Lean Body Mass Calculator
The Lean Body Mass Calculator estimates lean body mass (LBM) using body weight, height, gender, and age. It provides results from multiple formulas for comparison.
cm
kg
Formulas Used
Boer Formula (Adults)
Male: LBM = (0.407 × weight) + (0.267 × height) - 19.2
Female: LBM = (0.252 × weight) + (0.473 × height) - 48.3
James Formula (Adults)
Male: LBM = 1.1 × weight - 128 × (weight/height²)²
Female: LBM = 1.07 × weight - 148 × (weight/height²)²
Hume Formula (Adults)
Male: LBM = (0.32810 × weight) + (0.33929 × height) - 29.5336
Female: LBM = (0.29569 × weight) + (0.41813 × height) - 43.2933
Peters Formula (Children ≤14)
LBM = 3.8 × (0.0215 × weight^0.6469 × height^0.7236)