Health & Fitness
Waist-to-Hip Ratio Calculator - WHR Health Risk
Calculate your waist-to-hip ratio (WHR) and see your cardiovascular health risk category (low, moderate, high) according to WHO guidelines. Supports inches and centimetres.
Narrowest point, usually just above navel
Widest point around buttocks
| Field | Value |
|---|---|
| Current value | 0.85 |
| Range | 0.00 – 1.50 |
| Category | Low |
WHO Reference Thresholds
What Is Waist-to-Hip Ratio?
Waist-to-hip ratio (WHR) is a simple measurement that indicates where body fat is distributed. It is calculated by dividing your waist circumference by your hip circumference. A higher ratio indicates more abdominal (visceral) fat, which is associated with greater health risks.
Why WHR Matters
Research shows that people who carry excess fat around their abdomen (apple-shaped) face higher risks of type 2 diabetes, cardiovascular disease, and metabolic syndrome than people who carry fat around the hips and thighs (pear-shaped), even at the same BMI.
WHO Guidelines
The World Health Organization defines high cardiovascular risk as WHR > 0.90 for men and WHR > 0.85 for women. These thresholds are widely used in clinical research and public health studies.
Limitations
WHR is a screening tool, not a diagnostic measure. Ethnic differences, age, and measurement technique can all affect results. Consult a healthcare professional for a comprehensive health assessment.
How to measure correctly
- Waist: measure at the narrowest point between your lower rib and navel. Breathe normally; do not suck in.
- Hips: measure at the widest point across the buttocks, typically about 7–10 inches below the waist.
- Keep the tape horizontal and snug but not compressing the skin.
- Do not measure over bulky clothing.
- Common errors: measuring hips too high, or measuring waist at the navel rather than the narrowest point.
WHR vs. WHtR comparison
WHR (waist ÷ hips) captures fat distribution - the ratio of central to peripheral fat. WHtR (waist ÷ height) captures central adiposity relative to body size. Meta-analyses suggest WHtR is a slightly stronger predictor of cardiovascular risk because it accounts for height. WHO WHR thresholds: high risk at >0.90 for men, >0.85 for women; WHtR high risk at >0.5 for both.
Pregnancy and WHR
WHR is not a valid measurement during or immediately after pregnancy. Waist and hip dimensions change significantly during pregnancy, and postpartum fat redistribution can persist for up to 12 months. Interpret any WHR values from this period with caution and consult a healthcare provider.