMinimum": 0
},
"weeks_per_year": {
"type": "number",
"default": 52,
"description": "Weeks worked per year",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute required sample size for a survey to hit a target margin of error. Use for survey design and A/B testing. Inputs: population, confidence %, margin of error %. Returns minimum sample size. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| confidence | string | Confidence level |
| population | number | Population size |
| margin_error_pct* | number | Margin of error % |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"margin_error_pct"
],
"properties": {
"confidence": {
"enum": [
"90",
"95",
"99"
],
"type": "string",
"default": "95",
"description": "Confidence level"
},
"population": {
"type": "number",
"default": 1000000,
"minimum": 1,
"description": "Population size"
},
"margin_error_pct": {
"type": "number",
"maximum": 50,
"minimum": 0.1,
"description": "Margin of error %"
}
},
"additionalProperties": false
}Compute time and monthly contribution needed to reach a savings target. Use for goal-based personal finance. Inputs: target amount, current savings, monthly contribution, annual return %. Returns months to goal. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| annual_rate* | number | Annual return rate percent |
| target_amount* | number | Savings target EUR |
| monthly_savings* | number | Monthly savings EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"target_amount",
"monthly_savings",
"annual_rate"
],
"properties": {
"annual_rate": {
"type": "number",
"minimum": 0,
"description": "Annual return rate percent"
},
"target_amount": {
"type": "number",
"description": "Savings target EUR",
"exclusiveMinimum": 0
},
"monthly_savings": {
"type": "number",
"description": "Monthly savings EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compare net tuition cost across multiple scholarships and aid packages. Use for college choice. Inputs: list of {tuition, aid} pairs. Returns ranked net costs and best option. See list_bundles for related 'education' calculators.
| Argument | Type | Description |
|---|---|---|
| tuition* | number | Annual tuition EUR |
| scholarship_1 | number | Scholarship 1 amount EUR |
| scholarship_2 | number | Scholarship 2 amount EUR |
| scholarship_3 | number | Scholarship 3 amount EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"tuition"
],
"properties": {
"tuition": {
"type": "number",
"minimum": 0,
"description": "Annual tuition EUR"
},
"scholarship_1": {
"type": "number",
"default": 0,
"minimum": 0,
"description": "Scholarship 1 amount EUR"
},
"scholarship_2": {
"type": "number",
"default": 0,
"minimum": 0,
"description": "Scholarship 2 amount EUR"
},
"scholarship_3": {
"type": "number",
"default": 0,
"minimum": 0,
"description": "Scholarship 3 amount EUR"
}
},
"additionalProperties": false
}Compare SCI taxation under IS (corporate tax) vs IR (income tax). Use for French real-estate investors choosing tax regime. Inputs: rental income, charges, owner tax bracket. Returns net result under each regime. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| annual_rent* | number | Annual gross rental income in EUR |
| annual_charges* | number | Annual deductible charges in EUR (management fees, interest, maintenance) |
| property_value* | number | Property value for amortization calculation under IS |
| marginal_tax_rate_pct* | number | Shareholder marginal income tax rate in percent (e.g. 30, 41, 45) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"annual_rent",
"annual_charges",
"marginal_tax_rate_pct",
"property_value"
],
"properties": {
"annual_rent": {
"type": "number",
"minimum": 0,
"description": "Annual gross rental income in EUR"
},
"annual_charges": {
"type": "number",
"minimum": 0,
"description": "Annual deductible charges in EUR (management fees, interest, maintenance)"
},
"property_value": {
"type": "number",
"minimum": 0,
"description": "Property value for amortization calculation under IS"
},
"marginal_tax_rate_pct": {
"type": "number",
"maximum": 89,
"minimum": 0,
"description": "Shareholder marginal income tax rate in percent (e.g. 30, 41, 45)"
}
},
"additionalProperties": false
}Calculate the number of seeds needed based on surface area, spacing and germination rate. See list_bundles for related 'jardinage' calculators.
| Argument | Type | Description |
|---|---|---|
| surface_m2* | number | Surface area in square meters |
| row_spacing_cm* | number | Distance between rows in centimeters |
| plant_spacing_cm* | number | Distance between plants in a row in centimeters |
| germination_rate_pct | number | Germination rate in percent (default 85%) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"surface_m2",
"row_spacing_cm",
"plant_spacing_cm"
],
"properties": {
"surface_m2": {
"type": "number",
"minimum": 0,
"description": "Surface area in square meters"
},
"row_spacing_cm": {
"type": "number",
"minimum": 1,
"description": "Distance between rows in centimeters"
},
"plant_spacing_cm": {
"type": "number",
"minimum": 1,
"description": "Distance between plants in a row in centimeters"
},
"germination_rate_pct": {
"type": "number",
"default": 85,
"maximum": 100,
"minimum": 1,
"description": "Germination rate in percent (default 85%)"
}
},
"additionalProperties": false
}Calculate Senegalese social contributions (CSS/IPRES) for employee and employer. Returns: {gross_monthly_xof, employee, employer, ipres_ceiling_monthly_xof}. See list_bundles for related 'finance-afrique-quebec' calculators.
| Argument | Type | Description |
|---|---|---|
| accident_rate_pct | number | Work accident insurance rate 1-5% (employer only, default 3%) |
| gross_monthly_xof* | number | Gross monthly salary in XOF |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"gross_monthly_xof"
],
"properties": {
"accident_rate_pct": {
"type": "number",
"default": 3,
"maximum": 5,
"minimum": 1,
"description": "Work accident insurance rate 1-5% (employer only, default 3%)"
},
"gross_monthly_xof": {
"type": "number",
"minimum": 0,
"description": "Gross monthly salary in XOF"
}
},
"additionalProperties": false
}Calculate Senegalese income tax (IR) on annual taxable income using the CGI Art. 173 progressive scale in XOF, before the family-charge reduction (Art. 174). Returns: {annual_income_xof, income_tax_xof, income_tax_capped_xof, effective_rate_pct, marginal_rate_pct, brackets}. See list_bundles for related 'finance-afrique-quebec' calculators.
| Argument | Type | Description |
|---|---|---|
| annual_income_xof* | number | Annual taxable income in XOF: gross minus the 30 % allowance capped at 900000 |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"annual_income_xof"
],
"properties": {
"annual_income_xof": {
"type": "number",
"minimum": 0,
"description": "Annual taxable income in XOF: gross minus the 30 % allowance capped at 900000"
}
},
"additionalProperties": false
}Compute Senegalese VAT (TVA) โ 18% standard rate. Use for invoicing in Senegal. Inputs: amount, mode (ht/ttc). Returns HT, TTC, tax amount. See list_bundles for related 'finance-afrique-quebec' calculators.
| Argument | Type | Description |
|---|---|---|
| mode | string | Input mode: ht=hors taxe, ttc=toutes taxes comprises |
| rate | number | TVA rate in % (standard 18%) |
| amount* | number | Amount in XOF |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"amount"
],
"properties": {
"mode": {
"enum": [
"ht",
"ttc"
],
"type": "string",
"default": "ht",
"description": "Input mode: ht=hors taxe, ttc=toutes taxes comprises"
},
"rate": {
"type": "number",
"default": 18,
"maximum": 100,
"minimum": 0,
"description": "TVA rate in % (standard 18%)"
},
"amount": {
"type": "number",
"minimum": 0,
"description": "Amount in XOF"
}
},
"additionalProperties": false
}Calculate nth term and sum of arithmetic or geometric sequence. Returns: {common_difference, nth_term, sum_of_n}. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| n* | integer | Number of terms |
| type* | string | Sequence type |
| common* | number | Common difference (arithmetic) or ratio (geometric) |
| first_term* | number | First term (a1) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"type",
"first_term",
"common",
"n"
],
"properties": {
"n": {
"type": "integer",
"minimum": 1,
"description": "Number of terms"
},
"type": {
"enum": [
"arithmetic",
"geometric"
],
"type": "string",
"description": "Sequence type"
},
"common": {
"type": "number",
"description": "Common difference (arithmetic) or ratio (geometric)"
},
"first_term": {
"type": "number",
"description": "First term (a1)"
}
},
"additionalProperties": false
}Calculate French severance pay for rupture conventionnelle or licenciement. Returns: {monthly_salary, years_first_10, years_above_10, gross_indemnite, note}. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| monthly_salary* | number | Reference gross monthly salary in euros |
| years_seniority* | number | Years of seniority in the company |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"monthly_salary",
"years_seniority"
],
"properties": {
"monthly_salary": {
"type": "number",
"minimum": 0,
"description": "Reference gross monthly salary in euros"
},
"years_seniority": {
"type": "number",
"minimum": 0,
"description": "Years of seniority in the company"
}
},
"additionalProperties": false
}Compute volumetric (dimensional) weight for shipping. Carriers bill the higher of actual and dim weight. Inputs: LรWรH cm, divisor (5000 air, 6000 ground). Returns dim weight kg. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| width_cm* | number | Width cm |
| actual_kg* | number | Actual weight kg |
| height_cm* | number | Height cm |
| length_cm* | number | Length cm |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"length_cm",
"width_cm",
"height_cm",
"actual_kg"
],
"properties": {
"width_cm": {
"type": "number",
"minimum": 0,
"description": "Width cm"
},
"actual_kg": {
"type": "number",
"minimum": 0,
"description": "Actual weight kg"
},
"height_cm": {
"type": "number",
"minimum": 0,
"description": "Height cm"
},
"length_cm": {
"type": "number",
"minimum": 0,
"description": "Length cm"
}
},
"additionalProperties": false
}Convert shoe size between EU, US, UK, and Japanese systems. Use for international shopping. Inputs: size, from-system, to-system, gender. Returns equivalent. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| size* | number | Shoe size |
| from_system* | string | From system |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"size",
"from_system"
],
"properties": {
"size": {
"type": "number",
"minimum": 1,
"description": "Shoe size"
},
"from_system": {
"enum": [
"EU",
"US_M",
"US_W",
"UK"
],
"type": "string",
"description": "From system"
}
},
"additionalProperties": false
}Convert shoe size between EU, US (M/W) and UK systems. Returns: {converted_size, eu_size, original_size}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| size* | number | Shoe size in source system |
| to_system* | string | Target sizing system |
| from_system* | string | Source sizing system |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"size",
"from_system",
"to_system"
],
"properties": {
"size": {
"type": "number",
"description": "Shoe size in source system",
"exclusiveMinimum": 0
},
"to_system": {
"enum": [
"EU",
"US_M",
"US_W",
"UK"
],
"type": "string",
"description": "Target sizing system"
},
"from_system": {
"enum": [
"EU",
"US_M",
"US_W",
"UK"
],
"type": "string",
"description": "Source sizing system"
}
},
"additionalProperties": false
}Compute simple interest I=Pยทrยทt. Use for short-term loans, basic savings accounts, and homework. Returns interest amount and final balance. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| years* | number | Duration in years |
| principal* | number | Initial amount |
| annual_rate* | number | Annual interest rate in % |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"principal",
"annual_rate",
"years"
],
"properties": {
"years": {
"type": "number",
"minimum": 0,
"description": "Duration in years"
},
"principal": {
"type": "number",
"minimum": 0,
"description": "Initial amount"
},
"annual_rate": {
"type": "number",
"description": "Annual interest rate in %"
}
},
"additionalProperties": false
}Estimate optimal bedtime or wake time based on 90-min sleep cycles. Use for sleep optimization. Inputs: target wake or bedtime. Returns 4-6 cycle recommendations. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| bedtime* | string | Bedtime HH:MM |
| wake_time* | string | Wake time HH:MM |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"bedtime",
"wake_time"
],
"properties": {
"bedtime": {
"type": "string",
"description": "Bedtime HH:MM"
},
"wake_time": {
"type": "string",
"description": "Wake time HH:MM"
}
},
"additionalProperties": false
}Compute slope as percentage, angle in degrees, and ratio. Use for ramps, roofs, or terrain analysis. Inputs: rise, run. Returns slope% and angleยฐ. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| run_m* | number | Horizontal run m |
| rise_m* | number | Vertical rise m |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"rise_m",
"run_m"
],
"properties": {
"run_m": {
"type": "number",
"minimum": 0.01,
"description": "Horizontal run m"
},
"rise_m": {
"type": "number",
"description": "Vertical rise m"
}
},
"additionalProperties": false
}Compute money and health time saved by quitting smoking. Use for motivation and budgeting. Inputs: cigarettes/day, pack price. Returns daily/monthly/yearly savings and life-time recovered. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| pack_price* | number | Price per pack |
| cigarettes_per_day* | number | Cigarettes smoked per day |
| cigarettes_per_pack | number | Cigarettes per pack |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"cigarettes_per_day",
"pack_price"
],
"properties": {
"pack_price": {
"type": "number",
"description": "Price per pack",
"exclusiveMinimum": 0
},
"cigarettes_per_day": {
"type": "number",
"description": "Cigarettes smoked per day",
"exclusiveMinimum": 0
},
"cigarettes_per_pack": {
"type": "number",
"default": 20,
"description": "Cigarettes per pack",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute lime or sulfur amount to shift soil pH to a target. Use for gardening. Inputs: current pH, target pH, area mยฒ. Returns amendment type and kg/mยฒ. See list_bundles for related 'astronomie-nature' calculators.
| Argument | Type | Description |
|---|---|---|
| area_m2* | number | Garden area mยฒ |
| target_ph* | number | Target pH |
| current_ph* | number | Current soil pH |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"current_ph",
"target_ph",
"area_m2"
],
"properties": {
"area_m2": {
"type": "number",
"minimum": 0,
"description": "Garden area mยฒ"
},
"target_ph": {
"type": "number",
"maximum": 8,
"minimum": 4,
"description": "Target pH"
},
"current_ph": {
"type": "number",
"maximum": 9,
"minimum": 3,
"description": "Current soil pH"
}
},
"additionalProperties": false
}Estimate solar panel daily and yearly energy output by location and system size. Use for solar installation sizing. Inputs: kW capacity, latitude, panel orientation, shading %. Returns kWh/day and kWh/year. See list_bundles for related 'energie' calculators.
| Argument | Type | Description |
|---|---|---|
| area_m2 | number | Panel surface area in m2 (optional, informational) |
| panel_watt_peak* | number | Total peak power of the installation in Watts (Wp) |
| hours_sun_per_day | number | Average peak sun hours per day (default 4) |
| efficiency_loss_pct | number | System efficiency loss percentage (default 15%) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"panel_watt_peak"
],
"properties": {
"area_m2": {
"type": "number",
"description": "Panel surface area in m2 (optional, informational)",
"exclusiveMinimum": 0
},
"panel_watt_peak": {
"type": "number",
"description": "Total peak power of the installation in Watts (Wp)",
"exclusiveMinimum": 0
},
"hours_sun_per_day": {
"type": "number",
"default": 4,
"description": "Average peak sun hours per day (default 4)",
"exclusiveMinimum": 0
},
"efficiency_loss_pct": {
"type": "number",
"default": 15,
"maximum": 50,
"minimum": 0,
"description": "System efficiency loss percentage (default 15%)"
}
},
"additionalProperties": false
}Compute solar panel return on investment over their lifetime. Use for energy audit. Inputs: install cost, kW capacity, location production, kWh price. Returns ROI years and lifetime savings. See list_bundles for related 'energie' calculators.
| Argument | Type | Description |
|---|---|---|
| price_kwh | number | Electricity price EUR/kWh |
| annual_kwh* | number | Annual production kWh |
| system_cost* | number | Total system cost EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"system_cost",
"annual_kwh"
],
"properties": {
"price_kwh": {
"type": "number",
"default": 0.25,
"minimum": 0,
"description": "Electricity price EUR/kWh"
},
"annual_kwh": {
"type": "number",
"minimum": 0,
"description": "Annual production kWh"
},
"system_cost": {
"type": "number",
"minimum": 0,
"description": "Total system cost EUR"
}
},
"additionalProperties": false
}Compute lab solution dilution C1ยทV1=C2ยทV2. Use for stock-to-working solution prep. Inputs: stock concentration, target concentration, target volume. Returns stock volume and diluent volume. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| c1* | number | Initial concentration mol/L |
| c2* | number | Target concentration mol/L |
| v1_ml* | number | Initial volume mL |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"c1",
"v1_ml",
"c2"
],
"properties": {
"c1": {
"type": "number",
"minimum": 0,
"description": "Initial concentration mol/L"
},
"c2": {
"type": "number",
"minimum": 0,
"description": "Target concentration mol/L"
},
"v1_ml": {
"type": "number",
"minimum": 0,
"description": "Initial volume mL"
}
},
"additionalProperties": false
}Solve speed/distance/time โ provide any 2 of 3 values to compute the missing one. Returns: {error}. See list_bundles for related 'sport' calculators.
| Argument | Type | Description |
|---|---|---|
| speed | number | Speed in km/h |
| distance | number | Distance in kilometers |
| time_minutes | number | Time in minutes |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"speed": {
"type": "number",
"minimum": 0,
"description": "Speed in km/h"
},
"distance": {
"type": "number",
"minimum": 0,
"description": "Distance in kilometers"
},
"time_minutes": {
"type": "number",
"minimum": 0,
"description": "Time in minutes"
}
},
"additionalProperties": false
}Compute speed of sound in air at a given temperature. Use for physics or audio engineering. Formula: c=331.3+0.606ยทT_C. Inputs: temperature ยฐC. Returns speed in m/s. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| temperature_c* | number | Celsius |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"temperature_c"
],
"properties": {
"temperature_c": {
"type": "number",
"minimum": -273,
"description": "Celsius"
}
},
"additionalProperties": false
}Compute sphere volume V=(4/3)ฯrยณ and surface area A=4ฯrยฒ. Use for ball, tank, or astronomy problems. Inputs: radius. Returns volume and area. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| radius* | number | Radius |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"radius"
],
"properties": {
"radius": {
"type": "number",
"minimum": 0,
"description": "Radius"
}
},
"additionalProperties": false
}Compute spring constant k from Hooke's law F=kยทx. Use for physics or mechanical design. Inputs: force N, displacement m. Returns spring constant N/m. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| force_n* | number | Applied force N |
| displacement_m* | number | Displacement m |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"force_n",
"displacement_m"
],
"properties": {
"force_n": {
"type": "number",
"description": "Applied force N"
},
"displacement_m": {
"type": "number",
"minimum": 0.001,
"description": "Displacement m"
}
},
"additionalProperties": false
}Calculate staircase dimensions using Blondel formula. Returns: {step_height_cm, giron_cm, blondel, blondel_ok}. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| total_height_cm* | number | Total height cm |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"total_height_cm"
],
"properties": {
"total_height_cm": {
"type": "number",
"minimum": 10,
"description": "Total height cm"
}
},
"additionalProperties": false
}Calculate staking rewards with optional compounding for a given APY and duration. Returns: {initial_amount}. See list_bundles for related 'crypto' calculators.
| Argument | Type | Description |
|---|---|---|
| amount* | number | Initial staking amount in coins or fiat |
| apy_pct* | number | Annual Percentage Yield in percent |
| compounding* | string | Compounding frequency |
| duration_days* | number | Staking duration in days |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"amount",
"apy_pct",
"duration_days",
"compounding"
],
"properties": {
"amount": {
"type": "number",
"minimum": 0,
"description": "Initial staking amount in coins or fiat"
},
"apy_pct": {
"type": "number",
"minimum": 0,
"description": "Annual Percentage Yield in percent"
},
"compounding": {
"enum": [
"daily",
"weekly",
"monthly",
"none"
],
"type": "string",
"description": "Compounding frequency"
},
"duration_days": {
"type": "number",
"minimum": 1,
"description": "Staking duration in days"
}
},
"additionalProperties": false
}Compute UK Stamp Duty Land Tax (SDLT). Use for UK home buyers. Inputs: property price, first-time-buyer flag, second-home flag. Returns SDLT due and effective rate. See list_bundles for related 'finance-uk' calculators.
| Argument | Type | Description |
|---|---|---|
| price* | number | Property purchase price in GBP |
| first_time_buyer | boolean | Whether buyer is a first-time buyer (default false) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"price"
],
"properties": {
"price": {
"type": "number",
"description": "Property purchase price in GBP",
"exclusiveMinimum": 0
},
"first_time_buyer": {
"type": "boolean",
"default": false,
"description": "Whether buyer is a first-time buyer (default false)"
}
},
"additionalProperties": false
}Calculate star distance from apparent and absolute magnitude. See list_bundles for related 'astronomie-nature' calculators.
| Argument | Type | Description |
|---|---|---|
| absolute_magnitude* | number | Absolute magnitude (M) |
| apparent_magnitude* | number | Apparent magnitude (m) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"apparent_magnitude",
"absolute_magnitude"
],
"properties": {
"absolute_magnitude": {
"type": "number",
"description": "Absolute magnitude (M)"
},
"apparent_magnitude": {
"type": "number",
"description": "Apparent magnitude (m)"
}
},
"additionalProperties": false
}Calculate descriptive statistics: mean, median, mode, std dev, quartiles. Returns: {count, std_deviation, min, max, range, iqr}. See list_bundles for related 'education' calculators.
| Argument | Type | Description |
|---|---|---|
| values* | array | Array of numbers |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"values"
],
"properties": {
"values": {
"type": "array",
"items": {
"type": "number"
},
"minItems": 1,
"description": "Array of numbers"
}
},
"additionalProperties": false
}Calculate guitar or bass string tension in pounds, kilograms and Newtons. See list_bundles for related 'musique' calculators.
| Argument | Type | Description |
|---|---|---|
| frequency_hz* | number | Target tuning frequency in Hz (e.g. 329.63 for E4) |
| gauge_inches* | number | String gauge in inches (e.g. 0.010 for a light gauge high E) |
| scale_length_inches* | number | Instrument scale length in inches (e.g. 25.5 for Fender Stratocaster) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"scale_length_inches",
"frequency_hz",
"gauge_inches"
],
"properties": {
"frequency_hz": {
"type": "number",
"minimum": 20,
"description": "Target tuning frequency in Hz (e.g. 329.63 for E4)"
},
"gauge_inches": {
"type": "number",
"maximum": 0.08,
"minimum": 0.006,
"description": "String gauge in inches (e.g. 0.010 for a light gauge high E)"
},
"scale_length_inches": {
"type": "number",
"maximum": 40,
"minimum": 20,
"description": "Instrument scale length in inches (e.g. 25.5 for Fender Stratocaster)"
}
},
"additionalProperties": false
}Compute student loan repayment schedule and total interest. Use for graduates planning repayment. Inputs: loan amount, interest rate %, term years. Returns monthly payment, total paid, total interest. See list_bundles for related 'education' calculators.
| Argument | Type | Description |
|---|---|---|
| annual_rate* | number | Annual interest rate percent |
| loan_amount* | number | Loan amount EUR |
| monthly_payment* | number | Monthly payment EUR |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"loan_amount",
"annual_rate",
"monthly_payment"
],
"properties": {
"annual_rate": {
"type": "number",
"minimum": 0,
"description": "Annual interest rate percent"
},
"loan_amount": {
"type": "number",
"description": "Loan amount EUR",
"exclusiveMinimum": 0
},
"monthly_payment": {
"type": "number",
"description": "Monthly payment EUR",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Generate a study schedule based on exam date and topics. Returns: {total_hours_needed, daily_hours_needed, feasible}. See list_bundles for related 'education' calculators.
| Argument | Type | Description |
|---|---|---|
| exam_date* | string | Exam date YYYY-MM-DD |
| topics_count* | integer | Number of topics to study |
| hours_per_topic* | number | Hours needed per topic |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"exam_date",
"topics_count",
"hours_per_topic"
],
"properties": {
"exam_date": {
"type": "string",
"description": "Exam date YYYY-MM-DD"
},
"topics_count": {
"type": "integer",
"description": "Number of topics to study",
"exclusiveMinimum": 0
},
"hours_per_topic": {
"type": "number",
"description": "Hours needed per topic",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate safe sun exposure time based on UV index and Fitzpatrick skin type. Returns: {skin_description, safe_exposure_minutes, with_spf30_minutes, uv_risk_level, recommendations}. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| uv_index* | number | UV index at destination (1โ11+) |
| skin_type* | string | Fitzpatrick skin type: 1=very fair, 6=very dark |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"uv_index",
"skin_type"
],
"properties": {
"uv_index": {
"type": "number",
"maximum": 20,
"minimum": 1,
"description": "UV index at destination (1โ11+)"
},
"skin_type": {
"enum": [
"1",
"2",
"3",
"4",
"5",
"6"
],
"type": "string",
"description": "Fitzpatrick skin type: 1=very fair, 6=very dark"
}
},
"additionalProperties": false
}Estimate sunrise/sunset times for a latitude on a given day of year. Use for astronomy or outdoor planning. Inputs: latitude, day of year. Returns sunrise/sunset hours, daylight duration. See list_bundles for related 'astronomie-nature' calculators.
| Argument | Type | Description |
|---|---|---|
| latitude* | number | Latitude |
| day_of_year* | number | Day of year (1-366) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"latitude",
"day_of_year"
],
"properties": {
"latitude": {
"type": "number",
"maximum": 90,
"minimum": -90,
"description": "Latitude"
},
"day_of_year": {
"type": "number",
"maximum": 366,
"minimum": 1,
"description": "Day of year (1-366)"
}
},
"additionalProperties": false
}Approximate sunrise and sunset times based on latitude and day of year. Returns: {sunrise_solar_time, sunset_solar_time, day_length_hours}. See list_bundles for related 'astronomie-nature' calculators.
| Argument | Type | Description |
|---|---|---|
| latitude* | number | Latitude in degrees |
| day_of_year* | integer | Day of year (1-365) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"latitude",
"day_of_year"
],
"properties": {
"latitude": {
"type": "number",
"maximum": 90,
"minimum": -90,
"description": "Latitude in degrees"
},
"day_of_year": {
"type": "integer",
"maximum": 365,
"minimum": 1,
"description": "Day of year (1-365)"
}
},
"additionalProperties": false
}Compute when to reapply sunscreen based on SPF, activity, and water exposure. Use for sun safety. Inputs: SPF, skin type, activity (sweat/swim), UV index. Returns next reapply time. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| spf* | number | SPF factor |
| uv_index* | number | Current UV index |
| skin_type* | number | Fitzpatrick skin type 1-6 |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"spf",
"skin_type",
"uv_index"
],
"properties": {
"spf": {
"type": "number",
"maximum": 100,
"minimum": 2,
"description": "SPF factor"
},
"uv_index": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "Current UV index"
},
"skin_type": {
"type": "number",
"maximum": 6,
"minimum": 1,
"description": "Fitzpatrick skin type 1-6"
}
},
"additionalProperties": false
}Calculate Carrez law surface area (French legal measurement). Returns: {carrez_surface_m2, total_surface_m2, excluded_m2, included_rooms, excluded_rooms, note}. See list_bundles for related 'immobilier' calculators.
| Argument | Type | Description |
|---|---|---|
| rooms* | array | List of rooms with area and ceiling height |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"rooms"
],
"properties": {
"rooms": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"area_m2",
"ceiling_height_m"
],
"properties": {
"name": {
"type": "string",
"description": "Room name"
},
"area_m2": {
"type": "number",
"description": "Room area in m2",
"exclusiveMinimum": 0
},
"ceiling_height_m": {
"type": "number",
"description": "Ceiling height in meters",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
},
"description": "List of rooms with area and ceiling height"
}
},
"additionalProperties": false
}Calculate swimming pace per 100m and SWOLF efficiency estimate. Returns: {pace_per_100m_min, pace_formatted, swolf_estimate}. See list_bundles for related 'sport' calculators.
| Argument | Type | Description |
|---|---|---|
| distance_m* | number | Distance swum in meters |
| time_minutes* | number | Total swim time in minutes |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"distance_m",
"time_minutes"
],
"properties": {
"distance_m": {
"type": "number",
"minimum": 1,
"description": "Distance swum in meters"
},
"time_minutes": {
"type": "number",
"minimum": 0.1,
"description": "Total swim time in minutes"
}
},
"additionalProperties": false
}Calculate Swiss income tax โ federal + estimated cantonal tax. Returns: {income, federal_tax, federal_marginal_rate_pct, cantonal_tax_estimate, cantonal_rate_pct, effective_rate_pct, ...}. See list_bundles for related 'finance-suisse' calculators.
| Argument | Type | Description |
|---|---|---|
| canton | string | Canton of residence |
| income* | number | Annual taxable income in CHF |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"income"
],
"properties": {
"canton": {
"enum": [
"geneve",
"zurich",
"vaud",
"berne"
],
"type": "string",
"default": "geneve",
"description": "Canton of residence"
},
"income": {
"type": "number",
"minimum": 0,
"description": "Annual taxable income in CHF"
}
},
"additionalProperties": false
}Calculate Swiss occupational pension (LPP / 2e pilier) contributions by age bracket. Returns: {eligible, note}. See list_bundles for related 'finance-suisse' calculators.
| Argument | Type | Description |
|---|---|---|
| age* | integer | Age of employee |
| gross_annual* | number | Annual gross salary in CHF |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"gross_annual",
"age"
],
"properties": {
"age": {
"type": "integer",
"maximum": 70,
"minimum": 17,
"description": "Age of employee"
},
"gross_annual": {
"type": "number",
"minimum": 0,
"description": "Annual gross salary in CHF"
}
},
"additionalProperties": false
}Calculate Swiss pillar 3a tax savings (3e pilier lie). Returns: {annual_contribution, net_cost_after_saving, max_employee_2026, max_self_employed_2026}. See list_bundles for related 'finance-suisse' calculators.
| Argument | Type | Description |
|---|---|---|
| marginal_tax_rate* | number | Marginal income tax rate in % (federal + cantonal combined) |
| annual_contribution* | number | Annual contribution to pillar 3a in CHF (max 7056 for employees, 35280 for self-employed) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"annual_contribution",
"marginal_tax_rate"
],
"properties": {
"marginal_tax_rate": {
"type": "number",
"maximum": 60,
"minimum": 0,
"description": "Marginal income tax rate in % (federal + cantonal combined)"
},
"annual_contribution": {
"type": "number",
"minimum": 0,
"description": "Annual contribution to pillar 3a in CHF (max 7056 for employees, 35280 for self-employed)"
}
},
"additionalProperties": false
}Convert Swiss gross monthly salary to estimated net salary after employee social contributions (AVS/AI/APG 5.3% uncapped, AC 1.1% up to 148,200/year, LPP employee share by age when age is given). Income tax and LAMal health insurance are not withheld. Same engine as /api/v1/salaire-net?pays=ch. Returns: {gross_monthly, avs_ai_apg_5_3pct, ac_chomage_1_1pct, lpp_2e_pilier_10pct (LPP employee share, CHF/month), lamal_health_fixed (0), net_monthly, ...}. See list_bundles for related 'finance-suisse' calculators.
| Argument | Type | Description |
|---|---|---|
| age | integer | Optional age: adds the LPP employee contribution (ages 25-65); omitted = LPP not included |
| gross_monthly* | number | Gross monthly salary in CHF |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"gross_monthly"
],
"properties": {
"age": {
"type": "integer",
"maximum": 70,
"minimum": 17,
"description": "Optional age: adds the LPP employee contribution (ages 25-65); omitted = LPP not included"
},
"gross_monthly": {
"type": "number",
"minimum": 0,
"description": "Gross monthly salary in CHF"
}
},
"additionalProperties": false
}Compute Swiss VAT (TVA/MWST) โ convert between net (HT) and gross (TTC). Use for invoicing or expense reimbursements in Switzerland. Inputs: amount, rate (8.1, 3.8, 2.6, 0). Returns HT, TTC, and tax amount. See list_bundles for related 'finance-suisse' calculators.
| Argument | Type | Description |
|---|---|---|
| mode | string | Input mode: ht=before tax, ttc=after tax |
| rate | string | VAT rate: 2.6% (reduced), 3.8% (hotel), 8.1% (standard) |
| amount* | number | Amount in CHF |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"amount"
],
"properties": {
"mode": {
"enum": [
"ht",
"ttc"
],
"type": "string",
"default": "ht",
"description": "Input mode: ht=before tax, ttc=after tax"
},
"rate": {
"enum": [
"2.6",
"3.8",
"8.1"
],
"type": "string",
"default": "8.1",
"description": "VAT rate: 2.6% (reduced), 3.8% (hotel), 8.1% (standard)"
},
"amount": {
"type": "number",
"minimum": 0,
"description": "Amount in CHF"
}
},
"additionalProperties": false
}Calculate Swiss wealth tax (impot sur la fortune) by canton. Returns: {net_wealth, tax_free_threshold, taxable_wealth, wealth_tax_rate_pct, annual_wealth_tax, note}. See list_bundles for related 'finance-suisse' calculators.
| Argument | Type | Description |
|---|---|---|
| canton | string | Canton of residence |
| net_wealth* | number | Net wealth in CHF (assets minus debts) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"net_wealth"
],
"properties": {
"canton": {
"enum": [
"geneve",
"zurich",
"vaud",
"berne"
],
"type": "string",
"default": "geneve",
"description": "Canton of residence"
},
"net_wealth": {
"type": "number",
"minimum": 0,
"description": "Net wealth in CHF (assets minus debts)"
}
},
"additionalProperties": false
}Calculate Total Daily Energy Expenditure from BMR and activity level. Returns: {tdee_kcal}. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| bmr* | number | Basal Metabolic Rate in kcal |
| activity_level* | string | Activity level |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"bmr",
"activity_level"
],
"properties": {
"bmr": {
"type": "number",
"minimum": 1,
"description": "Basal Metabolic Rate in kcal"
},
"activity_level": {
"enum": [
"sedentary",
"light",
"moderate",
"active",
"very_active"
],
"type": "string",
"description": "Activity level"
}
},
"additionalProperties": false
}Compute telescope magnification, exit pupil, and field of view. Use for astronomy hobbyists. Inputs: telescope focal length, eyepiece focal length, eyepiece field of view. Returns magnification and exit pupil. See list_bundles for related 'astronomie-nature' calculators.
| Argument | Type | Description |
|---|---|---|
| eyepiece_mm* | number | Eyepiece focal length mm |
| focal_length_mm* | number | Telescope focal length mm |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"focal_length_mm",
"eyepiece_mm"
],
"properties": {
"eyepiece_mm": {
"type": "number",
"description": "Eyepiece focal length mm",
"exclusiveMinimum": 0
},
"focal_length_mm": {
"type": "number",
"description": "Telescope focal length mm",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute grout quantity for a tiling job. Use for renovation budget. Inputs: surface mยฒ, tile size, joint width. Returns grout kg needed. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| area_m2* | number | Area mยฒ |
| tile_cm* | number | Tile size cm |
| depth_mm | number | Joint depth mm |
| joint_mm | number | Joint width mm |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"area_m2",
"tile_cm"
],
"properties": {
"area_m2": {
"type": "number",
"minimum": 0,
"description": "Area mยฒ"
},
"tile_cm": {
"type": "number",
"minimum": 1,
"description": "Tile size cm"
},
"depth_mm": {
"type": "number",
"default": 5,
"description": "Joint depth mm"
},
"joint_mm": {
"type": "number",
"default": 3,
"description": "Joint width mm"
}
},
"additionalProperties": false
}Compute tiles needed including a waste margin (default 10%). Use for floor or wall tiling. Inputs: surface mยฒ, tile size, waste %. Returns tile count and surface ordered. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| area_m2* | number | Area mยฒ |
| tile_l_cm* | number | Tile length cm |
| tile_w_cm* | number | Tile width cm |
| waste_pct | number | Waste % |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"area_m2",
"tile_w_cm",
"tile_l_cm"
],
"properties": {
"area_m2": {
"type": "number",
"minimum": 0.1,
"description": "Area mยฒ"
},
"tile_l_cm": {
"type": "number",
"minimum": 1,
"description": "Tile length cm"
},
"tile_w_cm": {
"type": "number",
"minimum": 1,
"description": "Tile width cm"
},
"waste_pct": {
"type": "number",
"default": 10,
"description": "Waste %"
}
},
"additionalProperties": false
}Compute the difference between two times or dates in seconds, minutes, hours, days. Use for project tracking, age, or scheduling. Inputs: start datetime, end datetime. Returns delta in multiple units. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| city1* | string | First city |
| city2* | string | Second city |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"city1",
"city2"
],
"properties": {
"city1": {
"enum": [
"paris",
"london",
"new_york",
"los_angeles",
"tokyo",
"sydney",
"dubai",
"mumbai",
"beijing",
"sao_paulo"
],
"type": "string",
"description": "First city"
},
"city2": {
"enum": [
"paris",
"london",
"new_york",
"los_angeles",
"tokyo",
"sydney",
"dubai",
"mumbai",
"beijing",
"sao_paulo"
],
"type": "string",
"description": "Second city"
}
},
"additionalProperties": false
}Calculate total beats and duration for a musical passage in bars. Returns: {time_signature}. See list_bundles for related 'musique' calculators.
| Argument | Type | Description |
|---|---|---|
| bpm* | number | Tempo in beats per minute |
| bars* | number | Number of bars |
| beat_value | number | Note value of one beat (denominator of time signature, e.g. 4 for quarter note) |
| beats_per_bar | number | Number of beats per bar (numerator of time signature) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"bpm",
"bars"
],
"properties": {
"bpm": {
"type": "number",
"maximum": 400,
"minimum": 20,
"description": "Tempo in beats per minute"
},
"bars": {
"type": "number",
"minimum": 1,
"description": "Number of bars"
},
"beat_value": {
"type": "number",
"default": 4,
"maximum": 32,
"minimum": 1,
"description": "Note value of one beat (denominator of time signature, e.g. 4 for quarter note)"
},
"beats_per_bar": {
"type": "number",
"default": 4,
"maximum": 32,
"minimum": 1,
"description": "Number of beats per bar (numerator of time signature)"
}
},
"additionalProperties": false
}Compute the time difference (hours) between two timezones. Use for international meetings. Inputs: timezone A, timezone B. Returns delta hours and current local times. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| city1* | string | First city |
| city2* | string | Second city |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"city1",
"city2"
],
"properties": {
"city1": {
"enum": [
"paris",
"london",
"new_york",
"los_angeles",
"tokyo",
"sydney",
"dubai",
"beijing",
"moscow",
"sao_paulo"
],
"type": "string",
"description": "First city"
},
"city2": {
"enum": [
"paris",
"london",
"new_york",
"los_angeles",
"tokyo",
"sydney",
"dubai",
"beijing",
"moscow",
"sao_paulo"
],
"type": "string",
"description": "Second city"
}
},
"additionalProperties": false
}Convert a time between two UTC offsets accounting for date rollover. Use for international meetings. Inputs: time, from-utc, to-utc. Returns local time and date offset. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| time* | string | Time to convert HH:MM |
| to_offset* | number | Target UTC offset hours |
| from_offset* | number | Source UTC offset hours (e.g. 1 for UTC+1) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"time",
"from_offset",
"to_offset"
],
"properties": {
"time": {
"type": "string",
"description": "Time to convert HH:MM"
},
"to_offset": {
"type": "number",
"maximum": 14,
"minimum": -12,
"description": "Target UTC offset hours"
},
"from_offset": {
"type": "number",
"maximum": 14,
"minimum": -12,
"description": "Source UTC offset hours (e.g. 1 for UTC+1)"
}
},
"additionalProperties": false
}Compute current UTC offset for a timezone, accounting for DST. Use for scheduling and date math. Inputs: timezone (IANA name). Returns UTC offset and DST status. See list_bundles for related 'temps-rh' calculators.
| Argument | Type | Description |
|---|---|---|
| to_zone* | string | Target time zone |
| from_zone* | string | Source time zone |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"from_zone",
"to_zone"
],
"properties": {
"to_zone": {
"enum": [
"UTC",
"CET",
"EST",
"PST",
"CST",
"JST",
"IST",
"AEST",
"GMT"
],
"type": "string",
"description": "Target time zone"
},
"from_zone": {
"enum": [
"UTC",
"CET",
"EST",
"PST",
"CST",
"JST",
"IST",
"AEST",
"GMT"
],
"type": "string",
"description": "Source time zone"
}
},
"additionalProperties": false
}Compute restaurant tip and per-person split. Use for shared meals. Inputs: bill, tip %, people count. Returns tip, total, per-person share. See list_bundles for related 'vie-quotidienne' calculators.
| Argument | Type | Description |
|---|---|---|
| bill* | number | Bill amount |
| split | integer | Number of people splitting |
| tip_pct | number | Tip percentage |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"bill"
],
"properties": {
"bill": {
"type": "number",
"minimum": 0,
"description": "Bill amount"
},
"split": {
"type": "integer",
"default": 1,
"minimum": 1,
"description": "Number of people splitting"
},
"tip_pct": {
"type": "number",
"default": 15,
"maximum": 100,
"minimum": 0,
"description": "Tip percentage"
}
},
"additionalProperties": false
}Calculate tip and per-person amount for a restaurant bill. See list_bundles for related 'vie-quotidienne' calculators.
| Argument | Type | Description |
|---|---|---|
| tip_pct* | number | Tip percentage |
| num_people* | integer | Number of people splitting |
| bill_amount* | number | Total bill amount |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"bill_amount",
"tip_pct",
"num_people"
],
"properties": {
"tip_pct": {
"type": "number",
"maximum": 100,
"minimum": 0,
"description": "Tip percentage"
},
"num_people": {
"type": "integer",
"description": "Number of people splitting",
"exclusiveMinimum": 0
},
"bill_amount": {
"type": "number",
"description": "Total bill amount",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Compute restaurant tip following local custom (US 18-22%, FR included, JP no tip, etc.). Use when traveling. Inputs: bill, country. Returns recommended tip and total. See list_bundles for related 'vie-quotidienne' calculators.
| Argument | Type | Description |
|---|---|---|
| bill* | number | Bill |
| country* | string | Country |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"bill",
"country"
],
"properties": {
"bill": {
"type": "number",
"minimum": 0,
"description": "Bill"
},
"country": {
"enum": [
"US",
"FR",
"UK",
"JP",
"DE",
"BR",
"AU"
],
"type": "string",
"description": "Country"
}
},
"additionalProperties": false
}Compute torus volume V=2ฯยฒRrยฒ and surface area. Use for ring-shaped objects (donuts, inner tubes). Inputs: major radius R, minor radius r. Returns volume and area. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| major_r* | number | Major radius (center to tube center) |
| minor_r* | number | Minor radius (tube radius) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"major_r",
"minor_r"
],
"properties": {
"major_r": {
"type": "number",
"minimum": 0,
"description": "Major radius (center to tube center)"
},
"minor_r": {
"type": "number",
"minimum": 0,
"description": "Minor radius (tube radius)"
}
},
"additionalProperties": false
}Calculate 6 running training zones as speed ranges based on VMA. Returns: {vma_kmh}. See list_bundles for related 'sport' calculators.
| Argument | Type | Description |
|---|---|---|
| vma* | number | VMA (Maximal Aerobic Speed) in km/h |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"vma"
],
"properties": {
"vma": {
"type": "number",
"minimum": 5,
"description": "VMA (Maximal Aerobic Speed) in km/h"
}
},
"additionalProperties": false
}Estimate total trip budget by category (transport, accommodation, food, activities). Use for trip planning. Inputs: destination, days, traveler count, comfort level. Returns total and per-day breakdown. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| days* | integer | Number of travel days |
| travelers* | integer | Number of travelers |
| destination* | string | Destination region |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"destination",
"days",
"travelers"
],
"properties": {
"days": {
"type": "integer",
"maximum": 365,
"minimum": 1,
"description": "Number of travel days"
},
"travelers": {
"type": "integer",
"maximum": 20,
"minimum": 1,
"description": "Number of travelers"
},
"destination": {
"enum": [
"europe_west",
"europe_east",
"usa",
"asia_se",
"japan",
"australia",
"africa",
"south_america"
],
"type": "string",
"description": "Destination region"
}
},
"additionalProperties": false
}Calculate estimated travel insurance cost based on destination, duration, age and activities. Returns: {base_per_day_eur, activity_factor, estimated_premium_eur, coverage_tips}. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| age* | integer | Traveler age in years |
| activities* | string | Activity level: standard (city/beach), adventure (hiking/skiing), extreme (mountaineering/motorsport) |
| destination* | string | Travel destination zone |
| duration_days* | integer | Trip duration in days |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"destination",
"duration_days",
"age",
"activities"
],
"properties": {
"age": {
"type": "integer",
"maximum": 120,
"minimum": 0,
"description": "Traveler age in years"
},
"activities": {
"enum": [
"standard",
"adventure",
"extreme"
],
"type": "string",
"description": "Activity level: standard (city/beach), adventure (hiking/skiing), extreme (mountaineering/motorsport)"
},
"destination": {
"enum": [
"europe",
"usa",
"worldwide"
],
"type": "string",
"description": "Travel destination zone"
},
"duration_days": {
"type": "integer",
"maximum": 365,
"minimum": 1,
"description": "Trip duration in days"
}
},
"additionalProperties": false
}Estimate travel insurance cost based on trip cost, age, duration, destination. Use for trip planning. Inputs: trip cost, traveler age, days, region. Returns premium estimate. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| age* | integer | Traveler age |
| days* | integer | Trip duration days |
| destination* | string | Destination region |
| coverage_level* | string | Coverage level |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"destination",
"days",
"age",
"coverage_level"
],
"properties": {
"age": {
"type": "integer",
"maximum": 120,
"minimum": 1,
"description": "Traveler age"
},
"days": {
"type": "integer",
"description": "Trip duration days",
"exclusiveMinimum": 0
},
"destination": {
"enum": [
"europe",
"asia",
"africa",
"americas",
"oceania"
],
"type": "string",
"description": "Destination region"
},
"coverage_level": {
"enum": [
"basic",
"standard",
"premium"
],
"type": "string",
"description": "Coverage level"
}
},
"additionalProperties": false
}Compute triangle area from three side lengths using Heron's formula. Use when angles aren't known. Inputs: sides a, b, c. Returns area, perimeter, type (equilateral/isoceles/scalene). See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| a* | number | Side a |
| b* | number | Side b |
| c* | number | Side c |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"a",
"b",
"c"
],
"properties": {
"a": {
"type": "number",
"minimum": 0,
"description": "Side a"
},
"b": {
"type": "number",
"minimum": 0,
"description": "Side b"
},
"c": {
"type": "number",
"minimum": 0,
"description": "Side c"
}
},
"additionalProperties": false
}Compute sin, cos, tan and inverse functions in degrees or radians. Use for geometry, physics, navigation. Inputs: function, value, unit. Returns result and reciprocal. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| func* | string | Trig function |
| unit | string | Input angle unit |
| value* | number | Input value |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"func",
"value"
],
"properties": {
"func": {
"enum": [
"sin",
"cos",
"tan",
"asin",
"acos",
"atan"
],
"type": "string",
"description": "Trig function"
},
"unit": {
"enum": [
"degrees",
"radians"
],
"type": "string",
"default": "degrees",
"description": "Input angle unit"
},
"value": {
"type": "number",
"description": "Input value"
}
},
"additionalProperties": false
}Compute UK Council Tax based on property band and local authority rate. Use for UK residents and home buyers. Inputs: band (A-H), local authority. Returns annual and monthly council tax. See list_bundles for related 'finance-uk' calculators.
| Argument | Type | Description |
|---|---|---|
| band* | string | Council Tax band (A=lowest, H=highest) |
| region | string | Region |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"band"
],
"properties": {
"band": {
"enum": [
"A",
"B",
"C",
"D",
"E",
"F",
"G",
"H"
],
"type": "string",
"description": "Council Tax band (A=lowest, H=highest)"
},
"region": {
"enum": [
"england",
"scotland",
"wales"
],
"type": "string",
"default": "england",
"description": "Region"
}
},
"additionalProperties": false
}Calculate UK income tax for 2025/26 using HMRC progressive brackets with personal allowance taper. Returns: {gross_income, personal_allowance, taxable_income, income_tax, effective_rate_pct, marginal_rate_pct}. See list_bundles for related 'finance-uk' calculators.
| Argument | Type | Description |
|---|---|---|
| income* | number | Annual gross income in GBP |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"income"
],
"properties": {
"income": {
"type": "number",
"minimum": 0,
"description": "Annual gross income in GBP"
}
},
"additionalProperties": false
}Calculate UK National Insurance contributions (Class 1 employee) for 2025/26. Returns: {annual_salary, ni_annual, ni_monthly, effective_rate_pct}. See list_bundles for related 'finance-uk' calculators.
| Argument | Type | Description |
|---|---|---|
| annual_salary* | number | Annual gross salary in GBP |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"annual_salary"
],
"properties": {
"annual_salary": {
"type": "number",
"minimum": 0,
"description": "Annual gross salary in GBP"
}
},
"additionalProperties": false
}Calculate UK student loan repayments based on plan type and salary. Returns: {annual_salary, repayment_rate_pct, annual_repayment, monthly_repayment}. See list_bundles for related 'finance-uk' calculators.
| Argument | Type | Description |
|---|---|---|
| plan | string | Student loan plan: 1, 2, 4, 5, or postgrad |
| annual_salary* | number | Annual gross salary in GBP |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"annual_salary"
],
"properties": {
"plan": {
"enum": [
"1",
"2",
"4",
"5",
"postgrad"
],
"type": "string",
"default": "2",
"description": "Student loan plan: 1, 2, 4, 5, or postgrad"
},
"annual_salary": {
"type": "number",
"minimum": 0,
"description": "Annual gross salary in GBP"
}
},
"additionalProperties": false
}Calculate UK VAT โ convert between net (ex-VAT) and gross (inc-VAT) amounts. Returns: {amount_net, amount_gross, vat_amount, vat_rate_pct}. See list_bundles for related 'finance-uk' calculators.
| Argument | Type | Description |
|---|---|---|
| mode | string | Input mode: ht=net (ex-VAT), ttc=gross (inc-VAT) |
| rate | string | VAT rate: 0% (zero), 5% (reduced), 20% (standard) |
| amount* | number | Amount in GBP |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"amount"
],
"properties": {
"mode": {
"enum": [
"ht",
"ttc"
],
"type": "string",
"default": "ht",
"description": "Input mode: ht=net (ex-VAT), ttc=gross (inc-VAT)"
},
"rate": {
"enum": [
"0",
"5",
"20"
],
"type": "string",
"default": "20",
"description": "VAT rate: 0% (zero), 5% (reduced), 20% (standard)"
},
"amount": {
"type": "number",
"minimum": 0,
"description": "Amount in GBP"
}
},
"additionalProperties": false
}Estimate French unemployment benefit (ARE โ Aide au Retour a l'Emploi). Returns: {daily_ref_salary, daily_are, monthly_are_estimate, min_daily, max_daily_75pct_sjr}. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| daily_ref_salary* | number | Salaire Journalier de Reference (SJR) in euros โ typically last 12 months salary / 261 |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"daily_ref_salary"
],
"properties": {
"daily_ref_salary": {
"type": "number",
"minimum": 0,
"description": "Salaire Journalier de Reference (SJR) in euros โ typically last 12 months salary / 261"
}
},
"additionalProperties": false
}Compare unit prices across packages to find the best deal. Use for shopping. Inputs: list of {price, quantity, unit}. Returns price per unit and best buy. See list_bundles for related 'education' calculators.
| Argument | Type | Description |
|---|---|---|
| items* | array | Items to compare |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"items"
],
"properties": {
"items": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"price",
"quantity",
"unit"
],
"properties": {
"name": {
"type": "string"
},
"unit": {
"type": "string"
},
"price": {
"type": "number"
},
"quantity": {
"type": "number"
}
},
"additionalProperties": false
},
"minItems": 1,
"description": "Items to compare"
}
},
"additionalProperties": false
}Calculate US 401(k) contribution, employer match, and total retirement savings. Returns: {annual_salary, employee_contribution, employer_match, total_annual_contribution, catch_up_eligible, max_employee_limit}. See list_bundles for related 'finance-us' calculators.
| Argument | Type | Description |
|---|---|---|
| age | integer | Employee age (50+ enables catch-up contributions) |
| annual_salary* | number | Annual salary in USD |
| contribution_pct* | number | Employee contribution percentage (1-100) |
| employer_match_pct | number | Employer match percentage of employee contribution (default 50%) |
| employer_match_limit | number | Employer match cap as % of salary (default 6%) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"annual_salary",
"contribution_pct"
],
"properties": {
"age": {
"type": "integer",
"default": 40,
"maximum": 80,
"minimum": 18,
"description": "Employee age (50+ enables catch-up contributions)"
},
"annual_salary": {
"type": "number",
"minimum": 0,
"description": "Annual salary in USD"
},
"contribution_pct": {
"type": "number",
"maximum": 100,
"minimum": 1,
"description": "Employee contribution percentage (1-100)"
},
"employer_match_pct": {
"type": "number",
"default": 50,
"minimum": 0,
"description": "Employer match percentage of employee contribution (default 50%)"
},
"employer_match_limit": {
"type": "number",
"default": 6,
"minimum": 0,
"description": "Employer match cap as % of salary (default 6%)"
}
},
"additionalProperties": false
}Calculate US capital gains tax โ short-term (ordinary rates) or long-term (preferential rates). Returns: {tax, gain_type}. See list_bundles for related 'finance-us' calculators.
| Argument | Type | Description |
|---|---|---|
| sale_price* | number | Sale price in USD |
| filing_status | string | Filing status for rate thresholds |
| purchase_price* | number | Original purchase price in USD |
| holding_period_months* | number | Holding period in months |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"purchase_price",
"sale_price",
"holding_period_months"
],
"properties": {
"sale_price": {
"type": "number",
"minimum": 0,
"description": "Sale price in USD"
},
"filing_status": {
"enum": [
"single",
"married"
],
"type": "string",
"default": "single",
"description": "Filing status for rate thresholds"
},
"purchase_price": {
"type": "number",
"minimum": 0,
"description": "Original purchase price in USD"
},
"holding_period_months": {
"type": "number",
"minimum": 0,
"description": "Holding period in months"
}
},
"additionalProperties": false
}Calculate US Child Tax Credit for 2026 with phase-out based on AGI. Returns: {agi, base_credit, credit_reduction, final_credit}. See list_bundles for related 'finance-us' calculators.
| Argument | Type | Description |
|---|---|---|
| agi* | number | Adjusted Gross Income in USD |
| filing_status | string | Filing status |
| children_under_17* | integer | Number of qualifying children under age 17 |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"children_under_17",
"agi"
],
"properties": {
"agi": {
"type": "number",
"minimum": 0,
"description": "Adjusted Gross Income in USD"
},
"filing_status": {
"enum": [
"single",
"married"
],
"type": "string",
"default": "single",
"description": "Filing status"
},
"children_under_17": {
"type": "integer",
"minimum": 0,
"description": "Number of qualifying children under age 17"
}
},
"additionalProperties": false
}Calculate US federal income tax for 2026 using progressive brackets with standard deduction. Returns: {gross_income, standard_deduction, taxable_income, federal_tax, effective_rate_pct, marginal_rate_pct, ...}. See list_bundles for related 'finance-us' calculators.
| Argument | Type | Description |
|---|---|---|
| income* | number | Gross annual income in USD |
| filing_status | string | Filing status |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"income"
],
"properties": {
"income": {
"type": "number",
"minimum": 0,
"description": "Gross annual income in USD"
},
"filing_status": {
"enum": [
"single",
"married_joint",
"married_separate",
"head_of_household"
],
"type": "string",
"default": "single",
"description": "Filing status"
}
},
"additionalProperties": false
}Calculate US FICA taxes (Social Security + Medicare) employee share for 2026. Returns: {gross_annual, social_security_taxable, social_security_tax, medicare_base_tax, medicare_additional_tax, medicare_total, ...}. See list_bundles for related 'finance-us' calculators.
| Argument | Type | Description |
|---|---|---|
| gross_annual* | number | Gross annual salary in USD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"gross_annual"
],
"properties": {
"gross_annual": {
"type": "number",
"minimum": 0,
"description": "Gross annual salary in USD"
}
},
"additionalProperties": false
}Calculate US mortgage with PMI, property tax, and insurance estimates. Returns: {home_price, down_payment, loan_amount, monthly_pi, monthly_pmi, monthly_property_tax, ...}. See list_bundles for related 'finance-us' calculators.
| Argument | Type | Description |
|---|---|---|
| years | integer | Loan term in years (default 30) |
| home_price* | number | Home purchase price in USD |
| annual_rate* | number | Annual mortgage interest rate in % |
| down_payment_pct | number | Down payment percentage (default 20%) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"home_price",
"annual_rate"
],
"properties": {
"years": {
"type": "integer",
"default": 30,
"maximum": 50,
"minimum": 1,
"description": "Loan term in years (default 30)"
},
"home_price": {
"type": "number",
"minimum": 1,
"description": "Home purchase price in USD"
},
"annual_rate": {
"type": "number",
"maximum": 30,
"minimum": 0.01,
"description": "Annual mortgage interest rate in %"
},
"down_payment_pct": {
"type": "number",
"default": 20,
"maximum": 100,
"minimum": 0,
"description": "Down payment percentage (default 20%)"
}
},
"additionalProperties": false
}Estimate US bi-weekly net paycheck after federal/state withholding and FICA. Returns: {annual_salary, fica_biweekly, net_biweekly, net_annual_estimate}. See list_bundles for related 'finance-us' calculators.
| Argument | Type | Description |
|---|---|---|
| state | string | State for state income tax (TX/FL/WA have no state tax) |
| annual_salary* | number | Annual salary in USD |
| filing_status | string | Federal withholding filing status |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"annual_salary"
],
"properties": {
"state": {
"enum": [
"CA",
"TX",
"NY",
"FL",
"WA"
],
"type": "string",
"default": "TX",
"description": "State for state income tax (TX/FL/WA have no state tax)"
},
"annual_salary": {
"type": "number",
"minimum": 0,
"description": "Annual salary in USD"
},
"filing_status": {
"enum": [
"single",
"married"
],
"type": "string",
"default": "single",
"description": "Federal withholding filing status"
}
},
"additionalProperties": false
}Estimate annual US property tax by state using effective tax rates. Returns: {home_value, effective_rate_pct, annual_property_tax, monthly_property_tax}. See list_bundles for related 'finance-us' calculators.
| Argument | Type | Description |
|---|---|---|
| state | string | State (affects effective property tax rate) |
| home_value* | number | Assessed home value in USD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"home_value"
],
"properties": {
"state": {
"enum": [
"NJ",
"IL",
"TX",
"CA",
"FL",
"NY"
],
"type": "string",
"default": "TX",
"description": "State (affects effective property tax rate)"
},
"home_value": {
"type": "number",
"minimum": 0,
"description": "Assessed home value in USD"
}
},
"additionalProperties": false
}Compute US state income tax for a chosen state. Use for paycheck planning across states. Inputs: state, gross income, filing status. Returns state tax due and effective rate. See list_bundles for related 'finance-us' calculators.
| Argument | Type | Description |
|---|---|---|
| state* | string | US state |
| income* | number | Annual taxable income in USD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"income",
"state"
],
"properties": {
"state": {
"enum": [
"CA",
"NY",
"TX",
"FL",
"WA",
"IL",
"PA",
"OH"
],
"type": "string",
"description": "US state"
},
"income": {
"type": "number",
"minimum": 0,
"description": "Annual taxable income in USD"
}
},
"additionalProperties": false
}Calculate US student loan repayment under standard, graduated, or income-driven plans. Returns: {loan_balance}. See list_bundles for related 'finance-us' calculators.
| Argument | Type | Description |
|---|---|---|
| plan | string | Repayment plan |
| annual_rate* | number | Annual interest rate in % |
| loan_balance* | number | Outstanding loan balance in USD |
| annual_income | number | Annual income (required for income_driven plan) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"loan_balance",
"annual_rate"
],
"properties": {
"plan": {
"enum": [
"standard",
"graduated",
"income_driven"
],
"type": "string",
"default": "standard",
"description": "Repayment plan"
},
"annual_rate": {
"type": "number",
"maximum": 20,
"minimum": 0,
"description": "Annual interest rate in %"
},
"loan_balance": {
"type": "number",
"minimum": 0,
"description": "Outstanding loan balance in USD"
},
"annual_income": {
"type": "number",
"default": 50000,
"minimum": 0,
"description": "Annual income (required for income_driven plan)"
}
},
"additionalProperties": false
}Compute French paid vacation days earned (congรฉs payรฉs). Use for HR planning. Inputs: months worked, contract type. Returns days earned (2.5/month rule) and equivalent in working days. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| full_time | boolean | Full-time |
| months_worked* | number | Months worked |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"months_worked"
],
"properties": {
"full_time": {
"type": "boolean",
"default": true,
"description": "Full-time"
},
"months_worked": {
"type": "number",
"maximum": 12,
"minimum": 0,
"description": "Months worked"
}
},
"additionalProperties": false
}Compute optimal vacation usage by chaining bridge days with public holidays. Use for HR or worker planning. Inputs: vacation days, country, year. Returns best plan with day count. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| public_holidays_count* | integer | Number of public holidays near weekends |
| vacation_days_available* | integer | Annual vacation days available |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"public_holidays_count",
"vacation_days_available"
],
"properties": {
"public_holidays_count": {
"type": "integer",
"minimum": 0,
"description": "Number of public holidays near weekends"
},
"vacation_days_available": {
"type": "integer",
"description": "Annual vacation days available",
"exclusiveMinimum": 0
}
},
"additionalProperties": false
}Calculate VAT/GST/sales tax for any country with custom rate. Returns: {amount_before_tax, amount_after_tax, tax_amount, tax_rate}. See list_bundles for related 'finance-universal' calculators.
| Argument | Type | Description |
|---|---|---|
| mode | string | ht=before tax, ttc=after tax |
| rate* | number | Tax rate in % |
| amount* | number | Amount |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"amount",
"rate"
],
"properties": {
"mode": {
"enum": [
"ht",
"ttc"
],
"type": "string",
"default": "ht",
"description": "ht=before tax, ttc=after tax"
},
"rate": {
"type": "number",
"maximum": 100,
"minimum": 0,
"description": "Tax rate in %"
},
"amount": {
"type": "number",
"minimum": 0,
"description": "Amount"
}
},
"additionalProperties": false
}Reverse-VAT: extract the VAT and net price from a TTC amount. Use to back out tax from a gross invoice. Inputs: TTC amount, VAT rate %. Returns HT, VAT amount. See list_bundles for related 'finance-france' calculators.
| Argument | Type | Description |
|---|---|---|
| vat_rate | number | VAT rate % |
| amount_incl* | number | Amount including VAT |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"amount_incl"
],
"properties": {
"vat_rate": {
"type": "number",
"default": 20,
"minimum": 0,
"description": "VAT rate %"
},
"amount_incl": {
"type": "number",
"minimum": 0,
"description": "Amount including VAT"
}
},
"additionalProperties": false
}Calculate bicycle development in meters per pedal revolution. Returns: {gear_ratio, development_m, speed_at_90rpm_kmh}. See list_bundles for related 'sport' calculators.
| Argument | Type | Description |
|---|---|---|
| cog_teeth* | number | Number of teeth on the rear cog/sprocket |
| chainring_teeth* | number | Number of teeth on the front chainring |
| wheel_circumference_mm | number | Wheel circumference in mm (700c road default = 2105mm) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"chainring_teeth",
"cog_teeth"
],
"properties": {
"cog_teeth": {
"type": "number",
"minimum": 1,
"description": "Number of teeth on the rear cog/sprocket"
},
"chainring_teeth": {
"type": "number",
"minimum": 1,
"description": "Number of teeth on the front chainring"
},
"wheel_circumference_mm": {
"type": "number",
"default": 2105,
"minimum": 100,
"description": "Wheel circumference in mm (700c road default = 2105mm)"
}
},
"additionalProperties": false
}Compute VMA (Maximal Aerobic Speed) from a fitness test result. Use for runners building training plans. Inputs: test type (Cooper 12-min, Luc Lรฉger), result. Returns VMA km/h and zones. See list_bundles for related 'sport' calculators.
| Argument | Type | Description |
|---|---|---|
| test* | string | Test type: cooper (12min run), demi_cooper (6min run), vameval (final speed km/h) |
| result_value* | number | Distance in meters (cooper/demi_cooper) or final speed in km/h (vameval) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"test",
"result_value"
],
"properties": {
"test": {
"enum": [
"cooper",
"demi_cooper",
"vameval"
],
"type": "string",
"description": "Test type: cooper (12min run), demi_cooper (6min run), vameval (final speed km/h)"
},
"result_value": {
"type": "number",
"minimum": 1,
"description": "Distance in meters (cooper/demi_cooper) or final speed in km/h (vameval)"
}
},
"additionalProperties": false
}Estimate VO2max from VMA (maximal aerobic speed). Use for runners assessing cardio fitness. Formula: VO2max โ VMA ร 3.5. Inputs: VMA in km/h. Returns VO2max in mL/kg/min and fitness category. See list_bundles for related 'sport' calculators.
| Argument | Type | Description |
|---|---|---|
| vma* | number | VMA in km/h |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"vma"
],
"properties": {
"vma": {
"type": "number",
"minimum": 1,
"description": "VMA in km/h"
}
},
"additionalProperties": false
}Determine voltage adapter and plug type needed for a destination country. Use for international travel with electronics. Inputs: home country, destination, device wattage. Returns adapter type, voltage, plug shape. See list_bundles for related 'voyage' calculators.
| Argument | Type | Description |
|---|---|---|
| to_country* | string | Destination country |
| from_country* | string | Country of origin |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"from_country",
"to_country"
],
"properties": {
"to_country": {
"enum": [
"FR",
"US",
"UK",
"AU",
"JP",
"CH",
"BR",
"IN"
],
"type": "string",
"description": "Destination country"
},
"from_country": {
"enum": [
"FR",
"US",
"UK",
"AU",
"JP",
"CH",
"BR",
"IN"
],
"type": "string",
"description": "Country of origin"
}
},
"additionalProperties": false
}Compute volume for common 3D shapes (cube, cylinder, sphere, cone, prism). Use for geometry, packaging, or construction. Inputs: shape + dimensions. Returns volume in input-units cubed. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| shape* | string | Shape |
| width | number | Width |
| height | number | Height |
| length | number | Length/side |
| radius | number | Radius |
| base_area | number | Base area for prism/pyramid |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"shape"
],
"properties": {
"shape": {
"enum": [
"cube",
"cuboid",
"cylinder",
"cone",
"sphere",
"prism",
"pyramid"
],
"type": "string",
"description": "Shape"
},
"width": {
"type": "number",
"minimum": 0,
"description": "Width"
},
"height": {
"type": "number",
"minimum": 0,
"description": "Height"
},
"length": {
"type": "number",
"minimum": 0,
"description": "Length/side"
},
"radius": {
"type": "number",
"minimum": 0,
"description": "Radius"
},
"base_area": {
"type": "number",
"minimum": 0,
"description": "Base area for prism/pyramid"
}
},
"additionalProperties": false
}Calculate waist-to-hip ratio and cardiovascular risk level. Returns: {risk_threshold, cardiovascular_risk}. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| sex* | string | Biological sex |
| hip_cm* | number | Hip circumference in centimeters |
| waist_cm* | number | Waist circumference in centimeters |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"waist_cm",
"hip_cm",
"sex"
],
"properties": {
"sex": {
"enum": [
"male",
"female"
],
"type": "string",
"description": "Biological sex"
},
"hip_cm": {
"type": "number",
"minimum": 40,
"description": "Hip circumference in centimeters"
},
"waist_cm": {
"type": "number",
"minimum": 40,
"description": "Waist circumference in centimeters"
}
},
"additionalProperties": false
}Compute wallpaper rolls needed for a room with pattern repeat factor. Use for renovation budget. Inputs: room dimensions, roll size, pattern repeat. Returns roll count. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| height_m* | number | Height m |
| roll_width | number | Roll width m |
| perimeter_m* | number | Room perimeter m |
| roll_length | number | Roll length m |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"perimeter_m",
"height_m"
],
"properties": {
"height_m": {
"type": "number",
"minimum": 1,
"description": "Height m"
},
"roll_width": {
"type": "number",
"default": 0.53,
"description": "Roll width m"
},
"perimeter_m": {
"type": "number",
"minimum": 1,
"description": "Room perimeter m"
},
"roll_length": {
"type": "number",
"default": 10.05,
"description": "Roll length m"
}
},
"additionalProperties": false
}Compute wallpaper rolls for a room including pattern repeat and waste. Use for renovation. Inputs: walls mยฒ, roll dimensions, pattern repeat. Returns roll count and length needed. See list_bundles for related 'construction' calculators.
| Argument | Type | Description |
|---|---|---|
| height_m* | number | Wall height m |
| roll_width | number | Roll width m |
| perimeter_m* | number | Room perimeter m |
| roll_length | number | Roll length m |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"perimeter_m",
"height_m"
],
"properties": {
"height_m": {
"type": "number",
"minimum": 0,
"description": "Wall height m"
},
"roll_width": {
"type": "number",
"default": 0.53,
"description": "Roll width m"
},
"perimeter_m": {
"type": "number",
"minimum": 0,
"description": "Room perimeter m"
},
"roll_length": {
"type": "number",
"default": 10.05,
"description": "Roll length m"
}
},
"additionalProperties": false
}Compute water bill from cubic meters consumed and tariff bands. Use for household budget. Inputs: mยณ consumed, fixed fee, variable rate. Returns total bill. See list_bundles for related 'vie-quotidienne' calculators.
| Argument | Type | Description |
|---|---|---|
| cubic_meters* | number | Water consumption in mยณ |
| price_per_m3 | number | Price per mยณ (default 4.34 EUR โ France 2026) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"cubic_meters"
],
"properties": {
"cubic_meters": {
"type": "number",
"minimum": 0,
"description": "Water consumption in mยณ"
},
"price_per_m3": {
"type": "number",
"default": 4.34,
"minimum": 0,
"description": "Price per mยณ (default 4.34 EUR โ France 2026)"
}
},
"additionalProperties": false
}Calculate water hardness in French degrees from calcium and magnesium concentrations. Returns: {thresholds}. See list_bundles for related 'cuisine' calculators.
| Argument | Type | Description |
|---|---|---|
| calcium_mg_l* | number | |
| magnesium_mg_l* | number |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"calcium_mg_l",
"magnesium_mg_l"
],
"properties": {
"calcium_mg_l": {
"type": "number",
"minimum": 0
},
"magnesium_mg_l": {
"type": "number",
"minimum": 0
}
},
"additionalProperties": false
}Calculate recommended water heater tank size for a household. See list_bundles for related 'plomberie' calculators.
| Argument | Type | Description |
|---|---|---|
| usage* | string | Water usage level: low (30L/person), normal (50L/person), high (70L/person) |
| household_size* | number | Number of people in the household |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"household_size",
"usage"
],
"properties": {
"usage": {
"enum": [
"low",
"normal",
"high"
],
"type": "string",
"description": "Water usage level: low (30L/person), normal (50L/person), high (70L/person)"
},
"household_size": {
"type": "number",
"maximum": 10,
"minimum": 1,
"description": "Number of people in the household"
}
},
"additionalProperties": false
}Compute recommended daily water intake in liters by weight, activity, climate. Use for hydration planning. Inputs: weight kg, activity level, climate (temperate/hot). Returns L/day and glass count. See list_bundles for related 'sante' calculators.
| Argument | Type | Description |
|---|---|---|
| climate* | string | Climate |
| weight_kg* | number | Body weight kg |
| activity_level* | string | Activity level |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"weight_kg",
"activity_level",
"climate"
],
"properties": {
"climate": {
"enum": [
"temperate",
"hot"
],
"type": "string",
"description": "Climate"
},
"weight_kg": {
"type": "number",
"description": "Body weight kg",
"exclusiveMinimum": 0
},
"activity_level": {
"enum": [
"sedentary",
"moderate",
"active",
"very_active"
],
"type": "string",
"description": "Activity level"
}
},
"additionalProperties": false
}Calculate water pressure loss in a pipe circuit including friction and elevation. Returns: {equiv_length_m}. See list_bundles for related 'plomberie' calculators.
| Argument | Type | Description |
|---|---|---|
| diameter_mm* | number | Pipe internal diameter in millimeters |
| flow_rate_lpm* | number | Flow rate in liters per minute |
| pipe_length_m* | number | Pipe length in meters |
| fittings_count | number | Number of fittings and elbows (each adds ~0.5m equivalent length) |
| elevation_change_m | number | Elevation change in meters (positive = uphill, negative = downhill) |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"pipe_length_m",
"diameter_mm",
"flow_rate_lpm"
],
"properties": {
"diameter_mm": {
"type": "number",
"minimum": 6,
"description": "Pipe internal diameter in millimeters"
},
"flow_rate_lpm": {
"type": "number",
"minimum": 0.1,
"description": "Flow rate in liters per minute"
},
"pipe_length_m": {
"type": "number",
"minimum": 0.1,
"description": "Pipe length in meters"
},
"fittings_count": {
"type": "number",
"default": 5,
"minimum": 0,
"description": "Number of fittings and elbows (each adds ~0.5m equivalent length)"
},
"elevation_change_m": {
"type": "number",
"default": 0,
"description": "Elevation change in meters (positive = uphill, negative = downhill)"
}
},
"additionalProperties": false
}Compute wave frequency, wavelength, or period from any two. Formula: c=ฮปยทf. Use for physics or acoustics. Inputs: any 2 of (frequency Hz, wavelength m, speed m/s). Returns missing values. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| speed_ms | number | Wave speed m/s (343=sound) |
| frequency_hz* | number | Frequency in Hz |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"frequency_hz"
],
"properties": {
"speed_ms": {
"type": "number",
"default": 343,
"minimum": 0,
"description": "Wave speed m/s (343=sound)"
},
"frequency_hz": {
"type": "number",
"minimum": 0,
"description": "Frequency in Hz"
}
},
"additionalProperties": false
}Solve c=ฮปยทf for EM waves. Provide wavelength or frequency. Also returns photon energy E=hf. See list_bundles for related 'science' calculators.
| Argument | Type | Description |
|---|---|---|
| frequency_hz | number | Frequency in Hz |
| wavelength_m | number | Wavelength in meters |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"frequency_hz": {
"type": "number",
"description": "Frequency in Hz"
},
"wavelength_m": {
"type": "number",
"description": "Wavelength in meters"
}
},
"additionalProperties": false
}Calculate the perceived wind chill temperature (Environment Canada formula). Returns: {feels_colder_by_degrees}. See list_bundles for related 'astronomie-nature' calculators.
| Argument | Type | Description |
|---|---|---|
| temperature_c* | number | Air temperature in degrees C (must be 10C or below) |
| wind_speed_kmh* | number | Wind speed in km/h |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"temperature_c",
"wind_speed_kmh"
],
"properties": {
"temperature_c": {
"type": "number",
"maximum": 10,
"description": "Air temperature in degrees C (must be 10C or below)"
},
"wind_speed_kmh": {
"type": "number",
"minimum": 0,
"description": "Wind speed in km/h"
}
},
"additionalProperties": false
}Convert AWG wire gauge to diameter (mm) and resistance (ohms/m). Use for electrical projects. Inputs: AWG number. Returns diameter, area, resistance, max current. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| awg* | integer | AWG gauge number |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"awg"
],
"properties": {
"awg": {
"type": "integer",
"maximum": 40,
"minimum": 0,
"description": "AWG gauge number"
}
},
"additionalProperties": false
}Count working days Mon-Fri between two dates with optional French public holiday exclusion. Returns: {working_days, public_holidays_excluded}. See list_bundles for related 'temps-rh' calculators.
| Argument | Type | Description |
|---|---|---|
| country | string | Country for public holidays (FR supported) |
| end_date* | string | YYYY-MM-DD โ End date |
| start_date* | string | YYYY-MM-DD โ Start date |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"start_date",
"end_date"
],
"properties": {
"country": {
"enum": [
"FR",
"OTHER"
],
"type": "string",
"default": "FR",
"description": "Country for public holidays (FR supported)"
},
"end_date": {
"type": "string",
"description": "YYYY-MM-DD โ End date"
},
"start_date": {
"type": "string",
"description": "YYYY-MM-DD โ Start date"
}
},
"additionalProperties": false
}Compute z-score (standardized score) and percentile from a value, mean, and standard deviation. Use for statistics and outlier detection. Returns z, percentile, p-value. See list_bundles for related 'math' calculators.
| Argument | Type | Description |
|---|---|---|
| mean* | number | Population mean |
| value* | number | Observed value |
| std_dev* | number | Standard deviation |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"mean",
"std_dev"
],
"properties": {
"mean": {
"type": "number",
"description": "Population mean"
},
"value": {
"type": "number",
"description": "Observed value"
},
"std_dev": {
"type": "number",
"minimum": 0.001,
"description": "Standard deviation"
}
},
"additionalProperties": false
}Convert angle between degrees, radians, gradians, turns, arcminutes, arcseconds. Use for math, navigation, surveying. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| to* | string | Target unit |
| from* | string | Source unit |
| value* | number | Angle value |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from",
"to"
],
"properties": {
"to": {
"enum": [
"degree",
"radian",
"gradian",
"turn"
],
"type": "string",
"description": "Target unit"
},
"from": {
"enum": [
"degree",
"radian",
"gradian",
"turn"
],
"type": "string",
"description": "Source unit"
},
"value": {
"type": "number",
"description": "Angle value"
}
},
"additionalProperties": false
}Convert area between mยฒ, kmยฒ, ha, are, acre, ftยฒ, ydยฒ, cmยฒ. Use for real estate, agriculture, or construction. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| to* | string | Target unit |
| from* | string | Source unit |
| value* | number | Area value |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from",
"to"
],
"properties": {
"to": {
"enum": [
"m2",
"ha",
"acre",
"are",
"ft2",
"yd2",
"km2",
"cm2"
],
"type": "string",
"description": "Target unit"
},
"from": {
"enum": [
"m2",
"ha",
"acre",
"are",
"ft2",
"yd2",
"km2",
"cm2"
],
"type": "string",
"description": "Source unit"
},
"value": {
"type": "number",
"description": "Area value"
}
},
"additionalProperties": false
}Convert cooking measurements between ml, L, g, kg, cup, tbsp, tsp, fl_oz, oz. Use for recipe scaling and translating. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| to* | string | Target unit |
| from* | string | Source unit |
| value* | number | Quantity |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from",
"to"
],
"properties": {
"to": {
"enum": [
"cup",
"tbsp",
"tsp",
"ml",
"fl_oz",
"l"
],
"type": "string",
"description": "Target unit"
},
"from": {
"enum": [
"cup",
"tbsp",
"tsp",
"ml",
"fl_oz",
"l"
],
"type": "string",
"description": "Source unit"
},
"value": {
"type": "number",
"description": "Quantity"
}
},
"additionalProperties": false
}Convert between digital storage units (binary and decimal). Returns: {input}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| to* | string | Target unit |
| from* | string | Source unit |
| value* | number | Storage value |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from",
"to"
],
"properties": {
"to": {
"enum": [
"bit",
"byte",
"kb",
"mb",
"gb",
"tb",
"pb",
"kib",
"mib",
"gib"
],
"type": "string",
"description": "Target unit"
},
"from": {
"enum": [
"bit",
"byte",
"kb",
"mb",
"gb",
"tb",
"pb",
"kib",
"mib",
"gib"
],
"type": "string",
"description": "Source unit"
},
"value": {
"type": "number",
"description": "Storage value"
}
},
"additionalProperties": false
}Convert distance between metric (m, km, cm, mm) and imperial (in, ft, yd, mi) plus nautical miles. Use for travel, sport, or engineering. Inputs: value, from, to. Returns: {input, factor}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| to* | string | Target unit |
| from* | string | Source unit |
| value* | number | Distance value |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from",
"to"
],
"properties": {
"to": {
"enum": [
"km",
"mi",
"m",
"ft",
"in",
"cm",
"yd",
"nm",
"mm"
],
"type": "string",
"description": "Target unit"
},
"from": {
"enum": [
"km",
"mi",
"m",
"ft",
"in",
"cm",
"yd",
"nm",
"mm"
],
"type": "string",
"description": "Source unit"
},
"value": {
"type": "number",
"description": "Distance value"
}
},
"additionalProperties": false
}Convert energy between J, kJ, cal, kcal, kWh, BTU, eV, ft-lb. Use for nutrition, electricity, science. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| to* | string | Target unit |
| from* | string | Source unit |
| value* | number | Energy value |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from",
"to"
],
"properties": {
"to": {
"enum": [
"cal",
"kcal",
"j",
"kj",
"kwh",
"btu",
"ev"
],
"type": "string",
"description": "Target unit"
},
"from": {
"enum": [
"cal",
"kcal",
"j",
"kj",
"kwh",
"btu",
"ev"
],
"type": "string",
"description": "Source unit"
},
"value": {
"type": "number",
"description": "Energy value"
}
},
"additionalProperties": false
}Convert fuel consumption between L/100km, mpg-US, mpg-UK, km/L. Use for car comparison across regions. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| to* | string | Target unit |
| from* | string | Source unit |
| value* | number | Consumption value |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from",
"to"
],
"properties": {
"to": {
"enum": [
"l_100km",
"mpg_us",
"mpg_uk",
"km_l"
],
"type": "string",
"description": "Target unit"
},
"from": {
"enum": [
"l_100km",
"mpg_us",
"mpg_uk",
"km_l"
],
"type": "string",
"description": "Source unit"
},
"value": {
"type": "number",
"minimum": 0.01,
"description": "Consumption value"
}
},
"additionalProperties": false
}Convert pressure between Pa, kPa, MPa, bar, psi, atm, mmHg, mbar, torr. Use for engineering, tires, weather. Inputs: value, from-unit, to-unit. Returns: {input}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| to* | string | Target unit |
| from* | string | Source unit |
| value* | number | Pressure value |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from",
"to"
],
"properties": {
"to": {
"enum": [
"bar",
"psi",
"atm",
"pa",
"mmhg",
"kpa",
"mbar"
],
"type": "string",
"description": "Target unit"
},
"from": {
"enum": [
"bar",
"psi",
"atm",
"pa",
"mmhg",
"kpa",
"mbar"
],
"type": "string",
"description": "Source unit"
},
"value": {
"type": "number",
"description": "Pressure value"
}
},
"additionalProperties": false
}Convert shoe sizes between EU, US (men/women), and UK systems. Use for online shopping. Inputs: size, from, to, gender. Returns converted size. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| to* | string | Target system |
| from* | string | Source system |
| value* | number | Shoe size |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from",
"to"
],
"properties": {
"to": {
"enum": [
"eu",
"us_m",
"us_w",
"uk"
],
"type": "string",
"description": "Target system"
},
"from": {
"enum": [
"eu",
"us_m",
"us_w",
"uk"
],
"type": "string",
"description": "Source system"
},
"value": {
"type": "number",
"description": "Shoe size"
}
},
"additionalProperties": false
}Convert speed between km/h, mph, m/s, knots, ft/s. Use for travel, sport, or maritime/aviation. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| to* | string | Target unit |
| from* | string | Source unit |
| value* | number | Speed value |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from",
"to"
],
"properties": {
"to": {
"enum": [
"kmh",
"mph",
"ms",
"knots",
"fts"
],
"type": "string",
"description": "Target unit"
},
"from": {
"enum": [
"kmh",
"mph",
"ms",
"knots",
"fts"
],
"type": "string",
"description": "Source unit"
},
"value": {
"type": "number",
"description": "Speed value"
}
},
"additionalProperties": false
}Convert temperature between Celsius, Fahrenheit, and Kelvin. Use for cooking, weather, science. Inputs: value, from, to. Returns converted temperature. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| to* | string | Target unit |
| from* | string | Source unit |
| value* | number | Temperature value |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from",
"to"
],
"properties": {
"to": {
"enum": [
"celsius",
"fahrenheit",
"kelvin"
],
"type": "string",
"description": "Target unit"
},
"from": {
"enum": [
"celsius",
"fahrenheit",
"kelvin"
],
"type": "string",
"description": "Source unit"
},
"value": {
"type": "number",
"description": "Temperature value"
}
},
"additionalProperties": false
}Convert time between seconds, minutes, hours, days, weeks, months, years. Use for project planning or unit homogenization. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| to* | string | Target unit |
| from* | string | Source unit |
| value* | number | Time value |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from",
"to"
],
"properties": {
"to": {
"enum": [
"second",
"minute",
"hour",
"day",
"week",
"month",
"year"
],
"type": "string",
"description": "Target unit"
},
"from": {
"enum": [
"second",
"minute",
"hour",
"day",
"week",
"month",
"year"
],
"type": "string",
"description": "Source unit"
},
"value": {
"type": "number",
"description": "Time value"
}
},
"additionalProperties": false
}Convert volume between L, mL, cL, fl_oz, cup, tbsp, tsp, gal_us, gal_uk. Use for cooking and science. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| to* | string | Target unit |
| from* | string | Source unit |
| value* | number | Volume value |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from",
"to"
],
"properties": {
"to": {
"enum": [
"l",
"gal_us",
"ml",
"fl_oz",
"cup",
"tbsp",
"tsp",
"gal_uk",
"cl"
],
"type": "string",
"description": "Target unit"
},
"from": {
"enum": [
"l",
"gal_us",
"ml",
"fl_oz",
"cup",
"tbsp",
"tsp",
"gal_uk",
"cl"
],
"type": "string",
"description": "Source unit"
},
"value": {
"type": "number",
"description": "Volume value"
}
},
"additionalProperties": false
}Convert weight/mass between kg, g, mg, lb, oz, st, tonne. Use for cooking, shipping, or fitness. Inputs: value, from, to. Returns converted mass. See list_bundles for related 'conversions' calculators.
| Argument | Type | Description |
|---|---|---|
| to* | string | Target unit |
| from* | string | Source unit |
| value* | number | Weight value |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"value",
"from",
"to"
],
"properties": {
"to": {
"enum": [
"kg",
"lb",
"oz",
"g",
"st",
"ton",
"mg"
],
"type": "string",
"description": "Target unit"
},
"from": {
"enum": [
"kg",
"lb",
"oz",
"g",
"st",
"ton",
"mg"
],
"type": "string",
"description": "Source unit"
},
"value": {
"type": "number",
"description": "Weight value"
}
},
"additionalProperties": false
}Get the list of tools in a specific bundle. Returns tool names and descriptions for the requested domain bundle.
| Argument | Type | Description |
|---|---|---|
| bundle_id* | string | Bundle ID from list_bundles |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"bundle_id"
],
"properties": {
"bundle_id": {
"enum": [
"finance-france",
"finance-belgique",
"finance-suisse",
"finance-us",
"finance-uk",
"finance-afrique-quebec",
"finance-universal",
"immobilier",
"sante",
"sport",
"math",
"conversions",
"education",
"construction",
"science",
"auto-transport",
"vie-quotidienne",
"temps-rh",
"cuisine",
"animaux",
"astronomie-nature",
"voyage",
"jardinage",
"photographie",
"musique",
"crypto",
"jeux-probabilites",
"plomberie",
"textile-mode",
"fun",
"energie"
],
"type": "string",
"description": "Bundle ID from list_bundles"
}
},
"additionalProperties": false
}List all available tool bundles (grouped by domain). Use this to discover which tools are available for a specific topic instead of browsing all 500+ tools.
| Argument | Type | Description |
|---|---|---|
| _unused | string | No parameters needed |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"_unused": {
"type": "string",
"description": "No parameters needed"
}
},
"additionalProperties": false
}