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Weight & Body tool

Waist-to-Hip Ratio Calculator

Work out your waist-to-hip ratio in cm or inches and compare it with the World Health Organization reference: 0.90 for men and 0.85 for women. Free.

Nothing you enter leaves your device.

Inputs

Measure the waist halfway between the lowest rib and the top of the hip bone, and the hips at their widest point.

Results

Enter values to see your results.

Simple steps

How it works

  1. 01

    Choose units and your sex.

  2. 02

    Enter your waist and hip measurements.

  3. 03

    Select Calculate to see your ratio and the WHO reference.

Good to know

Frequently asked questions

What is the waist-to-hip ratio?

Your waist measurement divided by your hip measurement. It shows how much weight is carried around the middle compared with the hips.

What is the WHO reference?

A World Health Organization expert report (2008) uses 0.90 for men and 0.85 for women; ratios at or above these are linked with higher health risks in research.

Where do I measure?

The waist halfway between your lowest rib and the top of your hip bone, and the hips around the widest part of your buttocks, standing relaxed.

Does this tell me I am unhealthy?

No. It is one measure among many. Ask a doctor or nurse if you are worried about your weight or health.

Can I use inches?

Yes. Choose imperial units and enter both measurements in inches. The ratio is the same in any unit.

Is anything I enter stored or sent?

No. The calculation runs in your browser. Nothing you type is saved or sent to a server.

How it is calculated

Ratio = waist ÷ hips, both in the same unit. The reference values, 0.90 for men and 0.85 for women, come from the World Health Organization report on waist circumference and waist-hip ratio (2008).

Sources

Last reviewed: October 14, 2026

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