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Lean Body Mass Calculator
Estimate your lean body mass (everything except fat) using the Boer formula from height, weight and gender.
How to use this tool
- 1Paste or type your input above.
- 2The result updates instantly.
- 3Copy the output with one click.
Frequently asked questions
Why does lean body mass matter?+
LBM drives your metabolism and strength. Tracking it during a diet tells you whether you're losing fat (good) or muscle (bad).
Is my data private?+
Yes. The tool runs entirely in your browser β nothing you paste or type is uploaded to a server.
Learn more
- Lean Body Mass Calculator: how it works
- lean body mass calculator tips
- Lean Body Mass Calculator FAQs