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FFMI Calculator
All health tools
Calculate Fat-Free Mass Index to assess muscle mass.
Body Stats
Metric (kg/cm)
Imperial (lb/in)
Patient Weight (kg)
Height (cm)
Body Fat
Muscle Analysis
Normalized FFMI
21.1
Category
Above Average
Raw FFMI
20.8
Lean Mass
63.8
kg
Result Interpretation
A Normalized FFMI of 21.1 puts you in the "Above Average" category. Scores above 25 are exceedingly rare for natural trainees.
About this calculator
Overview
FFMI normalizes fat-free mass to height, similar to BMI but for muscle.
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Fun Facts
