Waist-to-Hip Ratio Calculator
Waist-to-hip ratio and risk category.
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This calculator gives a general estimate and isn't medical advice. It doesn't account for your individual health history — talk to a doctor before making decisions based on it.
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Formula
WHR = waist (cm) ÷ hip (cm)
Waist circumference divided by hip circumference. Higher ratios indicate more abdominal fat relative to hip/gluteal fat — a marker linked to cardiometabolic risk.
Worked example
A man with an 85 cm waist and 95 cm hip measures a WHR of 0.89 — below the 0.90 moderate-risk threshold, classified as low risk on this scale.
Where this can give the wrong answer
- Risk cutoffs differ by sex: men flag moderate above 0.90 and high above 0.95; women moderate above 0.80 and high above 0.85.
- Waist should be measured at the narrowest point or midway between lowest rib and iliac crest — inconsistent technique changes the ratio.
- WHR complements but doesn't replace waist circumference alone; very large hip measurements can mask elevated waist fat.
FAQ
- WHR captures fat distribution, which BMI misses — central adiposity carries higher metabolic risk at the same BMI. Many clinicians use both, plus waist circumference directly.