Body Fat Percentage estimates how much of your body mass is made up of fat. This calculator uses the U.S. Navy Method, which is based on body measurements.
U.S. Navy Method Formulas:
For men: Body Fat % = 86.010 × log10(waist – neck) – 70.041 × log10(height) + 36.76
For women: Body Fat % = 163.205 × log10(waist + hip – neck) – 97.684 × log10(height) – 78.387
- Body fat percentage is a better measure of fitness than BMI.
- It is used to assess health risks, athletic performance, and progress in weight loss or bodybuilding.
- Ranges vary by age and gender. Healthy ranges:
Men: 8–20%
Women: 20–30%
References
- Hodgdon JA, Beckett MB. Prediction of percent body fat for U.S. Navy men and women from body circumferences and height. 1984.