Calcvers
Lean Body Mass Calculator
Body
Generated
September 24, 2026
Lean body mass
58.9kg
Boer formula estimate
Your inputs
- Sex
- Male
- Weight
- 75 kg
- Height
- 178 cm
Breakdown
- Fat mass
- 16.1 kg
- Lean %
- 78.5 %
- Boer estimate
- 58.9 kg
Lean vs fat mass
| Item | Value |
|---|---|
| Lean mass | 58.9 kg |
| Fat mass | 16.1 kg |
What this means
Lean body mass (LBM) is everything in your body that isn't fat: muscle, bone, organs, water and connective tissue. It's the engine behind your metabolism and strength. If you know your body-fat percentage we compute it directly; otherwise we estimate it from height and weight using the Boer formula.
Recommendations
- Preserving lean mass while dieting is the whole point of eating enough protein and lifting weights.
- Use LBM to set protein targets (aim ~1.8–2.2 g per kg of total bodyweight) and to track recomposition.