Body Fat Percentage
Body fat percentage calculator
Estimate body fat from a few tape measurements using the U.S. Navy method — height, neck, and waist for men, plus hips for women. It's a solid no-equipment estimate for tracking change. Measure in centimetres at the same spots each time.
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Category
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Method
U.S. Navy
Frequently asked questions
How do you measure body fat at home?
The U.S. Navy method uses tape measurements — height, neck, waist (plus hips for women) — in a logarithmic formula. No equipment needed.
What's a healthy body fat %?
Roughly 10–20% (men) and 18–28% (women), athletes lower. Essential fat ~3–5% (men), 10–13% (women). Varies by age/source.
How accurate is it?
Good for tracking change — usually within a few points of precise methods if measured carefully at the same spots.
An estimate, not a medical measurement. For clinical accuracy use DEXA or similar. Not medical advice.