Waist-to-Hip Ratio Calculator
Calculate your waist-to-hip ratio and risk category.
General information only, based on WHO ratio thresholds. Not medical advice.
Recommended next steps
Related tools
Compute body mass index from height and weight.
Estimate a target weight range from height using the Devine formula.
Estimate total daily energy expenditure from BMR and activity.
Frequently asked questions
Measure your waist at the narrowest point, usually just above the belly button, with the tape snug but not compressing the skin. Measure your hips at the widest point of your buttocks. Keep the tape level and breathe normally, then divide the waist measurement by the hip measurement.
Using the World Health Organization thresholds, men are considered low risk below 0.90 and increased risk at 1.00 or above, while women are low risk below 0.80 and increased risk at 0.85 or above. These are general population guidelines, not a diagnosis.
No. Waist-to-hip ratio is a unitless number, so as long as you measure both your waist and your hips in the same unit, the ratio is identical. The unit toggle in this tool only changes the labels, not the result.
No. The calculation runs entirely in your browser using JavaScript. The measurements you enter are never uploaded, saved, or shared, and they disappear when you close the page.
Last updated 2026-06-23.