Lean Body Mass Calculator — Free Online Tool
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Lean Body Mass Calculator

Calculate Lean Body Mass and Body Fat Mass using the Boer formula

Fitness Guidelines: Lean Body Mass (LBM) represents total body weight minus body fat weight (including organs, bones, muscle, and water). This calculator uses the widely validated Boer formula based on weight, height, and biological sex. Enter your details below.
Body Parameters Input

Calculation Results

⚠️ Not medical advice. For fitness, wellness, and sports science reference only. Body composition estimation formulas provide general approximations rather than clinical DEXA scan precision.

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