The Body Fat Calculator estimates your body fat percentage using the U.S. Navy circumference method. Enter a few measurements and it returns your body fat percentage, fitness category, and your fat and lean mass.
The U.S. Navy method
This widely used method estimates body fat from your height and a few tape measurements — neck and waist for men, plus hip for women. It's a practical alternative to calipers or scales and needs only a tape measure.
Results include your body fat percentage, a fitness category, and your estimated fat and lean body mass.
Measuring tips
- Measure the narrowest part of your neck
- Measure the waist at navel level
- Women also measure the widest part of the hips
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