Body Fat Calculator
Estimate body fat percentage using the U.S. Navy method.
Body Fat Calculator
Enter your values and calculate
How This Calculator Works
The U.S. Navy method estimates body fat from circumference measurements. It's convenient but less accurate than DEXA or hydrostatic weighing. Measure waist at the navel and neck below the larynx.
Formula
Men: 495 / (1.0324 − 0.19077·log(waist−neck) + 0.15456·log(height)) − 450
Example
A 175 cm male with a 38 cm neck and 85 cm waist has roughly 15% body fat — fitness range.
Practical Use Cases
- Fitness tracking
- Cutting/bulking phases
- Health risk assessment