Fat-Free Mass Index Calculator | FFMI Calculator

Calculate the amount of Fat Free Mass in your body with our free online FFMI Calculator. Use the calculator to help support your fitness and health routine to reach the ideal body fat ratio for your height and weight.

FFMI (Fat-Free Mass Index) Calculator
Body Fat (%)
Fat-Free Mass Index (FFMI):
Adjusted (Normalized) FFMI:
Fat-Free Mass (FFM):
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Use of the Health and Medical Calculators

Please note that the Fat Free Mass Calculator is provided for your personal use and designed to provide information and information relating to the calculations only. The Fat Free Mass Calculator should not be used for you to self-diagnose conditions, self-medicate or alter any existing medication that you are currently prescribed by your Doctor. If the Fat Free Mass Calculator produces a calculation which causes you concern, please consult your Doctor for support, advice and further information.