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Waist-to-Height Ratio Calculator
Calculate your waist-to-height ratio —a simpler and potentially more accurate health risk indicator than BMI. A ratio above 0.5 may indicate increased health risk.
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Waist-to-height ratio
Health risk
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How waist-to-height works
Waist (narrowest point) divided by height. Threshold ~0.5 for both genders. Better than BMI for predicting abdominal fat — not confounded by muscle mass. Correlates strongly with cardiovascular and diabetes risk.
Frequently asked questions
How accurate are the results?
Formulas used here are validated in population studies but cannot account for individual genetics, body composition, or medical conditions. Treat results as a starting point, not a medical diagnosis.
Should I consult a professional?
If you have specific health concerns, existing conditions, or are planning significant lifestyle changes, consult a qualified healthcare provider (doctor, dietitian, physiologist).
How often should I recalculate?
Recalculate when your weight changes more than 5%, activity level shifts significantly, or every 3-6 months for routine monitoring. Results are snapshots — your body changes daily.
About the Waist-to-Height Ratio
Free waist-to-height ratio calculator. More accurate than BMI for health risk assessment in many people — measure waist and height only. The tool runs entirely in your browser, so nothing you enter is uploaded or stored.
How to use the Waist-to-Height Ratio
- Waist circumference (cm) — your waist circumference in cm.
- Height (cm) — your height in cm.
Last updated
For general wellness information only, not medical advice — see our disclaimer.