Lean Body Mass Calculator - LBM & Body Composition Calculator
Calculate your Lean Body Mass (LBM) instantly. Free online LBM calculator to determine muscle mass, body fat percentage, and body composition using scientific formulas.
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About Lean Body Mass
Lean Body Mass (LBM) is your total body weight minus the weight of stored fat. It includes your muscles, bones, organs, and water.
This calculator uses the US Navy body fat estimation method to calculate your lean body mass.