Health & Fitness
Body Fat Calculator - Body Fat Percentage
Estimate body fat percentage using the U.S. Navy circumference method.
Created and maintained by: CalcTago Editorial TeamLast updated: 2026-02-13
Formulas and edge cases are reviewed against authoritative references before publication. For methodology, editorial standards, or corrections, use the links below.
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Frequently asked questions
Which method is used?
This calculator uses the U.S. Navy circumference method.
Why does it ask for hip measurement?
Hip measurement is used for female body fat estimation.
Is this precise?
It is an estimate; accuracy depends on measurement quality.
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About this tool
This Body Fat Calculator turns your inputs into practical results. Provide Sex, Height, and Neck to calculate Body fat.
Adjust values to compare scenarios and see how sensitive the result is. The calculation uses the numbers as entered, so double-check units and expect small differences from rounding in the displayed totals.