What the numbers mean
The World Health Organization says a waist-to-hip ratio above 0.90 for men or 0.85 for women is linked with a substantially higher risk of metabolic problems such as type 2 diabetes and heart disease. Fat stored around the belly is more closely linked to these risks than fat on the hips and thighs.
A simple extra check is the waist-to-height ratio: keeping your waist to less than half your height (under 0.5) is widely recommended.
How to measure
- Waist: midway between your lowest rib and the top of your hip bone, after breathing out.
- Hips: around the widest part of your buttocks.
- Keep the tape snug but not tight, and parallel to the floor.
Sources & review
Checked against these sources on November 10, 2026. Rules and rates can change — always confirm with the official source.
Waist-to-Hip Ratio Calculator FAQs
Is waist-to-hip ratio better than BMI?
They measure different things. BMI looks at total weight; waist measures where fat is stored. Using both gives a better picture.
Can I lower my ratio?
Regular activity, a balanced diet, enough sleep and less alcohol can reduce belly fat over time.
Is my information stored?
No.