About the Waist-to-Hip Ratio Calculator
Where the body stores fat matters as much as how much fat it stores. Fat carried around the abdomen ("apple" shaped) is more strongly linked to cardiovascular and metabolic risk than fat carried around the hips and thighs ("pear" shaped), which is why waist-to-hip ratio is used as a quick, low-cost screening indicator alongside BMI.
This calculator divides waist circumference by hip circumference and compares the result against World Health Organization reference ranges, which differ by sex due to natural differences in fat distribution patterns between men and women.
Frequently Asked Questions
How is waist-to-hip ratio different from BMI?
BMI measures overall body mass relative to height and doesn't account for fat distribution. Two people with identical BMI can have very different waist-to-hip ratios and correspondingly different health risk profiles.
Where exactly should I measure my hips?
Measure at the widest point around your buttocks, keeping the tape level and parallel to the floor, without compressing the skin.
Can waist-to-hip ratio change without changing overall body weight?
Yes — fat distribution can shift with age, hormonal changes, and lifestyle factors even when total body weight remains stable, which is part of why this ratio is tracked as its own separate metric.