Advanced Fat-Free Mass Index Analysis
Basic Information
Body Composition
15%
Essential (3-5%)
Athletic (6-13%)
Fit (14-24%)
Average (25%+)
Advanced Options
Body Composition
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FFMI Score
FFMI Classification
Skinny
Average
Athletic
Muscular
Elite
Lean Body Mass
--
kg
Standard FFMI
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kg/m²
Adjusted FFMI
--
kg/m²
Muscle Mass %
--
%
Your Analysis
Athletic Comparison
See how you compare to different athlete types
Average Male
18.0
Recreational Lifter
20.0
Fitness Model
22.0
Natural Bodybuilder
24.0
Elite Natural Limit
25.0
Your FFMI
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Track Progress
Monitor your FFMI over time to ensure you're gaining muscle, not just weight.
Nutrition Matters
Adequate protein intake (0.8-1g per lb of body weight) supports muscle growth.
Recovery is Key
7-9 hours of quality sleep optimizes muscle recovery and growth.
Calculating your body composition...