FFMI Bodybuilding Calculator
Compute Fat-Free Mass Index and normalised FFMI from weight, height and body-fat percentage to assess drug-free muscularity potential.
How to Use the FFMI Bodybuilding Calculator
- Enter body weight in kg.
- Enter height in metres.
- Enter body fat percent.
- Click Calculate.
使用场景
- •Physique assessment.
- •Tracking lean-mass progress.
- •Screening for PED use in research.
公式
LBM = weight × (1 − BF%/100). FFMI = LBM / height² + 6.1 × (1.8 − height_m).
常见问题
What FFMI is achievable natural?
Kouri et al. (1995) placed the drug-free upper limit near 25. Values above 26 strongly suggest pharmacological assistance.
How reliable is BF%?
FFMI is only as accurate as the body-fat estimate. DEXA or BIA give much tighter results than calipers or bioimpedance scales.
Medical disclaimer
Educational only. Not a substitute for clinical judgment or a licensed sports nutritionist.