Waist-to-hip and waist-to-height ratio
Work out your waist-to-hip ratio (WHR) and waist-to-height ratio (WHtR) and see the cardiovascular risk from abdominal fat, using the WHO cutoffs.
How to useWaist-to-hip ratio calculator
Available in: 
Waist-to-hip and waist-to-height ratio: what it is for
Enter your waist, hips, height and sex. The tool calculates the waist-to-hip ratio and the waist-to-height ratio and compares your waist circumference with the WHO cutoffs, showing whether each value is healthy or indicates increased risk.
Use centimeters for all three measurements (1 in = 2.54 cm); the ratios are the same in any unit.
How to use
- Measure your waist, hips and height.
- Choose your sex.
- See the ratios and the classification.
When to use it
- Tracking abdominal fat.
- Complementing BMI.
- Health and nutrition assessments.
Frequently asked questions
What is a healthy waist-to-hip ratio?
According to the WHO, abdominal fat indicates an increased risk of metabolic disease when the waist-to-hip ratio is 0.90 or more in men and 0.85 or more in women.
What about the waist-to-height ratio?
It is the waist circumference divided by height. Values below 0.5 are considered healthy; the rule of thumb is to keep your waist smaller than half your height.
How do I measure my waist and hips?
Measure the waist at the midpoint between the lowest rib and the top of the hip bone, at the end of a normal breath out. The hips are measured at the widest part of the buttocks, with the tape parallel to the floor.
Is it really free?
Yes, 100% free. No sign-up, no subscription and no usage limits. All Tools123 tools are free and run right in your browser.