Waist-to-Height Ratio Calculator

Compare waist size with height using the same measurement units. Enter your own values below to see waist-to-height ratio and check the method behind it.

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Your inputs

Change the example values to match your situation.

Your result

Let’s work it out.

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

How this calculator works

Waist-to-height ratio = waist circumference ÷ height. 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-Height Ratio Calculator?

Waist-to-Height Ratio Calculator helps you compare waist size with height using the same measurement units.

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

How to use Waist-to-Height 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 height (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-height 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 height in cm, at least 1 and at most 300. Decimals are accepted.

Waist-to-Height Ratio Calculator: a worked example

With the inputs below, the result is 0.470588 (waist-to-height 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
Height (cm)170 cm
Waist-to-height ratio0.470588

Understanding the Waist-to-Height Ratio result

The main output is waist-to-height 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-Height 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-Height Ratio Calculator FAQs

What does Waist-to-Height Ratio Calculator calculate?

Waist-to-Height Ratio Calculator helps you compare waist size with height using the same measurement units. Its main output is waist-to-height ratio.

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

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

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

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

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

Example inputs: Waist circumference: 80 cm; Height: 170 cm. The result is 0.470588 (waist-to-height 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 height?

Enter height in cm, at least 1 and at most 300. Decimals are accepted. The example uses 170 cm; replace it if your circumstances differ.

How should I read waist-to-height ratio?

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

Why might my Waist-to-Height 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-Height Ratio Calculator?

Yes. Note your first waist-to-height 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-Height 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.