Waist-to-Hip Ratio Calculator
Calculate your waist-to-hip ratio (WHR) and see your health risk category according to WHO guidelines. Supports centimetres and inches.
Measure at the narrowest point / navel
Measure at the widest point
Enter waist and hip measurements to calculate your WHR.
WHO Risk Thresholds
| Risk Level | Men (WHR) | Women (WHR) |
|---|---|---|
| Low | ≤ 0.90 | ≤ 0.80 |
| Moderate | 0.91–0.99 | 0.81–0.84 |
| High | ≥ 1.00 | ≥ 0.85 |
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WHR Formula & WHO Thresholds
WHR = Waist Circumference ÷ Hip Circumference
| Sex | Low Risk | Moderate Risk | High Risk |
|---|---|---|---|
| Male | < 0.90 | 0.90 – 0.99 | ≥ 1.00 |
| Female | < 0.80 | 0.80 – 0.84 | ≥ 0.85 |
Why Fat Distribution Matters
Visceral fat — the fat stored around the internal organs in the abdominal cavity — is metabolically active and releases inflammatory compounds linked to insulin resistance, type 2 diabetes, and cardiovascular disease.
Subcutaneous fat stored on the hips and thighs (pear shape) is less metabolically active and poses lower cardiovascular risk. WHR is a simple proxy for this distinction that does not require body composition scanning.