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Body Fat Calculator
body fat · navy · fitness · health · 体脂肪
US Navy circumference method · estimate only, not medical advice.
How to use
- 1
Choose your sex.
- 2
Enter height, neck and waist (hip for female).
- 3
See your estimated body-fat % and category.
FAQ
Is this tool free?
Yes — no sign-up, no installation, completely free to use right away.
What is this tool?
This tool estimates your body fat percentage from a few simple measurements. It gives you a clearer picture of your body composition than weight alone. It's useful for tracking fitness progress over time instead of just watching the scale. Your measurements aren't stored and the result is calculated right in your browser.
Is it accurate?
It is a good estimate but less precise than a body scan. Not medical advice.