Body Fat Calculator
Enter a few body measurements to estimate your body fat percentage using the U.S. Navy method.
Fill in your measurements to estimate body fat.
⚕️ For general information only — not medical advice.
About body fat percentage
Body fat percentage is often a more useful measure of fitness than weight alone. The U.S. Navy method estimates it from simple tape measurements you can take at home, making it an easy way to track changes over time as you train.
Frequently asked questions
How accurate is the U.S. Navy method?
It’s a widely used estimate based on tape measurements and is reasonably accurate for most people, though not as precise as a clinical body-composition scan.
Where do I measure?
Neck: just below the larynx. Waist: at the navel (men) or the narrowest point (women). Hip (women): at the widest point. Measure relaxed, without pulling the tape tight.
Is this medical advice?
No — it’s an estimate for general information only.
Related tools
Try the BMI Calculator or Calorie Calculator.