Waist-to-Hip Ratio with Measurement Context
Calculate waist divided by hip circumference, a dimensionless ratio. WHO’s report considers measurement methods and sex, age and ethnic variation, so one number or boundary cannot establish personal health.
- Runs in your browser
- Nothing is uploaded
- No signup; device limits apply
Numbers stay on your device. Nothing is sent to a server.
How to use this tool
Measure waist and hips in the same unit and select the sex-related reference. Mixing centimetres and inches distorts the ratio; tape position, breathing and pressure also affect measurements.
Results and examples
The implementation flags 0.90 for male and 0.85 for female as reference boundaries. Detailed report protocols and population applicability remain to be checked before any clinical-risk interpretation.
Worked example
A 74 cm waist divided by 96 cm hips gives approximately 0.771.
Limitations
- Pregnancy, body shape, age-specific applicability and medical history are excluded.
- The WHO report’s detailed boundary tables and protocols still need review.
Fields
| Field | Guidance and constraints |
|---|---|
| Units | kg and cm / lb and inches |
| Sex | Female / Male |
| Waist | Accepted range: 40–200 · Input step: 0.1 |
| Hip | Accepted range: 50–200 · Input step: 0.1 |
Data handling
Processing stays in the current browser tab; the site does not upload tool input for the calculation itself.
Sources
Frequently asked questions
Does changing units change the ratio?
No, if both measurements are converted consistently.
Does being below a boundary exclude disease?
No. A single circumference ratio cannot rule out disease.
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