Health & fitness
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Health & fitness
Body fat calculator
Estimate body fat percentage with the US Navy circumference formula.
Your result
Complete the fields and calculate.
Example
Body fat calculator
Measure waist, neck and height under consistent conditions.
FAQ
Frequently asked questions
How accurate is the result?+
The calculator uses the stated formula and only rounds the display. Accuracy depends on your inputs.
Is this calculator really free?+
Yes. Use it as often as you like without an account or registration.
Are my entries stored?+
The calculation runs directly in your browser. Calculator values are stored locally only when you explicitly add a result to “My results”. Favourites and history also remain locally on your device.