Body Fat Calculator
Use the US Navy method with neck, waist, and hip measurements.
Estimate body fat from measurements.
How to use
- Select sex and enter height.
- Measure neck, waist, and hip circumference per instructions.
- Enter measurements in inches or centimeters.
- View estimated body fat percentage.
About Body Fat Calculator
Estimate body fat from measurements.
Runs in your browser — your files and input stay on your device.
Frequently asked questions
How accurate is the Navy method?
It is an estimate. DEXA or professional assessment is more accurate.
Is this medical advice?
No.
Is data stored?
No.