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title: "Waist-to-Hip Ratio Calculator | Numequo"
description: "Calculate waist-to-hip ratio and compare it with general WHO reference thresholds. Includes the formula and practical examples."
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locale: "en"
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[Numequo](https://www.numequo.com/) › [Health](https://www.numequo.com/health/) › [Body metrics](https://www.numequo.com/health/body-metrics/)

# Waist-to-Hip Ratio Calculator

Enter waist and hip circumferences measured in the same unit. The ratio describes body-fat distribution, not overall health.

## Input data

- **Reference profile** - type: choice; default: female; options: Female, Male
- **Waist circumference** - type: number; default: 80; min: 1; max: 500; step: 0.1; Use the same unit for both measurements
- **Hip circumference** - type: number; default: 100; min: 1; max: 500; step: 0.1

## How it works

Waist-to-hip ratio = waist circumference ÷ hip circumference. The unit cancels when both measurements use the same unit.

> This estimate is educational and is not medical advice.

## Quick examples

- **80 ÷ 100, female profile** - Reference profile: female, Waist circumference: 80, Hip circumference: 100
- **90 ÷ 100, male profile** - Reference profile: male, Waist circumference: 90, Hip circumference: 100
- **75 ÷ 95, female profile** - Reference profile: female, Waist circumference: 75, Hip circumference: 95

## Understanding your result

The result is compared with the WHO reference threshold of 0.90 for men and 0.85 for women. These are broad screening references: age, ethnicity, measurement technique and individual medical context also matter.

Last verified: 29 September 2026 (2026-09-29)

## Sources

- <a href="https://www.who.int/publications/i/item/9789241501491" rel="nofollow">WHO expert consultation</a>

## Frequently asked questions

### Which unit should I use?

Centimetres or inches both work, provided waist and hip use the same unit.

### Where should I measure my waist and hips?

Measurement protocols matter. Follow a consistent professional protocol and keep the tape level without compressing the skin.

### Is waist-to-hip ratio a diagnosis?

No. It is a screening measurement that should be considered with other health information.

### Why does the reference profile matter?

The WHO general reference thresholds differ between men and women.

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- [Ideal Weight Calculator](https://www.numequo.com/health/body-metrics/ideal-weight-calculator/) - Compare four common height-based reference formulas.
- [Calorie Needs Calculator](https://www.numequo.com/health/nutrition-energy/calorie-calculator/) - Estimate daily energy needs using the Mifflin–St Jeor equation.
- [HOMA-IR Calculator | Insulin Resistance](https://www.numequo.com/health/diabetes-blood-glucose/homa-ir-calculator/) - Calculate the original HOMA1-IR estimate from fasting glucose and insulin laboratory values.
- [Blood Glucose Converter](https://www.numequo.com/health/diabetes-blood-glucose/blood-glucose-converter/) - Convert blood glucose readings between mg/dL and mmol/L.

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