FFMI Categories
FFMI can help compare muscular development across different heights, but it should be interpreted with training age and measurement accuracy.
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Body Composition
FFMI Calculator
FFMI compares lean body mass to height. It can give lifters a clearer view of muscularity than BMI alone.
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Your FFMI Estimate
Your FFMI is 20.7, classified as Advanced.
FFMI
20.7
Category
Advanced
Lean Mass
65.5 kg
Result Breakdown
Beginner< 18
Advanced20 - 22
Elite22 - 25
Use FFMI as a long-term physique benchmark, not as a short-term progress target.
Natural Limit Context
A high FFMI does not prove anything by itself. It is a rough benchmark that becomes more useful when paired with photos, measurements, and training history.
FFMI Calculator FAQ
What does FFMI mean?
FFMI means fat free mass index. It compares lean mass to height to estimate muscularity.
What is a good FFMI?
Context matters, but many trained lifters fall around 20 to 23. Values near 25 are often considered close to a natural ceiling.
Is FFMI better than BMI?
For lifters, FFMI can be more useful because it accounts for body fat and lean mass instead of only total weight.