Lean Body Mass Calculator
Calculate lean body mass using multiple scientific formulas for accurate body composition analysis
Body Measurements
Ready to Calculate
Enter your body measurements to calculate lean body mass using multiple formulas.
Lean Body Mass & Fitness Tips
LBM includes muscle, bones, organs, and water - everything except body fat
Higher LBM generally indicates better metabolic health and physical fitness
LBM naturally decreases with age - strength training helps maintain it
Different formulas may give different results - use average as general guide
Body fat method (if available) is often most accurate for LBM calculation
LBM affects daily calorie needs - higher LBM means higher metabolic rate
Tracking LBM is more useful than tracking total weight for fitness goals
Muscle mass is the largest component of LBM and most responsive to training
Dehydration can temporarily reduce LBM measurements - stay well hydrated
Professional DEXA scans provide most accurate LBM measurements