Army Body Fat Calculator
Enter your height, neck and waist (and hip for women) in centimetres to estimate body fat using the tape method.
Your details
Result
Estimated body fat (Army tape method)
17.3%
- An estimate. Official Army assessments follow current regulations and may differ.
Good to know: This is an estimate. Official assessments follow current Army regulations and may differ.
Please note: General estimate for information only. This is not medical advice, diagnosis or treatment, and it may not suit your age, health, medication or pregnancy. Never use it to make a medical decision. Talk to a doctor or other qualified health professional about your own situation, and in an emergency call your local emergency number.
About this tool
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
Questions people ask
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.
Can I use inches?
This tool takes centimetres, so convert first.
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How we calculate this
We use the standard published formula or definition for this calculation, and we show the working so you can check it.
Spotted a mistake? Tell us and we'll check it. How we check our calculators