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Waist-to-Height Ratio Calculator
Divide waist by height to gauge health risk — aim for under 0.5.
Waist-to-height ratio
—
WHtR.
| Category | — |
|---|---|
| Waist | — |
| Height | — |
| Healthy waist < | — |
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Enter your figures above to see the step-by-step working.
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How the Waist-to-Height Ratio Calculator Works
Waist-to-height ratio (WHtR) is simply your waist measurement divided by your height, and research increasingly finds it a better warning sign of health risk than BMI because it targets belly fat. The simple rule: keep your waist to less than half your height, i.e. a ratio under 0.5.
Measure your waist at the navel, relaxed, in the same units as your height. A ratio of 0.4–0.5 is healthy; above 0.6 signals substantially raised risk.
WHtR = waist ÷ height (aim for under 0.5)
Frequently Asked Questions
What is a healthy waist-to-height ratio?
Below 0.5 — your waist should be less than half your height. 0.5–0.6 is raised risk and above 0.6 is high.
Is waist-to-height better than BMI?
Many studies say yes for predicting heart and metabolic risk, because it reflects central (belly) fat, which BMI ignores.
Where do I measure my waist?
Around the navel, standing relaxed, without pulling the tape tight — in the same units as your height.
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