Body Fat Calculator

Estimate body fat % using the US Navy method.

Body Fat Calculator

This calculator estimates body fat using the U.S. Navy method (circumference) and also shows a BMI-based estimate for comparison. Results are screening estimates only — not a clinical diagnosis.

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Modify the values and click the Calculate button to use

Enter measurements and click Calculate to see Navy body fat %, category meter, lean mass, and BMI-method comparison.

Informational only — not medical advice. Results are estimates. Consult a qualified clinician for health decisions.

What Is Body Fat Calculator?

Circumference methods are estimates only.

How to Use Body Fat Calculator

Enter sex, height, waist, neck (and hips for women).

How Does Body Fat Calculator Work?

Circumference methods are estimates only.

Formula

US Navy circumference formula

Important Notes

Results depend on the inputs and assumptions shown on this page. Construction and finance figures are estimates. Islamic calendar conversions follow a documented algorithm and may differ from local moon sighting. Health-related tools are informational only.

Frequently Asked Questions

What is Body Fat Calculator?+

US Navy circumference body-fat estimate.

How do I use Body Fat Calculator on Pedzah?+

Enter sex, height, waist, neck (and hips for women).

Body Fat Calculator