FFMI Calculator
Enter your details to estimate your Fat-Free Mass Index.
Weight (kg)
Height (cm)
Body Fat (%)
Calculate FFMI
Your FFMI
Formula:
FFMI = (Weight * (1 - Body Fat%)) / (Height^2) * 10000
Adjusted FFMI = FFMI + (6.1 * (1.8 - Height in meters))
Please fill all fields with positive numbers.