Comprehensive Calculator Guide
The waist-to-hip ratio divides your waist by your hips and shows how body fat is distributed. The World Health Organization links a ratio of 0.85 or more in women and 0.90 or more in men with a higher risk of metabolic complications. A woman with an 80 cm waist and 100 cm hips has a ratio of 0.80.
Measuring and reading the ratio
Fat around the abdomen is more closely tied to heart disease and type 2 diabetes than fat on the hips and thighs, so two people with the same weight can carry different risks. Measure the waist midway between the lowest rib and the top of the hip bone, and the hips at the widest part of the buttocks, with a snug but not tight tape.
The ratio is a screening indicator, not a diagnosis, and is less reliable in pregnancy and childhood. If yours is above the threshold, discuss it with a doctor alongside blood pressure and blood sugar.
How to Use
- 01Choose your sex.
- 02Enter waist and hip measurements in the same unit.
- 03Read the ratio and the threshold for your sex.
Formula Used
Waist-to-hip ratio = waist ÷ hipsPractical Examples
Example 1: a woman
Waist 80 cm, hips 100 cm: 0.80, below 0.85.
Example 2: a man
Waist 95 cm, hips 100 cm: 0.95, above 0.90.
Important Tips
- Measure at the same time of day to track changes.
Common Mistakes to Avoid
- Measuring the waist at its narrowest point.
- Pulling the tape tight or holding your breath.
Frequently Asked Questions
- What is a healthy waist-to-hip ratio?
- Below 0.85 for women and below 0.90 for men, per the WHO.
- Where do I measure my waist?
- Midway between the lowest rib and the top of the hip bone.
- Is it better than BMI?
- It measures fat distribution rather than weight; the two work well together.