Lean Body Mass Calculator
Calculate your lean body mass (LBM) using body fat percentage or body measurements. Understand your muscle mass versus fat mass composition.
Medical Disclaimer
This calculator provides general estimates for informational purposes only and does not constitute medical advice. Results should not be used for diagnosis or treatment decisions. Always consult a qualified healthcare professional or registered dietitian before making changes to your diet, exercise, or health routine.
Frequently Asked Questions
What is lean body mass?
Lean body mass (LBM) is your total weight minus fat mass. It includes muscle, bones, organs, and water - everything except stored fat.
Is lean body mass the same as muscle mass?
No, LBM includes all non-fat tissue. Muscle mass is a subset of LBM, which also includes bones, organs, skin, and body water.
What is a healthy lean body mass percentage?
Healthy LBM typically ranges from 70-90% of total body weight. Athletes may have 80-90%, while average adults are around 75-80%.
How can I increase lean body mass?
Increase LBM through strength training, adequate protein intake (1.6-2.2g/kg), progressive overload, and sufficient recovery time.
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