- Select Gender — Male or female (women need hip measurement).
- Enter Measurements — Height, waist, neck (and hip for women) in cm.
- Calculate — See body fat %, category, and lean/fat mass.
Body Fat Calculator — US Navy Method
The Body Fat Calculator estimates your body fat percentage using the US Navy circumference method. Simply enter your height, waist, and neck measurements (plus hip for women) to get an accurate estimate with category classification.
The US Navy Method
Developed by the US Department of Defense, this method uses circumference measurements of key body areas. The formulas account for the relationship between body dimensions and fat storage patterns.
Body Fat Categories
- Essential Fat — Men: 2-5%, Women: 10-13%
- Athlete — Men: 6-13%, Women: 14-20%
- Fitness — Men: 14-17%, Women: 21-24%
- Average — Men: 18-24%, Women: 25-31%
- Obese — Men: 25%+, Women: 32%+
Features
- Gender-Specific — Different formulas and categories for men and women.
- Category Classification — Instant body fat category assessment.
- US Navy Standard — Widely accepted method.
Privacy
All calculations run in your browser. No health data is transmitted.