Waist to Height Ratio Calculator
Calculate your waist-to-height ratio (WHtR): a better health-risk indicator than BMI. See your ratio and the recommended target.
About this tool
Waist-to-height ratio is the simplest strong health signal you can measure at home: keep your waist under half your height. This calculator gives the ratio and the target in centimeters.
It catches the risk BMI misses — normal-weight people with central fat. Five seconds with a tape measure beats a scale for tracking the trend that matters.
FAQ
Why use waist-to-height instead of BMI?
WHtR captures central fat, which correlates better with metabolic risk. The simple rule: keep your waist under half your height.
Where do I measure?
At the navel, relaxed, after exhaling normally — not sucking in. Same spot every time for comparability.
What is a healthy ratio?
Below 0.5 for adults under 40; below 0.6 for ages 50+ is often cited. Lower is generally better within a healthy range.