Body fat percentage calculator (U.S. Navy method)
Estimates body fat from body circumferences (U.S. Navy method). Error is about ±3–4% vs DXA and very sensitive to measurement accuracy.
Body fat
Fill in all fields — the result appears automatically
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- Fat mass
- — kg
- Lean mass
- — kg
This calculator is for informational purposes only and is not medical advice. Consult a doctor or qualified professional before changing your diet or training.