Waist-to-Hip Ratio Calculator

Calculate waist-to-hip ratio from your two circumference measurements. Enter your own values below to see waist-to-hip ratio and check the method behind it.

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Your inputs

Change the example values to match your situation.

Your result

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Fill in your inputs and select Calculate.
Your result and breakdown will appear here.

How this calculator works

Waist-to-hip ratio = waist circumference ÷ hip circumference. Use the same units.

Before you use the result

  • Estimates for general information. They do not diagnose a condition or replace a qualified clinician’s assessment.

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What is Waist-to-Hip Ratio Calculator?

Waist-to-Hip Ratio Calculator helps you calculate waist-to-hip ratio from your two circumference measurements.

The main result is waist-to-hip ratio. The formula, example and assumptions below explain how to interpret it.

How to use Waist-to-Hip Ratio Calculator

Use the example to get familiar with the form, then enter your own figures. Any rates in the example are illustrative. Check the field labels and units before calculating.

  1. Gather waist circumference (cm) and hip circumference (cm). Use values from the same situation or reporting period.
  2. Replace the example waist circumference with your own value, then complete the other fields. Check the displayed units.
  3. Select Calculate and read waist-to-hip ratio. Change one input and calculate again to compare a second scenario. Reset restores the original example.
  • Enter waist circumference in cm, at least 1 and at most 300. Decimals are accepted.
  • Enter hip circumference in cm, at least 1 and at most 300. Decimals are accepted.

Waist-to-Hip Ratio Calculator: a worked example

With the inputs below, the result is 0.842105 (waist-to-hip ratio). Follow the example, then replace these illustrative values with your own.

Example inputs and output
Input or outputExample value
Waist circumference (cm)80 cm
Hip circumference (cm)95 cm
Waist-to-hip ratio0.842105

Understanding the Waist-to-Hip Ratio result

The main output is waist-to-hip ratio. It applies to the inputs and operation you selected.

Displayed results use a readable number of decimal places. When checking a result by hand, keep extra precision until the last step. To compare scenarios, change one input at a time and keep the others fixed.

Waist-to-Hip Ratio Calculator: assumptions and common mistakes

A useful estimate starts with the right inputs. Check the following assumptions and limits before applying the result to your situation.

  • Estimates for general information. They do not diagnose a condition or replace a qualified clinician’s assessment.
  • Health estimates are context-dependent. Age, pregnancy, illness, medication and individual measurements can affect interpretation; these tools do not diagnose a condition.

For wider guidance, visit World Health Organization. The formula and scope of this specific tool are stated on this page.

Waist-to-Hip Ratio Calculator FAQs

What does Waist-to-Hip Ratio Calculator calculate?

Waist-to-Hip Ratio Calculator helps you calculate waist-to-hip ratio from your two circumference measurements. Its main output is waist-to-hip ratio.

What inputs do I need for Waist-to-Hip Ratio Calculator?

You need waist circumference (cm) and hip circumference (cm). Use the field labels and units to match your figures to the formula.

Which formula does Waist-to-Hip Ratio Calculator use?

Waist-to-hip ratio = waist circumference ÷ hip circumference. Use the same units.

What is a worked example for Waist-to-Hip Ratio Calculator?

Example inputs: Waist circumference: 80 cm; Hip circumference: 95 cm. The result is 0.842105 (waist-to-hip ratio).

How should I enter waist circumference?

Enter waist circumference in cm, at least 1 and at most 300. Decimals are accepted.

How do I choose hip circumference?

Enter hip circumference in cm, at least 1 and at most 300. Decimals are accepted. The example uses 95 cm; replace it if your circumstances differ.

How should I read waist-to-hip ratio?

The main output is waist-to-hip ratio. It applies to the inputs and operation you selected.

Why might my Waist-to-Hip Ratio Calculator result differ from my records?

Estimates for general information. They do not diagnose a condition or replace a qualified clinician’s assessment. Differences in entered values, units or rounding can also change the comparison.

Can I compare two scenarios in Waist-to-Hip Ratio Calculator?

Yes. Note your first waist-to-hip ratio, change waist circumference or another input, and select Calculate again. Editing a field clears the old result so it is not mistaken for a new calculation.

Is Waist-to-Hip Ratio Calculator free, and where are my inputs calculated?

This calculator is free to use without signing in. Its formula runs in your browser; calculator inputs are not sent to a calculation API. The inputs reset to the example values when you reset the form or start a fresh page.