Body Fat Percentage Calculator
Calculate body fat percentage using US Navy method
About this calculator
This Body Fat Percentage Calculator uses the proven US Navy method to estimate your body fat percentage based on circumference measurements. The US Navy formula is widely trusted by fitness professionals and military organizations because it provides accurate results without expensive equipment like DEXA scans or body fat calipers. By measuring specific body parts and inputting your height, weight, and gender, you can track your fitness progress, set realistic goals, and monitor changes in body composition over time. This method is particularly useful for athletes, fitness enthusiasts, and anyone wanting to understand their body composition beyond just weight.
How to use
Enter your gender, age, height, and weight in the calculator. For men, measure your neck and waist circumference at the specified points. For women, also measure your hip circumference. Input all measurements in inches or centimeters as indicated. Click calculate to get your body fat percentage result instantly.
Frequently asked questions
How accurate is the US Navy body fat method?
The US Navy method is considered highly accurate, typically within 3-4% of DEXA scan results when measurements are taken correctly.
Where should I measure my waist for accurate results?
Measure at the narrowest point of your waist, typically just above the hip bones and below the ribcage.
How often should I calculate my body fat percentage?
Check monthly or bi-weekly for tracking progress, as body fat changes occur gradually over time with diet and exercise.