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Fat-Free Mass Index (FFMI) Calculator

A lean-mass-to-height reference for training context.

Educational reference only. The numbers on this page summarize public service regulations for planning purposes. They are not official medical, recruiting, or administrative determinations. Always confirm your status with a recruiter, commanding officer, or hiring agency using the official assessment.

Fat-Free Mass Index normalizes lean mass to height — a physique/readiness reference, not a pass/fail line.

Result

Fat-Free Mass Index21.2
Rough guide: ~17–20 is typical for active men; 20+ suggests substantial musculature. Not a service standard.