Lean Body Mass Calculator – LBM Estimate
Calculate lean body mass using height, weight, and sex with the Boer formula.
❤️ Health📐
Weight (lbs)
Height (inches)
Sex
Please enter valid values.
Formula & Reference
| Variable | Formula | Units |
|---|---|---|
| Lean Body Mass Calculator – LBM Estimate | result |
Step-by-Step Examples
Example 1
180lb male, 70in
- LBM: ~154 lbs | Fat: ~26 lbs | ~14%
✓ ~154 lbs LBM
Example 2
140lb female, 65in
- LBM: ~100 lbs | Fat: ~40 lbs | ~29%
✓ ~100 lbs LBM
Example 3
200lb male, 72in
- LBM: ~172 lbs | ~14% body fat
✓ ~172 lbs LBM
Real-World Applications
Athletes
Track lean mass changes.
Dieters
Ensure fat loss, not muscle loss.
Trainers
Monitor body composition.
Clinicians
Drug dosing often uses LBM.
Common Mistakes to Avoid
⚠️
Formula is an estimate
Boer formula ±3 kg. DEXA more accurate.
⚠️
Weight is misleading
Scale weight includes water, food, waste.
Frequently Asked Questions
What is LBM? ▾
Weight minus fat — muscle, bones, organs, water.
Why track LBM? ▾
Shows real progress when body composition improves despite no scale change.
How to increase LBM? ▾
Progressive resistance training, adequate protein, sufficient calories.