Body Fat Calculator
Body fat percentage estimate using the US Navy method.
How to use it
- Choose units and sex.
- Measure your height, neck, and waist, plus hip if female.
- Read the estimated body fat percentage.
About this tool
This estimates body fat percentage from body measurements using the US Navy circumference method. It needs height, neck, and waist, plus hip for women. Circumference methods are convenient but have a wide error margin and are not a substitute for a direct measurement. The result is a rough estimate, not medical advice. A healthcare professional can give an accurate assessment.
Examples
Male, 178 cm, neck 38, waist 85Roughly 16 to 18 percentFemale, 165 cm, neck 32, waist 74, hip 96Roughly 26 to 28 percentCommon uses
- Get a rough body fat estimate at home
- Track a measurement based estimate over time
- Compare with other estimation methods
- Have a number before a professional assessment
FAQ
Are my measurements uploaded?
How accurate is it?
Is this medical advice?
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