Free Amazon and Meta ads calculators. No brand data and no key.
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Spillmark's method in brief: how a geo holdout test measures the sales Meta ads cause on Amazon, with links to the full method and a sample report on made-up numbers.
This tool takes no arguments.
Spillmark's method in brief: how a geo holdout test measures the sales Meta ads cause on Amazon, with links to the full method and a sample report on made-up numbers.
No arguments.
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {}
}Spillmark's free Amazon and Meta ads calculators (holdout test size, incremental ROAS, break-even ROAS, ACoS, TACoS, Amazon fees and profit, LTV and CAC), with each one's inputs and example values. Use run_calculator to run one.
| Argument | Type | Description |
|---|---|---|
| q | string | Filter by words in the name or summary, e.g. 'holdout' or 'fees' |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"q": {
"type": "string",
"maxLength": 60,
"description": "Filter by words in the name or summary, e.g. 'holdout' or 'fees'"
}
}
}Runs one calculator from list_calculators on your numbers and returns the headline result, the supporting figures, a one-sentence reading, and a link that opens the calculator with the same inputs. Missing inputs use the calculator's example values. Enter percents as points (15 means 15%), choices as the option index.
| Argument | Type | Description |
|---|---|---|
| slug* | string | Calculator slug from list_calculators, e.g. holdout-test-calculator |
| inputs | object | Input values by key |
| currency | string | Currency for money results. Default USD |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"slug"
],
"properties": {
"slug": {
"type": "string",
"maxLength": 80,
"minLength": 1,
"description": "Calculator slug from list_calculators, e.g. holdout-test-calculator"
},
"inputs": {
"type": "object",
"description": "Input values by key",
"propertyNames": {
"type": "string"
},
"additionalProperties": {
"anyOf": [
{
"type": "number"
},
{
"type": "string",
"maxLength": 32
},
{
"type": "null"
}
]
}
},
"currency": {
"enum": [
"USD",
"EUR",
"GBP",
"CAD",
"AUD"
],
"type": "string",
"description": "Currency for money results. Default USD"
}
}
}