Enter your measurements and click Estimate to see your body fat percentage
The US Navy body fat formula uses circumference measurements to estimate body fat percentage. For men, it uses waist and neck circumferences along with height. For women, it adds hip circumference. Developed by Hodgdon and Beckett at the Naval Health Research Center, this method correlates well with hydrostatic weighing and DEXA scans while requiring only a tape measure. The formula uses logarithmic relationships between body circumferences and body density to derive fat percentage.
This tool is for educational purposes only. Not medical advice. Consult a healthcare professional.