Lean Body Mass (LBM) is everything in your body except fat: muscles, bones, organs, skin, and water.
Quick Formulas:
1. Body Fat Method: LBM = Weight × (1 - BodyFat%)
2. Boer Formula (Men): 0.407×Weight + 0.267×Height - 19.2
3. Boer Formula (Women): 0.252×Weight + 0.473×Height - 48.3
Body Fat Categories:
- Essential fat: Men 2-5%, Women 10-13%
- Athletes: Men 6-13%, Women 14-20%
- Average: Men 14-24%, Women 21-31%
- Above average: Men 25%+, Women 32%+
Note: These are estimates. For medical purposes, consult a healthcare professional.