Lean Body Mass Calculator
Estimate lean body mass (everything except fat) from height, weight and sex with the Boer and Hume formulas.
Lean body mass (Boer)
58.1 kg (128 lb)
- Share of body weight (Boer)
- 78%
- Lean body mass (Hume)
- 54.5 kg (120.1 lb)
Height-and-weight formulas can't see muscle or fat directly, so they miss for very muscular bodies and at very low or very high BMI. A body-composition scan measures it.
Show the work
Height in centimeters
cm = (ft × 12 + in) × 2.54
(5 × 12 + 9) × 2.54 = 175.26 cm
Weight in kilograms
kg = lb × 0.45359237
165 × 0.45359237 = 74.84274105 kg
Boer formula (men)
LBM = 0.407 × kg + 0.267 × cm − 19.2
0.407 × 74.84274105 + 0.267 × 175.26 − 19.2 = 58.1 kg (128 lb)
For general information only — not medical advice. Talk to a doctor or other qualified professional about your health.
How it works
Boer (1984): men 0.407 × kg + 0.267 × cm − 19.2; women 0.252 × kg + 0.473 × cm − 48.3 · Hume (1966): men 0.32810 × kg + 0.33929 × cm − 29.5336; women 0.29569 × kg + 0.41813 × cm − 43.2933
Questions
- How does the lean body mass calculator work?
- Boer (1984): men 0.407 × kg + 0.267 × cm − 19.2; women 0.252 × kg + 0.473 × cm − 48.3 · Hume (1966): men 0.32810 × kg + 0.33929 × cm − 29.5336; women 0.29569 × kg + 0.41813 × cm − 43.2933.
- What do I need to enter?
- Sex, Units, Height, Height (feet), Height (inches), Weight. Optional fields can be left blank.
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