Body Fat Calculator (US Navy Method)
Estimate body fat percentage with the US Navy tape method. Metric measurements with category results. Free and private.
Frequently asked questions
- Which method does it use?
- The US Navy circumference method, which estimates body fat from height, neck, waist and for women hip measurements.
- How accurate is it?
- Within roughly three to four percent for most people. Methods like DEXA or hydrostatic weighing are more precise.
- Which measurements do I need?
- Men: height, neck and waist. Women: height, neck, waist and hips, all in centimeters.
- Is my data private?
- Yes. Measurements stay in your browser and nothing is uploaded.
This tool runs entirely in your browser. No data is uploaded anywhere.