FFMI Calculator
Worked example result
| Fat-free mass | 72.3 kg |
| Fat mass | 12.8 kg |
| FFMI | 22.30 kg/m² |
| Normalized FFMI (adjusted to 1.80 m) | 22.30 kg/m² |
An 85 kg lifter at 180 cm with 15% body fat carries 72.3 kg of fat-free mass — an FFMI of 22.30, which is also his normalized FFMI because he is exactly 1.80 m tall.
Fat-free mass = weight × (1 − body fat %) · FFMI = fat-free mass ÷ height (m)² · Normalized FFMI = FFMI + 6.1 × (1.8 − height (m)) · Powered by CalcHub — FFMI Calculator