The U.S. Navy Method

This method estimates body fat percentage using circumference measurements at the neck and waist (and hips for women), along with height. It is a widely used field method that doesn’t require special equipment.

Measuring Tips

Measure the neck just below the larynx, the waist at the navel, and the hips at their widest point, keeping the tape snug but not compressing the skin, for the most accurate estimate.