Waist-to-Height Ratio Calculator
A quick health check that often beats BMI — keep waist under half your height.
—Waist-to-height
—Category
How it's calculated
Divides waist circumference by height. The simple, memorable rule: keep your waist under half your height (ratio below 0.5). Because it scales with your frame, this ratio predicts health risk from abdominal fat better than BMI for many people, and works across heights. Measure your waist at the navel, relaxed. Not medical advice.