Waist-to-Hip Ratio Calculator
Assess your cardiovascular risk from waist and hip measurements.
This tool is for informational and educational purposes only. It is not a substitute for professional financial, medical, legal, or engineering advice. See Terms of Service.
Can't find what you need?
Request a ToolHow to Use the Waist-to-Hip Ratio Calculator
The waist-to-hip ratio (WHR) is a simple but powerful health screening tool recommended by the World Health Organization. Here is how to measure accurately:
- Measure your waist. Find the narrowest part of your torso, typically 1 inch above your navel. Stand straight, exhale normally, and measure without pulling in your stomach.
- Measure your hips. Stand with feet together and measure around the widest part of the hips and buttocks, keeping the tape horizontal.
- Select your sex. The WHO uses different risk thresholds for men and women based on differences in fat distribution and cardiovascular risk data.
- Read your result. The ratio and risk category appear instantly. Below the result card, the full threshold table shows the cutoff values for each risk level.
About Waist-to-Hip Ratio and Health Risk
WHR is a measure of central adiposity, which is the accumulation of fat around the abdomen (visceral fat). Visceral fat is metabolically active and associated with higher levels of inflammatory markers, insulin resistance, and cardiovascular disease risk compared to subcutaneous fat stored in the hips and thighs.
The WHO defines high risk as WHR above 1.0 for men and above 0.85 for women. Studies show that WHR predicts cardiovascular events independently of BMI, making it a valuable complement to standard weight-based measures. A person with a normal BMI but high WHR still faces elevated metabolic risk.
Frequently Asked Questions
What is a healthy waist-to-hip ratio?
According to the World Health Organization, a healthy WHR is below 0.90 for men and below 0.80 for women. Values between 0.90 and 0.99 for men (0.80 to 0.85 for women) indicate moderate risk. Values of 1.0 or above for men (0.86 or above for women) indicate high cardiovascular and metabolic risk. These thresholds are based on population studies linking WHR to cardiovascular events and type 2 diabetes incidence.
Is waist-to-hip ratio better than BMI?
WHR and BMI measure different things. BMI measures weight relative to height and is a proxy for overall fatness. WHR measures the distribution of fat, specifically how much is around the abdomen versus the hips. Research suggests WHR is a better predictor of cardiovascular events and metabolic disease than BMI alone, particularly in people with normal BMI but high abdominal fat. Using both measures together provides a more complete picture of metabolic risk than either one alone.
Can exercise change my waist-to-hip ratio?
Yes. Aerobic exercise and caloric restriction preferentially reduce visceral (abdominal) fat, which decreases waist circumference. Resistance training can increase hip circumference by building gluteal and hip muscles. Both effects move the WHR in a favorable direction. Studies on intervention programs combining diet and exercise show WHR reductions of 0.02 to 0.06 over 3 to 6 months, which can shift someone from high risk to moderate or low risk categories.
Why do men and women have different WHR thresholds?
Women naturally have proportionally larger hips than men due to the anatomical requirements of childbearing and hormonal differences in fat distribution. Estrogen promotes subcutaneous fat storage in the hips and thighs, which is metabolically less harmful than visceral fat. As a result, women can have a lower WHR at the same level of metabolic risk. The different thresholds reflect this biological difference and ensure the risk categories are equally meaningful across sexes.