Waist-to-Hip Ratio
The WHO treats 0.90 for men and 0.85 for women as abdominal obesity. At the same BMI, a higher ratio carries greater cardiovascular risk.
Your numbers
Waist-hip ratio
0.885
Difference
11cm
What it means
0.885 is below the 0.9 threshold.
Formula
Waist-hip ratio = Waist (cm) ÷ Hip (cm)
Measure the waist at navel height and the hips at their widest point, after breathing out.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| Waist (cm)Waist at navel height, measured after breathing out. | 85 | 40 ~ 200 |
| Hip (cm)Hip circumference at its widest point. | 96 | 40 ~ 200 |
| Sex (M1 / F0)Where the formula splits by sex — enter 1 for male, 0 for female. | 1 | 0 ~ 1 |
Step by step
Quick reference table
Results when only Waist (cm) changes and everything else stays put.
| Waist (cm) | Waist-hip ratio | Difference (cm) |
|---|---|---|
| 42.5 | 0.443 | 53.5 |
| 63.8 | 0.665 | 32.2 |
| 85 | 0.885 | 11 |
| 128 | 1.333 | -32 |
| 170 | 1.771 | -74 |
What each result means
| Result | At default values |
|---|---|
| Waist-hip ratioWaist over hip — it shows where the fat sits, not how much. | 0.885 |
| Difference (cm)The gap between two values — a quantity, not a rate. | 11 |
Common mistakes
Measure the waist at navel height and the hips at their widest point, after breathing out.
Glossary
- Waist (cm)
- Waist at navel height, measured after breathing out.
- Hip (cm)
- Hip circumference at its widest point.
- Sex (M1 / F0)
- Where the formula splits by sex — enter 1 for male, 0 for female.
- Waist-hip ratio
- Waist over hip — it shows where the fat sits, not how much.
- Difference
- The gap between two values — a quantity, not a rate.
Frequently asked questions
Q. How is Waist-to-Hip Ratio calculated?
Waist-hip ratio = Waist (cm) ÷ Hip (cm) — The WHO treats 0.90 for men and 0.85 for women as abdominal obesity. At the same BMI, a higher ratio carries greater cardiovascular risk.
Q. Can you walk through an example?
With Waist (cm) 85, Hip (cm) 96, Sex (M1 / F0) 1, the answer is Waist-hip ratio 0.885.
Q. What do I need to enter?
Enter Waist (cm), Hip (cm), Sex (M1 / F0). The result recalculates as you type, and an empty box counts as zero.
Q. How much does the answer move if I change a number?
Changing only Waist (cm) moves the answer to Waist (cm) 42.5 → Waist-hip ratio 0.443 and Waist (cm) 170 → Waist-hip ratio 1.771. The table below lays out five steps.
Q. How are the numbers rounded?
Money is shown to the nearest whole unit, percentages to one decimal place and everything else to two. What you see is rounded; the calculation itself carries the unrounded value forward.
Q. Anything to watch out for?
Measure the waist at navel height and the hips at their widest point, after breathing out.
Related calculators
These calculators help you understand health figures; they do not replace diagnosis or prescription. See a clinician if you have symptoms.