Lean Body Mass Calculator

Calculate your lean body mass (LBM) by subtracting fat mass from total body weight. LBM includes muscles, bones, organs, and water.

About Lean Body Mass Calculator

Calculate your lean body mass (LBM) by subtracting fat mass from total body weight. LBM includes muscles, bones, organs, and water. This tool uses scientifically validated formulas to provide accurate results. All calculations are performed instantly in your browser.

How to Use

  1. Enter your values in the fields above
  2. Click the "Calculate" button to see your results
  3. Review the detailed breakdown of your results

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