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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.