how to find screen size of laptop Without Measuring? Guide in 2023

From buying a new laptop bag to determining the correct size of your screen, there are many situations where the user may ask, “what is my laptop screen size?

Whether you need to call technical services about your screen or compare your device with another, it’s a good idea to know what your laptop screen size is. But, what would you say if you learn how to measure laptop screen size without measuring?

When you need to fix or replace your laptop screen or buy a case for your laptop, you asked what size the screen is. You may not have memorized the measurements, nor do you have any ruler or measuring apparatus. So there the question arises “how big is my laptop screen?“.

There are different types of measurements for computer screens. So the dimension depends on the need. Body size, pixels, per square inch, confirm what specific dimensions you need to physically measure the actual screen.

Note: you will need to avoid the plastic bezel around the screen and only measure the screen area. 

However, this does not necessarily apply if you need a measurement for use. Such as a laptop case or bag, or screen protectors that can also be applied outside your laptop screen. Also, unless otherwise stated, your laptop screen’s specific dimensions have to be measured from one end to the other.

Here in the below boxes, there are some articles about laptop screens that might interest you.

Now let’s jump into the article that says how to figure out laptop screen size without measuring it.

how to measure laptop screen size Without Measuring

On this occasion, we will discuss other resources for determining the size of your laptop screen.

1. Know the Model Number.

All laptop units come with their unique model number. You can use the model number to determine the laptop’s relevant information, including the screen size. 

For example, the Acer laptop with model number S291HL has a screen size of 20 inches. You will know the screen’s size immediately by the figure of “20,” which came after “S”. Typically, laptop model numbers start with one or two letters before the number one. The amount after the first few letters usually indicates the size of the display.

2. Using Your Laptop’s Model Specifications.

The easiest way for checking the laptop screen size is display settings for screen size and adjustments. These specifications will be on the casing you purchased, available from its user manual, or you can use the cover at the bottom of your laptop to view it. See if they exist. Specifications Specify the screen size or at least a model number.

A quick search should be performed on your computer’s settings for model information if you can’t access the laptop’s packaging or server-derived features. The screen size can usually be found in the Display Settings folder, under Laptop Features. If not, try the Advanced Display Settings tab. If you do not understand what they represent, be careful to adjust them.

In some cases, the search may reflect model features, not screen size. Use this model number to search online for your screen size. If this is normal, it may not be completely accurate information. There will be a website specifically for the many you create, and you can ask their customer service about the dimensions.

Step 1: Go to windows “Setting.” And then click on the first icon named “System.”

How To Know Screen Size of Laptop Without Measuring

Step 2: After clicking on “System,” the below window will open; you have to click on the “Advanced display settings.”

How To Know Screen Size of Laptop Without Measuring

Step 3: When you click on “Advanced display settings,” You will see all the information related to your screen.

How To Know Screen Size of Laptop Without Measuring

3. Download Software or Check Online.

Most PC software gives you details of your laptop. Sometimes provide screen size along with other display features. Another fastest option is to check the display online. Infoblip has a display-size detector that is very easy to use.

It shows a credit card that you have to adjust unless it matches the actual size. Once working, it gives you an estimate of your laptop’s display. 

4. Search for the Laptop Online.

To do this, you need to know the name of your laptop or the model number. You can find the model number on one of the hatches on the bottom panel.

Once you find this information, enter it into Google Search, the manufacturer’s website, or where you purchased the laptop. You can then click on the results that match the best. The result will then provide the specifications of the laptop’s display and other necessary hardware information.

5. View the Manual of the Laptop.

To ensure size, you measure by tape measure, open the manual for your laptop and find the screen specifications. The manual has the correct size of the laptop screen.

6. Viewing the Backside of the Laptop.

Rotate the back of the laptop and look for labels featuring laptop models and some great laptop features. It also includes the size of the display.

Also, on some laptops, the screen’s size is indicated by a number in the upper right corner. For example, the H243HX means the screen size is 24 inches.

Thanks to for this amazing video and explanation about the measurement of a laptop screen

Some General Laptop related blogs Posts

Here is a list of some general laptop-related blog posts that you can read:

Other Aspects to Consider

In addition to the size of the screen, there are some other aspects you need to consider.

Screen resolution

Screen resolution is a term used to describe the number of pixels in a display area. Most laptops come with 1920 x 1080 resolutions, while the cheaper options come with 1024 x 720 resolution. To make the term more understandable and natural, most manufacturers shortened it to FHD (Full High Definition), 1440, 4K, and so on.

The general idea with screen resolution is that the price is higher, and the display is faster. With it, you need to pick up a laptop with a high top screen resolution to immerse yourself in the dynamic, bright display with more details. 

Some laptops come with a full 4K resolution. However, these laptops come with a premium price tag. However, a 1080p screen resolution will suffice for most laptop tasks, even if the graphics are intense.

Contrasts Ratio

Another aspect you need to look for is the display aspect ratio. In contrast, there is a difference in light between bright colors compared to the darkest color. Displays with higher contrast ratios usually translate into more accurate color representations.


Brightness is probably one of the essential aspects in the eyes of the world’s consumers. Like smartphones and mobile devices, we want our laptops to be provided with bright screens that can accurately display the display despite the bright light.

Nit is a unit used to measure the degree of brightness from a screen. In general, a laptop with a high night rating means a bright screen. Nowadays, most laptops come in the range of 200 to 300 nits. If the computer is more than 300 nits, it is much better than the average rating. Macs usually excel when it comes to providing bright displays. Their latest release has screens that can reach up to 540 nits.

Black and white accuracy

Another measure of screen quality is how it can show a black surface. This aspect is somewhat similar to the contrasting ratio. However, it is more concerned with deciding how the display can show black. A number measures it. The smaller the number. The better the black surface representation, the more the screen can show a black color on the pitch.

Also, white levels are being measured. In contrast, a higher value means a more efficient representation of white. The value of 255 is the maximum level found on the RGB scale. At this level, the display can show a more accurate white color.

Refresh Rates

There are some aspects you need to consider, including the SRGB Graph, HDR, and others. However, we will only emphasize the importance of knowing the update rates of the screens. The refresh rate is a term used to describe the frequency of the display to change the image. Measured in Hz, the average update rates for laptops are 60 Hz and 144 Hz. This is very important for gaming users.

A higher refresh rate translates into better gameplay and fewer crashes. With it, you don’t have to worry about constant breaks and delays whenever the video card is performing at its best, especially for graphics-related games and tasks.

Related Articles About Projecting Laptop Screen And Connecting It To Other Gaming Consoles:

Do you know, that a laptop screen can be used as a monitor for different gaming consoles and you can also project a laptop screen externally? For more details, check out the below articles.

FAQs – How To Know Screen Size of Laptops Without Measuring

  1. How do I find out my laptop screen size?

    You can measure your screen using a tape measure from the top left corner of the screen to the bottom right corner. Alternatively, you can check your device's specifications, either on the web or on your device's settings panel, to determine your laptop's screen size.

  2. What is the normal screen size of a laptop?

    On the other hand, the display's size is somewhat more permanent, with most laptops having between 15-inch and 17-inch displays. Compact laptops range from 11 inches to 14 inches. That said, the size of the display screen can still be tricky.

  3. How do you measure a laptop screen for privacy?

    You must measure your monitor screen correctly to ensure the proper fit of your computer filter. To determine the size of the filter:

    1) Measure randomly from one corner to the opposite diagonal corner.
    2) Measure only the viewable screen area.
    3) Do not include screen frame or template dimensions.


It only takes a few minutes to measure the screen of a laptop. Now that you know how to know screen size of laptop without measuring, we strongly recommend that you write it down so that you do not have to re-measure the laptop.

If you do nothing, make sure the screen resolution is at least 1920 x 1080. Think about whether you want to touch and then consider the quality and brightness of the color. Only think about refresh rates and response times if you are a serious gamer.

However, if you still don’t believe it, please leave a comment below, and we’ll do our best to help you.

And yes, if you are interested in changing your laptop or buying a new one. Then don’t forget to check out our guides about some best laptops for different purposes and also on the bases of a specific budget. Articles are linked below in the boxes.