Body Fat Calculator (US Navy)
Estimate body fat with the US Navy method from neck / waist / hip and height, with male / female variants for fitness reference.
How to use Body Fat Calculator (US Navy)
- Select gender and enter height, waist and neck (women add hip)
- Click Estimate to get body fat and a reference range
- Copy the result
Features
- Everything runs in your browser - pasted content never leaves your device
- No sign-up or login; open the page and use it, equally handy on mobile
- All processing is UTF-8 byte based, so Chinese text stays clean
FAQ
- Is this tool free?
- Completely free, no sign-up or login, unlimited uses.
- Will my data be uploaded?
- No. All computation runs locally in your browser; your input never leaves your device.
- How do I use it?
- Fill in the box above, click the matching button to get the result, then click Copy to take it away.
- Is the result accurate?
- The Navy method is a common estimation formula for reference only and does not replace professional measurement.