Example 1
Body Weight: 175 lbs; Body Fat Percentage: 15 %; Height: 70 inches
Height (Meters): 1.778 m; Fat Mass: 26.25 lbs; Fat-Free Mass: 148.75 lbs; FFMI: 103.7354521 kg/m²
FFMI Calculator
Health0.0(0)
Calculates Fat-Free Mass Index (FFMI), a measure of muscle mass relative to height, similar to BMI but focusing on muscularity. FFMI is a useful tool for assessing muscular development and potential.
More tools:Health Calculators
How To Use
How to use this calculator
Start with your values, or try a preset.
Step 1
Enter Body Weight, Body Fat Percentage, and Height in the units shown.
Step 2
Read Height (Meters), Fat Mass, Fat-Free Mass, and FFMI in the results panel. Results update as you change the inputs.
Step 3
Choose a preset to load an example, then adjust the values for your situation.
Worked Examples
Example calculations
See the inputs and their calculated results.
Example 2
Body Weight: 200 lbs; Body Fat Percentage: 10 %; Height: 72 inches
Height (Meters): 1.8288 m; Fat Mass: 20 lbs; Fat-Free Mass: 180 lbs; FFMI: 118.6516609 kg/m²
Example 3
Body Weight: 150 lbs; Body Fat Percentage: 20 %; Height: 68 inches
Height (Meters): 1.7272 m; Fat Mass: 30 lbs; Fat-Free Mass: 120 lbs; FFMI: 88.68082615 kg/m²
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Important
Use the result as an estimate and confirm any medical decisions with a qualified professional.