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Body Fat Calculator
Estimate your body fat percentage using the U.S. Navy method, which relies on body measurements. This provides a more detailed view of your body composition than weight alone.
About This Tool
This calculator uses the U.S. Navy method to estimate body fat percentage. Unlike BMI, which only considers height and weight, this method uses body measurements to provide a better indication of your body composition and overall fitness level.
How to Use This Tool
- Select your gender.
- Enter your height, neck circumference, and waist circumference in centimeters.
- If you are female, also enter your hip circumference.
- Click "Calculate Body Fat" to see your estimated body fat percentage.
Frequently Asked Questions
How accurate is this calculator?+
The U.S. Navy method is a reasonably accurate way to estimate body fat for most people. However, it is still an estimation. For the most precise measurements, methods like DEXA scans or hydrostatic weighing are recommended. This tool is best used for tracking changes over time.
Why is body fat percentage a better metric than BMI?+
Body fat percentage distinguishes between fat mass and lean mass (muscles, bones, water), while BMI does not. This makes body fat a better indicator of health and fitness, especially for individuals with a lot of muscle mass who might be classified as 'overweight' by BMI standards.
How do I take accurate measurements?+
For best results, use a flexible measuring tape and ensure it is snug but not tight. Measure your neck just below the larynx (Adam's apple). For the waist, measure at the narrowest point for females and at the navel level for males. For hips (females), measure at the widest point of the buttocks.