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FFMI Calculator India — Fat-Free Mass Index
Measure your Fat-Free Mass Index — the science-based measure of muscularity relative to height.
Don't know your body fat %? Use the Body Fat Calculator first.
What Is FFMI?
Fat-Free Mass Index (FFMI) measures muscularity relative to height, normalizing for body size the way BMI does — but using lean mass instead of total weight. Research by Kouri et al. (1995) found that natural male bodybuilders rarely exceed a normalized FFMI of 25, making it a useful reference point for identifying the natural muscular ceiling.