How to calculate waist to height ratio?

Fill in waist and height in the Waist to Height Ratio Calculator above and your waist / height is calculated instantly. Change any value to see how the result responds.

Is this calculator free to use?

Yes — every calculator on this site is completely free, with no sign-up or account required.

How accurate is this calculator?

It uses the standard formula and calculates on our server for every request, so results are precise for the values you enter.

Is my data saved anywhere?

No. Nothing you enter is stored or sent anywhere unless you choose to share a link with your values included.

Waist to Height Ratio Calculator

Health & Fitness · Body

Quick answer

If waist is 85 cm and height is 170 cm, the waist / height is 0.5.

Ratio: Waist-to-height ratio = waist ÷ height.

Enter your values

Waist

Height

100 cm220 cm

Waist / height

0.5

Shown on a scale alongside the exact number, so you can see where it falls at a glance.

Increased risk

0.5

Increased risk

Integrate to your site

All Health & Fitness calculators

BMI
Calculate bmi.
BodyOpen
Body Surface Area Mosteller
Calculate body surface area mosteller.
BodyOpen
BMR Mifflin St Jeor
Calculate bmr mifflin st jeor.
CaloriesOpen
TDEE
Calculate tdee.
CaloriesOpen
Water Intake by Weight
Calculate water intake by weight.
WellnessOpen
Running Pace
Calculate running pace.
FitnessOpen

About the Waist to Height Ratio Calculator

The waist-to-height ratio divides your waist measurement by your height. It is a simple indicator of fat stored around the middle, which is linked to higher health risk. A common guideline is to keep your waist below half your height, a ratio under 0.5.

Measure your waist at the level of your navel, standing relaxed, and use the same unit for waist and height.

Ratio

Waist-to-height ratio = waist ÷ height

Things to keep in mind

The ratio can be more useful than BMI for spotting central fat.
It is a screening tool and not a diagnosis.
Discuss a high ratio with your doctor, along with blood pressure, sugar and cholesterol checks.

See how the result changes

Each table re-runs this calculator with one value changed and everything else left as it is.

Waist / height by waist

If waist goes from 85 cm to 128 cm, waist / height changes from 0.5 to 0.75 (+51%).

Waist / height for different values of Waist
Waist	Waist / height
42.5 cm	0.25
63.8 cm	0.38
85 cmstart	0.5
128 cm	0.75
170 cm	1

Waist / height by height

If height goes from 170 cm to 255 cm, waist / height changes from 0.5 to 0.33 (−33%).

Waist / height for different values of Height
Height	Waist / height
85 cm	1
128 cm	0.66
170 cmstart	0.5
255 cm	0.33
340 cm	0.25

HEALTH & FITNESS GUIDE

A quick guide to Waist to Height Ratio

Use it to get an accurate waist / height in seconds — free, with no sign-up.

Instant results
See your waist / height the moment you enter your numbers.
Free, no sign-up
Every calculator here is free to use, with no account required.
Accurate & transparent
The same standard formula runs on our server for every calculation.

How to Use the Waist to Height Ratio Calculator

Enter Waist

Provide your waist, in cm.

Enter Height

Provide your height, in cm.

View Your Results

Get your waist / height instantly, calculated on our server.

What is Waist to Height Ratio?

This health & fitness tool works out your waist / height instantly, so you don't have to do the math by hand.

“One quick calculation, so you always know your waist / height before you decide.”

What Affects Your Waist / height

Your waist / height depends on the values below.

Waist
Changing your waist changes your waist / height.
Height
Changing your height changes your waist / height.

Example Result

Here's what you can expect from a waist to height ratio calculation:

Waist: 85 cm
Height: 170 cm
Waist / height: 0.5

Frequently Asked Questions

How does waist affect waist / height?: If waist goes from 85 cm to 128 cm, waist / height changes from 0.5 to 0.75 (+51%).
How does height affect waist / height?: If height goes from 170 cm to 255 cm, waist / height changes from 0.5 to 0.33 (−33%).
How to calculate waist to height ratio?: Fill in waist and height in the Waist to Height Ratio Calculator above and your waist / height is calculated instantly. Change any value to see how the result responds.
What does an example waist to height ratio calculation look like?: If waist is 85 cm and height is 170 cm, the waist / height is 0.5.
Is this calculator free to use?: Yes — every calculator on this site is completely free, with no sign-up or account required.
How accurate is this calculator?: It uses the standard formula and calculates on our server for every request, so results are precise for the values you enter.
Is my data saved anywhere?: No. Nothing you enter is stored or sent anywhere unless you choose to share a link with your values included.

Integrate

Customize this calculator

Pick a look, copy the code, and this Waist to Height Ratio calculator — with its inputs and results — runs on your own website.

Theme color

Match your brand's colors

Corner style

Sharp, soft or fully rounded

Widget width

Compact, standard or full width

Live preview

Full width

The same inputs, result and chart as the calculator above, styled with your choices.

yoursite.com