Body fat calculator (US Navy method)

Measure with a tape and enter height, neck, waist and (for women) hips. You'll get an estimate of body fat percentage and its category.

Your clients book on their own, 24/7 An online booking page, an AI agent that answers in 7 languages and automatic reminders. See how it works

Your numbers

UnitsCentimeters or inches.
SexThe formula is different for women and men.
Without shoes.
Just below the Adam's apple, tape level.
Men: at the navel. Women: at the narrowest point. Relaxed, not pulled in.
At the widest point of the hips.

The result updates as you type.

Result

Fill in the fields to see the result.

For general information only. It is not medical advice; for a personal answer, talk to a doctor or a dietitian.

Questions and answers

How accurate is the Navy method?

It's an estimate, usually within a few percent of lab methods. Measure the same way each time to follow changes.

What is a healthy range?

By the American Council on Exercise, about 21โ€“31% for women and 14โ€“24% for men is fitness to average.

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