Lean Body Mass Calculator
Estimate lean body mass (fat-free mass) from height, weight and sex using the Boer, James and Hume formulas.
Enter your values and press Calculate.
How to use the Lean Body Mass calculator
These formulas estimate typical lean mass for your size; athletes will usually have more.
Formula
Boer (men): 0.407W + 0.267H − 19.2; (women): 0.252W + 0.473H − 48.3, with W in kg and H in cm.
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