Body Fat Calculator
Estimate your body fat percentage using the US Navy method. This calculation uses your measurements to provide an approximation without specialized equipment.
Measure below the Adam's apple
Measure at navel level
Enter your measurements to estimate body fat percentage.
How It Works
This calculator uses the US Navy circumference method, which estimates body fat based on neck, waist, and hip measurements. While not as accurate as DEXA scans or hydrostatic weighing, it provides a reasonable estimate using just a tape measure.
Frequently Asked Questions
How accurate is this method?
The Navy method is typically accurate within 3-4% of actual body fat. For more precision, consider DEXA scans, hydrostatic weighing, or professional caliper measurements.
How do I measure correctly?
Use a flexible tape measure. Keep it level and snug but not compressing skin. Neck: below Adam's apple at narrowest point. Waist: at navel level. Hips: at widest point of buttocks.
What's a healthy body fat percentage?
For men, 10-20% is generally healthy. For women, 18-28% is typical. Athletes often aim for lower percentages. Essential fat (needed for basic function) is about 3% for men and 12% for women.