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Lean Body Mass Calculator

Convert weight and estimated body-fat % into lean mass for training progress tracking.

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.

Lean body mass from weight and an estimated body-fat %. Useful for tracking training progress.

Result

Lean body mass67 kg
Lean mass = weight × (1 − body-fat%). Re-estimate body-fat periodically; do not treat a single reading as exact.