Waist-to-Hip Ratio Calculator
Calculate your waist-to-hip ratio and see which health risk category it falls into.
Waist-to-hip ratio
0.80
Risk category (WHO)
Moderate risk
Based on World Health Organization waist-to-hip ratio thresholds (female: <0.80 low, 0.81–0.85 moderate, >0.85 high; male: <0.90 low, 0.90–1.00 moderate, >1.00 high). This is a general screening estimate, not a medical diagnosis — talk to a healthcare provider about your personal risk.
How the Waist-to-Hip Ratio Calculator works
Enter your waist and hip measurements in the same unit, and the calculator divides waist by hip to get your ratio, then compares it against World Health Organization risk thresholds for your sex.
Because it's a ratio, the specific unit you measure in (inches or centimeters) doesn't change the result — only using the same unit for both measurements matters.
Frequently asked questions
Why does waist-to-hip ratio matter for health?
Research has linked a higher waist-to-hip ratio to increased risk of cardiovascular disease and type 2 diabetes, because it reflects more fat stored around the abdomen (visceral fat), which is more metabolically active than fat stored in the hips and thighs.
How is waist-to-hip ratio different from BMI?
BMI only looks at total weight relative to height and says nothing about where fat is distributed. Waist-to-hip ratio specifically measures body shape, which some research suggests can be a better predictor of certain health risks than BMI alone, especially for people at a similar weight.
Where exactly should I measure my waist and hips?
Measure your waist at the narrowest point, usually just above the belly button, and your hips at the widest point around your buttocks. Keep the tape measure snug but not compressing the skin, and measure both in the same unit (inches or centimeters).