Body Fat Percentage Calculator
Estimate your body fat percentage using the accurate US Navy circumference method. Enter your neck, waist, and hip measurements to calculate body fat %, fat mass, lean mass, and your fitness category.
Related Tools
Frequently Asked Questions
How is body fat percentage estimated?
This tool uses the Navy Method, which estimates body fat from circumference measurements (neck, waist, and hips for women). It is less accurate than DEXA scans but provides a useful estimate without equipment.
What is a healthy body fat percentage?
For men: essential fat 2–5%, athletes 6–13%, fitness 14–17%, acceptable 18–24%, obese 25%+. For women: essential 10–13%, athletes 14–20%, fitness 21–24%, acceptable 25–31%, obese 32%+.
Does BMI measure body fat?
No. BMI only uses height and weight and cannot distinguish between muscle and fat. Two people with the same BMI can have very different body fat percentages. A muscular athlete may have a high BMI but low body fat.