Health & Fitness · Free Online Tool
Fat-Free Mass Index (FFMI) Calculator
Calculate normalized lean muscular development and evaluate natural genetic bodybuilding limits using Kouri standards.
Presets:
Normalized FFMI (1.80m Reference)
22.3
Advanced Natural Lifter — Natural genetic ceiling benchmark is ~25.0.
Raw Unadjusted FFMI
22.3
Fat-Free Lean Mass
72.2 kg
Body Adipose Mass
9.8 kg
Max Natural Potential
90 kg (10% BF)
Metric Distribution Analysis
Raw Unadjusted FFMI 22.3
Fat-Free Lean Mass 72.2
Body Adipose Mass 9.8
Max Natural Potential 90
Frequently Asked Questions
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