What are the Dimensions of an Office Chair? With 30 Real Examples

Asking about the dimensions of an office chair is a very common question to ask. Knowing about dimensions is very essential whether you are concerned with the chair being a good fit for you and your workspace.

Standard office chairs are 24 inches wide by 26 inches in depth and 40 inches in height. Depending on the type of office chair, the dimensions can differ a lot. The big and tall office chairs are bigger in size, while task chairs have lower dimensions.

Most people only look for overall width, depth, and height and decide on buying an office chair. But you must look into the seat height, seat depth, backrest height as well.

In this article, I will discuss the overall dimensions and sizes of different parts of an office chair, which will help you get the right office chair size for yourself.

So, keep reading!

Office Chair Dimension Calculation:

Before buying any office chair you must have looked at the dimensions of the chair and have decided if the chair will fit into your workspace perfectly.

The picture below will tell you how the Length, width, and height of any chair are calculated.


The length of any chair is the distance from the backside and front side of the chair. If your office chair has legs, you can calculate the distance between the legs to calculate the length of your chair.

However, if your chair has wheels, you can just measure the distance between the wheels and find the length of your office chair.


To find the width of your chair, you have to measure the distance between the legs of the left and right sides of your chair. You can also find the width by measuring the distance between the arms or take the distance between the wheels from the left to the right side.


The height measurement of any office chair is quite simple. Measure the distance from the top end of the chair to the bottom of the chair, and you will get its height.

If your chair has a headrest, measure up to the top of the headrest. But if your chair doesn’t have a headrest, you have to measure up to the top end of the backrest.

Average Office Chair Dimensions:

Average Length of Office Chairs:

Most office chairs are 22-27 inches in length. The big and tall office chairs are on the higher end of the range, while other types of chairs are on the lower end. 

Average Width of Office Chairs:

Most office chairs out there have a width of 24-28 inches. The big and tall office chairs usually have bigger width in comparison to any other standard office chairs. There are even some outliers. There are a few office chairs that are huge. We have excluded them as they are exceptions.

Average Height of Office Chairs:

On average most office chairs have a height of 35-50 inches. Low back chairs are on the lower end of the spectrum, while high back chairs are on the upper side of the spectrum. Most High-back office chairs have a height of 45-55 inches.

You will also notice most office chairs have variable chair height or a range of chair height. That’s because those chairs have adjustable height features. On the other hand, office chairs without this adjustable feature have constant height.

Let’s look at the dimensions of some popular office chairs in the market right now. This will give you a better idea of what to expect.

Popular Office Chairs with Dimensions:

#Office Chair ModelDimensions
1.DUOREST ALPHA Breathable Mesh Office Chair26.3″ x 24.4″ x 17.7″
2.ALFA Furnishing Ergonomic Office Chair15.35″ x 17.9″ x 43.9″ 
3.HON Ignition 2.027″ x 28.5″ x 44.5″ 
4.HON Wave Mesh Big and Tall Executive Chair25.63″ x 30.25″  x 42.88″
5.Oak Hollow Furniture Aloria Series25″ x 28″ x 51″
6.ALEEL4215 – Best Elusion Series Mesh Mid-Back Multifunction Chair16.7″ x 25″ x 26.6″
7.Hbada Ergonomic Office Chair19.69″ x 27.56″ x 45.67″
8.Ticova Ergonomic Office Chair27.17″ x 9.84″ x 20.87″
9.Duramont Ergonomic Office Chair‎23.6″ x 26″ x 42″
10.CLATINA Ergonomic High Swivel Executive Chair‎27.8″ x 27.8″ x 43.3″
11.Komene Ergonomic Office Chair24.8″ x 14.96″ x 23.23″
12.Herman Miller Aeron Chair Size B16.75″ x 27″ x 41″
13.Steelcase Series 123.75″ x 27″ x 41.25″
14.OFM, Plush High-Back Microfiber Office Chair31.25″ x 27″ x 47″
15.Nouhaus Ergo Flip26.17″ x 26.17″ x 47.25″
16.SIDIZ T50 Home Office Desk Chair27″ x 27″ x 42″
17.SIHOO Desk Chair24.8″ x 24.41″ x 37.6″
18.Steelcase Leap Chair21.75″ x 27″ x 38.5″
19.ELABEST Office Chair24.2″ x 18.9″ x 41.34″
20.Steelcase Gesture Chair23.63″ x 29.05″ x 44.5″
21.KBEST High Back Big & Tall Office Chair32.28″ x 27.56″ x 46.46″
22.Herman Miller Mirra 2 Chair‎18.5″ x 30″ x 43.75″
23.Ergosit Ergonomic High Back Office Chair27.8″ x 25.4″ x 46.7″
24.Bowery Fully Adjustable Office Chair‎23″ x 26.5″ x 39″
25.Serta Big & Tall Executive Office Chair30.5″ x 28″ x 45.75″
26.Cooler Master Ergo L Office Chair30.5″ x 20.1″ x 52.8″
27.XUER Ergonomics Office Chair28.35″ x 26.97″ x 51.18″
28.SIDIZ T80 Ergonomic Office Chair21.9″ x 28.9″ x 51.9″
29.Tribesigns Ergonomic Office CHair27″ x 13″ x 24.6″
30.Allguest Office Chair19.68″ x 19.68″ x 47.24″

Other Important Measurements of an Office Chair:

Seat Height:

The standard seat height for any office chair is 16.5 to 21 inches. For people below 5 feet 4 inches, the seat height of less than 17 inches will be comfortable.

On the other hand, for tall people above 6 feet, seat height above 19 inches will be comfortable.

However, you will need to set the seat height to the optimal level for your height.

You can know about the perfect seat height for your height from the articles below:

Seat Width:

ANy standard office chair will have a seat width of around 20 inches. The most common Seat dimensions are 20″W x 19″ D.

However, if you are a big guy and you need more seat width, then check out this article: Best Office Chairs For Heavy People: A Detailed Guide with Pricing

Office chairs mentioned in this article are meant for big and tall guys who need that extra seat width.

Backrest Height:

Most office chairs in the market right now have a backrest height of 18-25 inches. If you are a tall person, a high back office chair with a bigger backrest will be a great choice for you.

Armrest Height:

Most modern office chair has armrest height of 11 to 15 inches. The armrest height is very important for optimal comfort of the arms. If the armrests are higher than normal, then they will put excessive pressure on the shoulder.

On the other hand, if the armrests are very low, then it is similar to having no armrests as you will not be able to use them.

For most people, the comfortable armrest height is 12-14 inches. Modern office chair offers adjustable armrest features.

Almost all ergonomic office chair has adjustable arms which can be adjusted from 11-15 inches in general.

Related Questions:

What is the Width of a Chair?

The width of a chair is the measurement of the chair from side to side. Width is generally measured in inches or cm. On average most chairs have a width of 26 inches.

What is the best height for an office chair?

40-50 inches is considered the best height for any office chair. If you are a tall person, stick with office chairs that have a high back and bigger height in general.

How do you measure the width of a chair?

Width is the side-to-side measurement of any office chair. To measure the width of an office chair, take a scale or measuring tape. Then take measurements from the left to the right of the chair. This will give you the width of any chair.

How do you determine chair height?

To determine the chair height, measure the distance between the top end of the chair from the floor. If your chair has a headrest, measure the distance from the top of the headrest to the bottom end of the chair. If the chair doesn’t have a headrest, start from the top of the backrest.

Asif Iqbal

Hi, I’m one of the creators of officechairtrends.com. I spent hundreds of hours researching on Office Chairs. This is the site where I share everything I learned about office chairs.