Lean Body Mass Calculator
Calculate your lean body mass (everything except fat).
How to Use This Calculator
- Enter your details in the fields above — all fields are used only in your browser, nothing is stored or sent anywhere.
- Double-check your units (cm/kg) before submitting for the most accurate result.
- Click Calculate to see your personalized result instantly.
- Results are estimates based on established formulas — for medical decisions, always confirm with a healthcare professional.
Frequently Asked Questions
What is lean body mass?
It's your total body weight minus fat mass — includes muscle, bone, organs, and water.