FFMI Calculator

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FFMI Calculator is a tool to calculate fat free mass index using weight, height and body fat.

Fat Free Mass Index Calculator

US Unit Metric Unit
Weight  lbs  OR  kg
Height  feet   inches OR  cm
Body Fat  %

Pounds (lbs)

Fat-Free Mass
Body Fat

Kilogram (kg)

Fat-Free Mass
Body Fat
Normalized/Adjusted FFMI