Waist to Hip Ratio Calculator
Where you carry fat matters. Your waist-to-hip ratio shows whether more of it sits around your middle, which the WHO links to a higher risk of metabolic problems.
Your details
Your results
Enter your waist and hip measurements.
Waist-to-hip ratio
- WHO cut-off
- Waist on its own
| Measure | Men | Women |
|---|---|---|
| Waist-to-hip ratio, substantially increased | 0.90 or more | 0.85 or more |
| Waist, increased | Over 94 cm (37 in) | Over 80 cm (31.5 in) |
| Waist, substantially increased | Over 102 cm (40 in) | Over 88 cm (34.6 in) |
How to use it
- Pick your sex.
- Measure your waist halfway between your lowest rib and the top of your hip bone, and your hips around the widest part of your buttocks.
- Read your ratio and how it compares with the WHO cut-off. Your waist is also checked on its own.
How it's calculated
The ratio. Waist divided by hips, both in the same units:
waist-to-hip ratio = waist ÷ hips
The calculator compares the unrounded ratio with the cutoff and shows extra precision near it.
WHO cut-offs. From the WHO expert consultation on waist circumference and waist–hip ratio (2008, published 2011):
| Measure | Men | Women |
|---|---|---|
| Waist-to-hip ratio, substantially increased risk | 0.90 or more | 0.85 or more |
| Waist, increased risk | Over 94 cm | Over 80 cm |
| Waist, substantially increased risk | Over 102 cm | Over 88 cm |
“Risk” here means the risk of metabolic complications, such as type 2 diabetes and heart disease. Inches are converted to centimeters first.
Limits. The WHO notes that cut-offs may differ by population and age. A tape placed a little higher or lower changes the result, so measure the same way each time.
Sources
Questions
What is a healthy waist-to-hip ratio?
The WHO links a ratio of 0.90 or more in men and 0.85 or more in women with a substantially increased risk of metabolic complications, such as type 2 diabetes. Below those values, the ratio isn't flagged.
Why check my waist on its own too?
The WHO uses both. A large waist adds risk even when your hips are large too, which can keep the ratio low. Both cut-offs are shown so you get the full picture.
Is waist-to-hip ratio better than waist-to-height ratio?
They measure similar things. NICE in the UK prefers waist-to-height ratio because it's simple and uses one set of cut-offs for everyone. Using both doesn't hurt.
Do the cut-offs apply to everyone?
The WHO notes that the right cut-offs can differ between populations. The waist values shown are the ones most widely used for people of European descent; several Asian countries use lower ones.
Updated November 9, 2026.