Body Fat Calculator
Estimate your body fat percentage using the U.S. Navy method.
The US Navy Method provides a reliable estimation based on body dimensions. Accuracy can be improved by taking measures at the same time each day.
Find Your Percent
Enter your measurements to visualize your body composition using the US Navy method.
Body Fat Calculator
Estimate your body fat percentage using the U.S. Navy method. Body fat percentage is the total mass of fat divided by total body mass, multiplied by 100. It includes both essential body fat and storage body fat.
US Navy Method
This technique estimates body fat percentage using circumference measurements of the neck, waist, and hips.
Health Indicator
Body fat percentage is often more informative than weight alone, as it distinguishes between fat mass and lean muscle.
Male Formula
BF% = 495 / (1.0324 - 0.19077 * log10(Waist - Neck) + 0.15456 * log10(Height)) - 450Uses neck and waist circumferences alongside height to estimate body density.
Female Formula
BF% = 495 / (1.29579 - 0.35004 * log10(Waist + Hips - Neck) + 0.22100 * log10(Height)) - 450Adds hip circumference to the calculation to account for different fat distribution patterns.
Body Fat Examples
Male Fitness Level
A male with 15% body fat is typically in the 'Fitness' category, showing good muscle definition.
Female Average Level
A female with 28% body fat is in the 'Average' category, which is considered healthy for most women.