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Body Fat Calculator

Health
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Estimates the percentage of body weight that is fat, using the Navy method for men and women, and the YMCA formula for men.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Gender, Neck Circumference (inches), Waist Circumference (inches), Hip Circumference (inches), and Height (inches) in the units shown.

Step 2

Read Body Fat Percentage (Navy Method) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Average Male

Gender: Male; Neck Circumference (inches): 15; Waist Circumference (inches): 35; Hip Circumference (inches): 40; Height (inches): 70

Body Fat Percentage (Navy Method): 12.9 %

Fit Male

Gender: Male; Neck Circumference (inches): 16; Waist Circumference (inches): 32; Hip Circumference (inches): 38; Height (inches): 72

Body Fat Percentage (Navy Method): 4.2 %

Average Female

Gender: Female; Neck Circumference (inches): 13; Waist Circumference (inches): 32; Hip Circumference (inches): 40; Height (inches): 65

Body Fat Percentage (Navy Method): 9.8 %

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Important

Use the result as an estimate and confirm any medical decisions with a qualified professional.