BMI Calculator
Body mass index.
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Waist-to-Hip Ratio Calculator
Divide waist by hip to get your WHR and see the health-risk category.
same units as waist
Waist-to-hip ratio
—
Waist ÷ hip.
| Health risk | — |
|---|---|
| Shape | — |
| Waist | — |
| Hip | — |
Show our math
Enter your figures above to see the step-by-step working.
An estimate — not medical adviceEverything computed client-side — nothing leaves this page
How the Waist-to-Hip Ratio Calculator Works
Where you carry weight matters as much as how much. Waist-to-hip ratio divides your waist measurement by your hip measurement, capturing central (abdominal) fat that’s linked to heart and metabolic risk. Measure both in the same units at the narrowest part of the waist and the widest part of the hips.
The World Health Organization considers risk elevated above about 0.90 for men and 0.85 for women. A higher ratio (an “apple” shape) carries more risk than a lower one (a “pear” shape), independent of overall BMI.
ratio = waist ÷ hip (same units)
Note: an estimate using standard formulas and population averages. It isn’t medical advice — talk to a healthcare professional about your health.
Frequently Asked Questions
How do I measure waist-to-hip ratio?
Measure your waist at its narrowest and your hips at their widest, in the same units, then divide waist by hip.
What is a healthy waist-to-hip ratio?
Below about 0.90 for men and 0.85 for women is considered lower risk by the WHO. Higher ratios indicate more abdominal fat.
Why does it matter alongside BMI?
It captures fat distribution, which BMI misses. Abdominal fat is more strongly tied to heart and metabolic risk than fat elsewhere.
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