What This Calculator Estimates
This calculator estimates your waist-to-hip ratio and labels the result using a simple lower-risk or higher-risk screening range based on the sex you select. It is commonly used as a quick body-distribution check alongside other health indicators.
Formula / Method Used
- Measure your waist circumference at the narrowest point or just above the navel, depending on your tracking method.
- Measure your hips at the widest point.
- Enter both measurements in the same unit.
- The calculator uses waist / hip and then compares the ratio with a simple threshold: 0.90 for male and 0.85 for female entries on this page.
Worked Example
If your waist is 85 cm and your hips are 95 cm, your ratio is 85 / 95 = 0.89. On this page, a female entry at 0.89 would be labeled in the higher-risk range, while a male entry at 0.89 would be labeled in the lower-risk range.
What the Result Means
The ratio helps describe where body mass is carried. Higher ratios can suggest more weight carried around the waist. This is a screening signal only and should be interpreted with context such as BMI, medical history, and professional guidance.
Common Mistakes
- Mixing inches for one measurement and centimeters for the other.
- Measuring the waist or hips at inconsistent points each time.
- Pulling the tape too tight or measuring over bulky clothing.
- Treating the ratio as a diagnosis instead of a screening tool.
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Frequently Asked Questions
How is waist-hip ratio calculated?
Waist-hip ratio is calculated by dividing waist measurement by hip measurement, using the same unit for both numbers.
Do I need inches or centimeters?
Either unit works as long as both waist and hip are entered in the same unit. The ratio stays the same.
Why does the page ask for sex?
This calculator uses different simple screening thresholds for male and female entries when labeling the result as lower or higher risk range.
Is waist-hip ratio a diagnosis?
No. Waist-hip ratio is only a screening measure. It does not diagnose disease or replace a professional health assessment.
How can I get a more reliable measurement?
Measure the waist and hips with a flexible tape at consistent points, keep the tape level, and avoid pulling it too tight.
Limitations / Disclaimer
This calculator provides a simple screening estimate only. It does not account for age, ethnicity, pregnancy, athletic build, body composition testing, or medical history. It is not medical advice, diagnosis, or treatment guidance.
Last updated: May 23, 2026