UtilSlateSearch toolsCtrl K

Body Fat Calculator

Estimate your body fat with a tape measure.

Units
Sex

The formulas were fitted separately for men and women.

Just below the Adam’s apple.

Men: at the navel. Women: at the narrowest point.

Result

–

General information, not medical advice.

Runs on your device.

Questions

How do I measure correctly?

Use a flexible tape, snug but not squeezing. Measure the neck just below the larynx, and the waist at the navel for men or the narrowest point for women, relaxed, after breathing out. For women, measure the hips at the widest point.

How accurate is the Navy method?

Usually within about 3 to 4 percentage points of laboratory measurements, depending on how carefully you measure. Measuring the same way each time is good for tracking change.

What is a healthy body fat percentage?

The American Council on Exercise calls 14–24% fit to average for men and 21–31% for women. Some fat is essential: about 2–5% for men and 10–13% for women.

Is it free? Do I need an account?

It is free to use and there is nothing to sign up for. There are no watermarks and no daily limits.

Missing something, or not working as it should? Tell us