Waist to Hip Ratio Calculator
Calculate your waist-to-hip ratio (WHR) and see your associated health risk category by sex, per WHO guidelines. Free, private, instant.
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A simple ratio linked to health risk
Where the body stores fat matters for health, and the waist-to-hip ratio captures it in one number. This calculator divides your waist measurement by your hip measurement and shows the associated risk category by sex, giving a quick indicator that weight alone does not provide.
Why distribution matters more than weight
Fat carried around the waist is more strongly linked to health risk than fat carried on the hips, so two people of the same weight can have quite different risk profiles depending on their shape. The waist-to-hip ratio captures that distribution directly, which is why it is used alongside, and sometimes instead of, BMI: it reflects the pattern of fat, not just the amount.
A rough indicator, not a verdict
These are estimates from a standard formula for general information, not medical advice. Individual health depends on far more than any single number, so treat the result as a rough guide and consult a professional for anything that matters. The calculation runs entirely in your browser, so your figures are not uploaded.
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Frequently Asked Questions
What does the waist-to-hip ratio measure?
How your body distributes fat, by dividing your waist measurement by your hip measurement. Fat carried at the waist is more linked to health risk than fat on the hips.
Why use it alongside BMI?
Because BMI measures overall weight relative to height, while the waist-to-hip ratio reflects where fat is carried, which matters for risk and which BMI ignores.
Do the risk bands differ by sex?
Yes. The thresholds differ for men and women, reflecting typical differences in body fat distribution.
How should I measure?
Consistently, at the natural waist and the widest part of the hips, since the ratio depends on measuring the same points each time.
Is this medical advice?
No. It is a general indicator. Consult a professional for a proper assessment.
Privacy & Security
All processing happens locally in your browser — nothing is uploaded.
How to Use
Enter your waist and hip measurements and sex to get your WHR and risk level.
Disclaimer: This tool is provided "as is" without warranty of any kind. Results are for educational and utility purposes.
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