Waist-to-Height Ratio Calculator
Units
Your WHtR
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Category
Enter height and waist
Guideline
Keep your waist below half your height (WHtR < 0.5) for a generally healthy range.
About This Calculator
This calculator computes your waist-to-height ratio by simply dividing waist circumference by height, both in the same unit. Research published in journals like Obesity Reviews suggests that WHtR is a stronger predictor of cardiometabolic risk than BMI alone because it specifically reflects central (abdominal) fat distribution. The general guideline is to keep your waist below half your height (WHtR under 0.5). It is useful for a quick self-check between medical visits, and because the ratio is unitless, you can measure in either centimeters or inches and get the same result.
FAQ
What is WHtR?
Waist-to-height ratio (WHtR) compares your waist circumference to your height. It's unitless and can correlate with central fat and cardiometabolic risk.
What are common categories?
Many references use approximate cutoffs: Healthy: 0.35–0.49; Increased risk: 0.50–0.59; High risk: ≥0.60. Below ~0.35 may suggest underweight.
How do I measure waist?
Measure at the narrowest point between the ribs and hips (or at the navel level), relaxed, after a normal exhale.