Body Fat Calculator (U.S. Navy Method)

Accurately estimate your body fat percentage using the U.S. Navy Method. This formula is widely recognized for its reliability in fitness and clinical settings.

Gender

Weight (kg)

Height (cm)

Waist (cm)

Neck (cm)

Hip (cm)

Body Fat Formula (U.S. Navy Method)

For Men: $$Body Fat = 86.010 \times \log_{10}(waist - neck) - 70.041 \times \log_{10}(height) + 36.76$$

For Women: $$Body Fat = 163.205 \times \log_{10}(waist + hip - neck) - 97.684 \times \log_{10}(height) - 78.387$$

Reference: Hodgdon, J.A. and Beckett, M.B. (1984). "Prediction of percent body fat for U.S. Navy men and women from body circumferences and height."

Frequently Asked Questions

How accurate is the U.S. Navy method?

It is considered a highly reliable estimation method for body fat, commonly used by fitness professionals and health organizations.

What is a healthy body fat percentage?

Healthy ranges vary by age and gender; generally, 15-20% for men and 22-28% for women is considered a healthy athletic range.