Lean Body Mass Calculator
Estimate lean body mass using Boer, James, and Hume formulas.
Estimated lean body mass
60.1 kg
Boer formula
Boer formula60.1 kg
James formula61.2 kg
Hume formula56.5 kg
Body weight78 kg
Lean mass as share of body weight77%
Estimates for general guidance only — not medical advice. Check with a qualified healthcare professional for personal decisions.
About the Lean Body Mass Calculator
Estimate lean body mass using Boer, James, and Hume formulas.
It runs entirely in your browser — nothing you type is sent to a server — and the result updates as you edit the inputs. Estimates are for educational and informational purposes only; see ourdisclaimer.
Common searches
- fat-free mass
- body composition
- lean mass
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