Lean Body Mass Calculator

Calculate your lean body mass (LBM) - your body weight minus all fat.

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Important Health Disclaimer

This calculator provides general health information based on standard medical formulas and WHO guidelines. Results are for informational and educational purposes only and should not be considered as professional medical advice, diagnosis, or treatment recommendations.

For health concerns, medical conditions, fitness plans, or dietary decisions, please consult with qualified healthcare professionals, licensed physicians, registered dietitians, or certified fitness trainers who can evaluate your individual health status and medical history.

Individual health needs vary significantly. These calculations are general estimates and may not be appropriate for everyone, especially those with existing medical conditions, pregnant women, children, or elderly individuals.

Not a substitute for professional medical advice

Your Details

kg
cm

Average Lean Body Mass

53.7

kg (76.7% of body weight)

Boer Formula
54.7 kg
James Formula
55.3 kg
Hume Formula
51.1 kg
Fat Mass
16.3 kg

Estimated Body Fat: 23.3%

About Lean Body Mass

Lean Body Mass (LBM) is your total body weight minus your body fat. It includes bones, muscles, organs, blood, and everything else except fat.

Why LBM Matters

  • Better metric for fitness progress than total weight
  • Used in calculating accurate medication dosages
  • Important for determining caloric needs
  • Helps track muscle gain during training
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