Body Fat Percentage Calculator
Estimate body fat percentage using the US Navy method.
Runs in your browser — files never leave your device
Body fat
18.4%
How it works
Enter your measurements to estimate body fat percentage with the US Navy circumference method.
Frequently asked questions
- How accurate is the Navy method?
- It’s a good estimate from tape measurements but less precise than DEXA or calipers.
- Is my data uploaded?
- No — it’s calculated in your browser.
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