Estimate your body fat percentage using the U.S. Navy method. Get lean mass, fat mass, and fitness category.
Body fat percentage is the proportion of your total body weight that is fat tissue. Unlike BMI, body fat percentage directly measures body composition, making it a more accurate indicator of health and fitness.
Men: 2-5% | Women: 10-13%. The minimum needed for basic health. Going below this is dangerous.
Men: 6-13% | Women: 14-20%. Typical of competitive athletes. Visible muscle definition.
Men: 14-17% | Women: 21-24%. Active, fit individuals. Good muscle tone with some softness.
Men: 18-24% | Women: 25-31%. General population average. Acceptable health range.
The U.S. Navy method is accurate within 1-3% for most people when measurements are taken correctly. It's considered one of the most reliable non-lab body fat estimation methods.
For men, 10-20% is considered fit, with athletes at 6-13%. For women, 18-28% is fit, with athletes at 14-20%. Essential fat minimums are about 3% for men and 12% for women.
Neck circumference helps account for upper body muscle mass, which improves the accuracy of the body fat estimation. A larger neck relative to waist typically indicates more muscle mass.