Body Fat Calculator

Estimate body fat percentage using the US Navy method.

Fill in your measurements to estimate body fat percentage.

About the Body Fat Calculator

This body fat calculator estimates your body fat percentage using the U.S. Navy method, which uses body measurements rather than weight alone.

Body Fat Categories

Measurement Tips

Measure your neck at the narrowest point, waist at navel level, and hips at the widest point. Take measurements in the morning before eating for consistent results. Use a flexible tape measure.