Body Composition
Fat Free Mass Index (FFMI) Calculator
FFMI normalizes lean body mass for height, providing a more accurate measure of muscularity than BMI. It is used in sports physiotherapy and body composition assessment.
Formula
FFMI = Lean Body Mass (kg) / Height (m)²
Normal Range
Men: Average 19-21 | Athletic 22-23 | Elite 24-25 | Women: Average 15-17
Clinical Use
Sports physiotherapy, body composition analysis, muscle building programs.
Use the Calculator
Enter patient values and get instant AI-powered clinical interpretation.