Why is Lean Body Mass important for dosing and nutrition?
LBM reflects your metabolically active tissue, which determines baseline protein targets and accurate resting metabolic rate.
Lean Body Mass Calculator
Lean Body Mass (LBM) represents the total weight of your bones, muscles, water, organs, and connective tissues excluding adipose storage tissue.
Scientific Formula & Exercise Physiology Standards
Equation: Boer, James & Hume Anthropometric Formulas | Peer-Reviewed Source: European Journal of Applied Physiology / British Journal of Anaesthesia
Boer Men: (0.407 × W) + (0.267 × H) - 19.2 | Women: (0.252 × W) + (0.473 × H) - 48.3
Estimates fat-free mass based on height and total body weight. Compares three peer-reviewed clinical models for maximum precision.
Step-by-Step Worked Example: Boer Lean Mass Estimation
- Weight term: 0.407 × 80 = 32.56
- Height term: 0.267 × 180 = 48.06
- Calculate sum: 32.56 + 48.06 - 19.2 = 61.42 kg
Calculation Result: Lean Body Mass = 61.4 kg (Fat Mass = 18.6 kg / 23.2% Body Fat)
Clinical Nuances, Limitations & Best Practices
- Anthropometric formulas assume standard population hydration and bone density.
Frequently Asked Questions (Lean Body Mass Calculator)
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