FFMI Calculator
Free FFMI Calculator helps you calculate your Fat Free Mass Index using height, weight, and body fat percentage to assess muscle development accurately.
What is FFMI?
FFMI stands for Fat Free Body Mass Index, which allows users to calculate the amount of muscle mass based on their height. This index is used by bodybuilders to compare themselves to others. FFMI is also an alternative to BMI.
Formula: FFMI = (Fat-Free Mass in kg) ÷ (Height in meters)²
Fat-Free Mass: Your total body weight minus fat mass
FFMI Categories & Interpretation
| FFMI Range | Category | Description |
|---|---|---|
| < 18 | Below Average | May indicate need for muscle building |
| 18 - 20 | Average | Typical for general population |
| 20 - 22 | Above Average | Good muscle development |
| 22 - 25 | Excellent | Well-developed musculature |
| 25+ | Elite | Athlete-level muscle mass |
Why FFMI Matters
Better than BMI : FFMI differentiates between muscle and fat, giving a clearer picture of body composition.
Progress Tracking: best suited in tracking muscle growth in fitness programs.
Health Assessment: Aids in determining people who have a low muscle mass, and they might be vulnerable to sarcopenia.
Fitness Goals:These can be used to set realistic muscle building objectives.
How to use Our FFMI calculator
To calculate your FFMI, complete the following simple steps:
- Choose your gender
- Enter your height.
- Enter your age
- Enter your weight
- Enter your body fat percentage
- Click the Calculate button to get the results
Note: Our FFMI Calculator provides estimates for educational purposes. Individual results may vary. Consult with healthcare professionals for medical advice
FFMI calculations are most accurate when actual body fat percentage is provided.