IronLedger strength calculators

app.ironledger/strength-calculators · v1.1.0

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Read-only (all tools declare readOnlyHint)
Capabilities declared	tools
Tool definitions	7 tools · with description 100% · input schema is an object 100% · read/destructive hints 100%

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

streamable-http · https://www.ironledger.app/mcp

claude mcp add --transport http strength-calculators https://www.ironledger.app/mcp

{
  "mcpServers": {
    "strength-calculators": {
      "url": "https://www.ironledger.app/mcp"
    }
  }
}

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.
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.
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.
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.
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.
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.
check_program_file
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 ...?

Website · JSON · Text for agents · Registry updated 2026-10-16