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Lean Body Mass Calculator

Estimate lean body mass with the Boer formula.

Estimate lean body mass (everything that isn't fat) using the Boer formula and your sex, height, and weight.

Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

kg
cm

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Boer formula. Men: LBM = 0.407 · W + 0.267 · H − 19.2. Women: LBM = 0.252 · W + 0.473 · H − 48.3. W in kg, H in cm.

In depth

Estimate lean body mass (everything that isn't fat) using the Boer formula and your sex, height, and weight.