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Body Fat Calculator

Estimate your body fat percentage with the U.S. Navy circumference method.

U.S. Navy circumference method.

How to use

  1. Choose your sex.
  2. Enter height, neck and waist (and hip for women) in centimetres.
  3. Your estimated body fat percentage updates instantly.
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FAQ

How accurate is the Navy method?

It's a solid estimate from tape measurements, though body scans like DEXA are more precise.

Where do I measure?

Neck below the larynx, waist at the navel, and hips at the widest point.

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