Waist to Hip Ratio Calculator
Assess your metabolic and cardiovascular health risk based on where your body stores fat — a better predictor than BMI alone.
Waist to Hip Ratio Calculator
WHO health risk classification
Waist-to-Hip Ratio (WHR) measures fat distribution — specifically how much visceral fat (around the organs) you carry relative to subcutaneous fat. Visceral fat is metabolically active and strongly linked to cardiovascular disease, type 2 diabetes, and hypertension.
Formula: WHR = waist circumference ÷ hip circumference. Measure waist at narrowest point, hip at broadest.
WHO Risk Classification
| WHR | Men — Risk | Women — Risk |
|---|---|---|
| Below 0.90 (M) / 0.80 (W) | Low | Low |
| 0.90–0.99 (M) / 0.80–0.84 (W) | Moderate | Moderate |
| 1.00+ (M) / 0.85+ (W) | High | High |
Why Waist-to-Hip Ratio Is a Better Health Marker Than BMI
Waist-to-hip ratio (WHR) measures the relative distribution of fat between the abdominal region and the hips — a distinction that is critically important for cardiovascular and metabolic health. Not all body fat is equal: visceral fat (deep abdominal fat surrounding organs, reflected by waist circumference) is metabolically active, pro-inflammatory, and strongly associated with type 2 diabetes, cardiovascular disease, hypertension, and all-cause mortality. Subcutaneous fat stored in the hips and thighs is comparatively benign and in some research is actually protective against metabolic disease.
The World Health Organization (WHO) defines abdominal obesity as a WHR above 0.90 for men and 0.85 for women, thresholds associated with substantially elevated cardiovascular risk independent of total body weight or BMI. WHR predicts cardiovascular events better than BMI in multiple large-scale epidemiological studies, including the INTERHEART study (52 countries, 27,000 participants), which found WHR to be the strongest modifiable predictor of acute myocardial infarction globally. This makes WHR one of the most powerful and accessible body composition health screening tools available — requiring only a flexible tape measure.
For athletes, WHR tracks abdominal fat loss independently of scale weight changes. During a body recomposition phase, scale weight may remain stable while waist circumference decreases and hip/thigh measurements hold steady — a scenario where WHR improvements show progress that BMI would mask entirely. Measure waist at the narrowest point (typically between the lowest rib and the top of the hip bone), and hips at the widest point (fullest part of the buttocks). Both measurements should be taken standing, relaxed (not sucking in), with the tape parallel to the floor and snug but not compressing tissue.
WHR vs. Waist Circumference Alone
Research suggests that waist circumference alone may be as predictive as WHR for cardiovascular risk. Men above 102 cm waist and women above 88 cm are in a high-risk category regardless of hip size. Use both metrics together for the most complete picture.