📏 Body Fat % Calculator

Understanding Body Fat Percentage

Body fat percentage is the proportion of your total body weight that is fat tissue. Unlike BMI, it provides a more accurate picture of body composition since it accounts for the difference between fat and lean mass (muscle, bone, organs).

The U.S. Navy Method

This calculator uses the U.S. Navy circumference method, which estimates body fat from measurements of your neck, waist, and (for women) hip circumferences relative to your height. While not as accurate as DEXA scans or hydrostatic weighing, it provides a reasonable estimate with just a tape measure.

Healthy Body Fat Ranges

• Men: Essential (2-5%), Athletic (6-13%), Fit (14-17%), Average (18-24%), Obese (25%+)
• Women: Essential (10-13%), Athletic (14-20%), Fit (21-24%), Average (25-31%), Obese (32%+)