Body Fat Calculator
Estimate your body fat percentage using the U.S. Navy method.
📊 Result Chart
About Body Fat Calculator
The Body Fat Calculator is a free online tool that estimates your body fat percentage using the U.S. Navy method. By entering your height, weight, and waist circumference, you can get an approximation of your body fat percentage, fat mass, and lean body mass. Works on mobile and desktop, all calculations run locally in your browser.
Body Fat Calculator in 3 steps
- Enter your height in centimeters
- Enter your weight in kilograms
- Enter your waist circumference in cm, then click "Calculate"
What is the U.S. Navy method?
The U.S. Navy method estimates body fat using circumference measurements. This simplified version uses height and waist circumference for a quick approximation.
How accurate is this calculator?
This calculator provides an estimate based on a formula. For precise body composition analysis, consult a healthcare professional or use methods like DEXA scans.
Is this calculator free?
Yes, completely free. No sign-up or download needed.
Is my data safe?
Absolutely. All calculations run locally in your browser. No data is uploaded to any server.