Health & Fitness
Lean Body Mass Calculator
Estimate lean body mass using the Boer formula from height, weight and sex.
Preparing your result…
What this calculator does
Calculates Lean Body Mass Calculator using the formula verified against the cited source.
What your result means
An estimate from the inputs you enter, within the scope stated below — not advice.
Formula
Men: LBM = 0.407W + 0.267H − 19.2; Women: LBM = 0.252W + 0.473H − 48.3
The step-by-step working for your own numbers appears with the result above and in the PDF report.
Frequently asked questions
Symbols and assumptions
- Inputs
- The values entered in the fields above
- • Boer estimated lean body mass, kg: male=0.407×weight kg+0.267×height cm−19.2; female=0.252×weight kg+0.473×height cm−48.3.
Sources and review
Reviewed 2026-10-18 · Next review 2027-04-18
- • This is an adult anthropometric estimate, not measured skeletal muscle mass. Validate units and flag implausible output such as lean mass≤0 or greater than body weight instead of silently clipping it. Do not assume pediatric or extreme-obesity validity.
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
Quick reference
| Scenario | Weight (kg) | Height (cm) | Lean body mass |
|---|---|---|---|
| Worked example | 75 | 175 | 58.05 kg |
| Half the amounts | 37.5 | 100 | 22.7625 kg |
| Double the amounts | 150 | 230 | 103.26 kg |
Need the full picture? Get the detailed PDF report with charts, tables, formulas and working steps.
Reviewed 2026-10-18 · Next review 2027-04-18
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