IronLedger strength calculators

Working · 2.0 s

app.ironledger/strength-calculatorsv1.1.0 Domain verified

Free strength-training calculators, plus a checker for program files you import into IronLedger.

Health & Science

Website Registry entry

Maintain this server? Claim it

Try it

Call this server's tools from your browser. Nothing to install.

https://www.ironledger.app/mcp

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

check_program_file Read-only

Check a training program written as a CSV or TSV file exactly as the IronLedger app will import it, before anyone loads it on a phone. Returns the weeks, sessions and exercises it creates, every skipped row and warning with its row number, the exercise names the app will question ("Did you mean ...?"), and names that will become new custom exercises. Use it whenever you write a program for someone to import into IronLedger, and fix anything it reports first. The app names the program after the file, so pass the file name you will give it.

filestring, required

The whole program file as text. Canonical header: Week,Day,Exercise,Sets,Reps,Load,RPE,RIR,Rest,Notes, then one row per exercise, such as 1,Day 1,Squat,5,5,100 kg,8,,3:00,belt. Wrap a cell that contains a comma in double quotes; never use a double quote inside a cell.

fileNamestring

The file name it will be saved as, such as "Texas Method.csv". The app names the program after it; without one the program is called Imported Spreadsheet.

Tools (7)

check_program_file

read-only

Argument	Type	Description
file*	string	The whole program file as text. Canonical header: Week,Day,Exercise,Sets,Reps,Load,RPE,RIR,Rest,Notes, then one row per exercise, such as 1,Day 1,Squat,5,5,100 kg,8,,3:00,belt. Wrap a cell that contains a comma in double quotes; never use a double quote inside a cell.
fileName	string	The file name it will be saved as, such as "Texas Method.csv". The app names the program after it; without one the program is called Imported Spreadsheet.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "file"
  ],
  "properties": {
    "file": {
      "type": "string",
      "maxLength": 200000,
      "description": "The whole program file as text. Canonical header: Week,Day,Exercise,Sets,Reps,Load,RPE,RIR,Rest,Notes, then one row per exercise, such as 1,Day 1,Squat,5,5,100 kg,8,,3:00,belt. Wrap a cell that contains a comma in double quotes; never use a double quote inside a cell."
    },
    "fileName": {
      "type": "string",
      "maxLength": 120,
      "description": "The file name it will be saved as, such as \"Texas Method.csv\". The app names the program after it; without one the program is called Imported Spreadsheet."
    }
  },
  "additionalProperties": false
}

one_rep_max

Estimate a one-rep max (1RM) from a set of weight × reps, with a percentage table and the load each rep count should allow. Epley by default, Brzycki optional. Estimates above 10 reps are flagged as less reliable.

read-only

Argument	Type	Description
reps*	integer	Reps completed, 1 to 30.
unit	string	Weight unit for every load in and out: kg or lb.
weight*	number	Weight lifted for the set.
formula	string	One-rep max formula: epley (weight × (1 + reps ÷ 30), the one the IronLedger app uses) or brzycki (weight × 36 ÷ (37 − reps)).

Input schema (JSON)

{
  "type": "object",
  "required": [
    "weight",
    "reps"
  ],
  "properties": {
    "reps": {
      "type": "integer",
      "maximum": 30,
      "minimum": 1,
      "description": "Reps completed, 1 to 30."
    },
    "unit": {
      "enum": [
        "kg",
        "lb"
      ],
      "type": "string",
      "default": "kg",
      "description": "Weight unit for every load in and out: kg or lb."
    },
    "weight": {
      "type": "number",
      "maximum": 2000,
      "minimum": 0.5,
      "description": "Weight lifted for the set."
    },
    "formula": {
      "enum": [
        "epley",
        "brzycki"
      ],
      "type": "string",
      "default": "epley",
      "description": "One-rep max formula: epley (weight × (1 + reps ÷ 30), the one the IronLedger app uses) or brzycki (weight × 36 ÷ (37 − reps))."
    }
  },
  "additionalProperties": false
}

plate_loading

Work out which plates to put on each side of a barbell to reach a target weight, using standard gym plates or the plates you list. Reports the exact load and anything your plates can’t make.

read-only

Argument	Type	Description
bar	number	Bar weight in the chosen unit. Defaults to 20 kg or 45 lb.
unit	string	Weight unit for every load in and out: kg or lb.
plates	string	Plates available, heaviest first or in any order: "25,20,15,10,5,2.5,1.25" for as many as needed, or "25:4,20:2" for pairs owned. Defaults to standard gym plates (kg: 25 to 1.25; lb: 45 to 2.5).
target*	number	Total weight wanted on the bar, including the bar.
collars	boolean	Count a collar on each side.
collarWeight	number	Weight of each collar. Defaults to 2.5 kg or 5 lb.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "target"
  ],
  "properties": {
    "bar": {
      "type": "number",
      "maximum": 100,
      "minimum": 0,
      "description": "Bar weight in the chosen unit. Defaults to 20 kg or 45 lb."
    },
    "unit": {
      "enum": [
        "kg",
        "lb"
      ],
      "type": "string",
      "default": "kg",
      "description": "Weight unit for every load in and out: kg or lb."
    },
    "plates": {
      "type": "string",
      "description": "Plates available, heaviest first or in any order: \"25,20,15,10,5,2.5,1.25\" for as many as needed, or \"25:4,20:2\" for pairs owned. Defaults to standard gym plates (kg: 25 to 1.25; lb: 45 to 2.5)."
    },
    "target": {
      "type": "number",
      "maximum": 2000,
      "minimum": 0,
      "description": "Total weight wanted on the bar, including the bar."
    },
    "collars": {
      "type": "boolean",
      "default": false,
      "description": "Count a collar on each side."
    },
    "collarWeight": {
      "type": "number",
      "maximum": 20,
      "minimum": 0,
      "description": "Weight of each collar. Defaults to 2.5 kg or 5 lb."
    }
  },
  "additionalProperties": false
}

powerlifting_score

Score a powerlifting total (or a bench press) against bodyweight with DOTS, IPF GL points and the original Wilks, using the coefficients the OpenPowerlifting rankings use.

read-only

Argument	Type	Description
sex*	string	The formulas have separate male and female coefficients.
unit	string	Weight unit for every load in and out: kg or lb.
event	string	For IPF GL: sbd (full powerlifting total) or bench (bench press only).
total*	number	Total lifted (squat + bench + deadlift), or the bench press for event "bench".
equipment	string	For IPF GL: raw (classic) or equipped.
bodyweight*	number	Bodyweight in the chosen unit.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "total",
    "bodyweight",
    "sex"
  ],
  "properties": {
    "sex": {
      "enum": [
        "male",
        "female"
      ],
      "type": "string",
      "description": "The formulas have separate male and female coefficients."
    },
    "unit": {
      "enum": [
        "kg",
        "lb"
      ],
      "type": "string",
      "default": "kg",
      "description": "Weight unit for every load in and out: kg or lb."
    },
    "event": {
      "enum": [
        "sbd",
        "bench"
      ],
      "type": "string",
      "default": "sbd",
      "description": "For IPF GL: sbd (full powerlifting total) or bench (bench press only)."
    },
    "total": {
      "type": "number",
      "maximum": 2000,
      "minimum": 1,
      "description": "Total lifted (squat + bench + deadlift), or the bench press for event \"bench\"."
    },
    "equipment": {
      "enum": [
        "raw",
        "equipped"
      ],
      "type": "string",
      "default": "raw",
      "description": "For IPF GL: raw (classic) or equipped."
    },
    "bodyweight": {
      "type": "number",
      "maximum": 400,
      "minimum": 20,
      "description": "Bodyweight in the chosen unit."
    }
  },
  "additionalProperties": false
}

rpe_estimate_max

Estimate a one-rep max from weight, reps and RPE, treating RPE as reps in reserve (RPE 8 = 2 reps left) and applying the one-rep max formula to reps + reps in reserve.

read-only

Argument	Type	Description
rpe*	number	Rating of perceived exertion, 5 to 10, read as reps in reserve (RPE 8 = 2 reps left). Half points allowed.
reps*	integer	Reps completed, 1 to 20.
unit	string	Weight unit for every load in and out: kg or lb.
weight*	number	Weight lifted for the set.
formula	string	One-rep max formula: epley (weight × (1 + reps ÷ 30), the one the IronLedger app uses) or brzycki (weight × 36 ÷ (37 − reps)).

Input schema (JSON)

{
  "type": "object",
  "required": [
    "weight",
    "reps",
    "rpe"
  ],
  "properties": {
    "rpe": {
      "type": "number",
      "maximum": 10,
      "minimum": 5,
      "description": "Rating of perceived exertion, 5 to 10, read as reps in reserve (RPE 8 = 2 reps left). Half points allowed."
    },
    "reps": {
      "type": "integer",
      "maximum": 20,
      "minimum": 1,
      "description": "Reps completed, 1 to 20."
    },
    "unit": {
      "enum": [
        "kg",
        "lb"
      ],
      "type": "string",
      "default": "kg",
      "description": "Weight unit for every load in and out: kg or lb."
    },
    "weight": {
      "type": "number",
      "maximum": 2000,
      "minimum": 0.5,
      "description": "Weight lifted for the set."
    },
    "formula": {
      "enum": [
        "epley",
        "brzycki"
      ],
      "type": "string",
      "default": "epley",
      "description": "One-rep max formula: epley (weight × (1 + reps ÷ 30), the one the IronLedger app uses) or brzycki (weight × 36 ÷ (37 − reps))."
    }
  },
  "additionalProperties": false
}

rpe_target_load

Find the load for a set of a given number of reps at a target RPE, from a known or estimated one-rep max. Rounded to the nearest 0.5.

read-only

Argument	Type	Description
rpe*	number	Rating of perceived exertion, 5 to 10, read as reps in reserve (RPE 8 = 2 reps left). Half points allowed.
reps*	integer	Target reps, 1 to 20.
unit	string	Weight unit for every load in and out: kg or lb.
formula	string	One-rep max formula: epley (weight × (1 + reps ÷ 30), the one the IronLedger app uses) or brzycki (weight × 36 ÷ (37 − reps)).
oneRepMax*	number	Your one-rep max (tested or estimated).

Input schema (JSON)

{
  "type": "object",
  "required": [
    "oneRepMax",
    "reps",
    "rpe"
  ],
  "properties": {
    "rpe": {
      "type": "number",
      "maximum": 10,
      "minimum": 5,
      "description": "Rating of perceived exertion, 5 to 10, read as reps in reserve (RPE 8 = 2 reps left). Half points allowed."
    },
    "reps": {
      "type": "integer",
      "maximum": 20,
      "minimum": 1,
      "description": "Target reps, 1 to 20."
    },
    "unit": {
      "enum": [
        "kg",
        "lb"
      ],
      "type": "string",
      "default": "kg",
      "description": "Weight unit for every load in and out: kg or lb."
    },
    "formula": {
      "enum": [
        "epley",
        "brzycki"
      ],
      "type": "string",
      "default": "epley",
      "description": "One-rep max formula: epley (weight × (1 + reps ÷ 30), the one the IronLedger app uses) or brzycki (weight × 36 ÷ (37 − reps))."
    },
    "oneRepMax": {
      "type": "number",
      "maximum": 2000,
      "minimum": 1,
      "description": "Your one-rep max (tested or estimated)."
    }
  },
  "additionalProperties": false
}

warmup_sets

Build a warm-up ramp to a working weight: plate-friendly jumps, reps falling from 10 to singles, with the plates for each set. The same ramp the IronLedger app suggests.

read-only

Argument	Type	Description
bar	number	Bar weight in the chosen unit. Defaults to 20 kg or 45 lb.
sets	integer	Number of warm-up sets, 1 to 12.
unit	string	Weight unit for every load in and out: kg or lb.
workingWeight*	number	The first working set’s weight.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "workingWeight"
  ],
  "properties": {
    "bar": {
      "type": "number",
      "maximum": 100,
      "minimum": 0,
      "description": "Bar weight in the chosen unit. Defaults to 20 kg or 45 lb."
    },
    "sets": {
      "type": "integer",
      "default": 4,
      "maximum": 12,
      "minimum": 1,
      "description": "Number of warm-up sets, 1 to 12."
    },
    "unit": {
      "enum": [
        "kg",
        "lb"
      ],
      "type": "string",
      "default": "kg",
      "description": "Weight unit for every load in and out: kg or lb."
    },
    "workingWeight": {
      "type": "number",
      "maximum": 2000,
      "minimum": 1,
      "description": "The first working set’s weight."
    }
  },
  "additionalProperties": false
}