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Free fitness tool

Body Fat Percentage Calculator

Estimate your body-fat percentage with just a measuring tape using the U.S. Navy method. See where you fall from athletic to average.

18.2%
Body fat
Average
Category

Estimates for healthy adults — not medical advice. Consult a doctor if you have a medical condition.

Frequently asked

Where should I measure my waist?+

Men: at the navel. Women: at the narrowest point. Measure relaxed, first thing in the morning.

How accurate is the Navy method?+

Usually within 3–4% of DEXA scans — good enough to track progress if you measure the same way every time.

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