How do I measure for the tape test?

Measure in a relaxed stance without compressing the skin, and take each measurement more than once.

Is this the official Army calculator?

No. It uses a published tape-method formula. Check official guidance for current standards.

This tool takes centimetres, so convert first.

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Army Body Fat Calculator

Enter your height, neck and waist (and hip for women) in centimetres to estimate body fat using the tape method.

Measurements (cm)

Sex

Height

Neck

Waist

Body fat percentage from the US Army circumference (tape) method using height, neck, waist and — for women — hip measurements.

Formula

men: 86.010 × log10(waist − neck) − 70.041 × log10(height) + 36.76; women: 163.205 × log10(waist + hip − neck) − 97.684 × log10(height) − 78.387 (inches).

Reference Values

•Male limits roughly 20–26% by age
•Female limits roughly 30–36% by age
•Enter centimetres — the tool converts

FAQ

Common questions about Army Body Fat Calculator

How we calculate this

We use the standard published formula for this calculation, and we show the working so you can check it.

Spotted a mistake? Tell us and we'll check it within a few days. See how we check our calculators.

Medical disclaimer

This tool gives a general estimate for information only. It is not medical advice and cannot diagnose a condition. Talk to a doctor, midwife or other qualified professional about your own situation.