Free · Health · Body Measurements

Lean Body Mass Calculator

Compare Boer, Hume, and James lean-body-mass estimates from height, weight, and sex.

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Calculator inputs

Enter your values

Result

Your calculation

Formula average
49.3 kg
70.5% of body weight
Boer estimate
49.8 kg
Hume estimate
48.5 kg
James estimate
49.8 kg

These equations estimate population averages and are not a substitute for measured body composition.

How to use this calculator

  1. Enter current measurements as accurately as practical.
  2. Calculate to see the estimate, range, and method details.
  3. Use the result as context, and discuss health decisions with a qualified clinician.

Use the result with context

Health results are educational estimates, not a diagnosis or treatment recommendation. A qualified clinician can interpret measurements in the context of your health.