If you want to buy a new laptop replace your old screen or get a screen protector you might need to know the size of your laptop screen. However measuring it with a ruler or a tape can be tricky and inaccurate. Fortunately there are other ways of How To Find Out Your Laptop Screen Size Without Measuring physically. In this article we will show you four simple methods to do that.
Key Takeaways
- You can find out your laptop screen size by checking the model specifications the user manual the system information or the display settings.
- The screen size is usually measured diagonally in inches excluding the bezel or the frame around the screen.
- The screen resolution is the number of pixels that make up the screen and it can affect the quality and clarity of the display.
- The screen aspect ratio is the ratio of the width to the height of the screen and it can affect the shape and layout of the display.
| Method | Pros | Cons |
| Check the model specifications | Easy and accurate | May not have access to the sources |
| Check the display settings | Quick and convenient | May not be very accurate |
| Use a measuring app | Fun and interactive | May not be very precise |
| Measure physically | Reliable and simple | May be tricky and inaccurate |
Method 1: Check the Model Specifications
The easiest way to find out your laptop screen size is to check the model specifications of your laptop. You can find them on the packaging box the user manual or a sticker on the bottom of your laptop. The model specifications should include the screen size in inches along with other information such as the processor memory storage and battery.
If you don’t have access to these sources you can also search for your laptop model online and look for the official website or a reliable review site that provides the screen size. To find your laptop model you can use one of these methods:
- Open Run by pressing Win + R. Type msinfo32 and press Enter to open System Information. Check the Value of the System Model1.
- Open Start and type dxdiag in the search box. Press Enter to open DirectX Diagnostic Tool. Check the System Model under System Information2.
- Open Start and type cmd in the search box. Press Enter to open Command Prompt. Type wmic csproduct get name and press Enter. Check the Name value3.
Method 2: Check the Display Settings
Another way to find out your laptop screen size is to check the display settings on your laptop. You can access them by following these steps:
- Open Start and select Settings > System > Display.
- Look at the Rearrange your displays section and select the display you want to check.
- Scroll down to Scale and layout and find Display resolution. This is the number of pixels that make up your screen horizontally and vertically4.
- Use an online calculator5 or a formula6 to convert the display resolution into screen size.
The formula is:
Screen size (inches) = √ (Horizontal pixels^2 + Vertical pixels^2) / DPI
where DPI is dots per inch which is usually 96 for Windows laptops.
For example if your display resolution is 1920 x 1080 pixels then your screen size is:
Screen size (inches) = √ (1920^2 + 1080^2) / 96 = √ (3686400 + 1166400) / 96 = √ (4852800) / 96 = 2200 / 96 = 22.9 inches
Note that this method may not be very accurate as it depends on the DPI value of your laptop which may vary depending on the manufacturer and model.
Method 3: Use a Measuring App
If you have a smartphone or a tablet you can also use a measuring app to find out your laptop screen size without measuring it physically. There are many apps available for both iOS and Android devices that use augmented reality (AR) technology to measure objects using your camera. Some examples are:
- Measure (iOS)
- AR Ruler (Android)
- AirMeasure (iOS and Android)
To use these apps you need to follow these steps:
- Download and install the app on your device.
- Launch the app and grant permission to access your camera.
- Point your camera at your laptop screen and align it with the edges of the screen.
- Tap on the screen to mark the corners of the screen.
- Read the measurement result on your device.
Note that this method may not be very precise as it depends on the quality of your camera and the accuracy of the app.
Method 4: Measure Physically
If none of the above methods work for you you can always resort to measuring your laptop screen physically with a ruler or a tape. However you need to be careful and follow these tips:
- Measure only the visible area of the screen not including the bezel or the frame around it.
- Measure diagonally from one corner to another either from top-left to bottom-right or from top-right to bottom-left.
- Measure in inches as most laptop screens are measured in this unit.
- Round up to the nearest standard size such as 11.6 12 13.3 14 15.6 or 17 inches.
| Screen Size (inches) | Screen Resolution (pixels) | Screen Aspect Ratio |
| 11.6 | 1366 x 768 | 16:9 |
| 12 | 2160 x 1440 | 3:2 |
| 13.3 | 1920 x 1080 | 16:9 |
| 14 | 2560 x 1440 | 16:9 |
| 15.6 | 3840 x 2160 | 16:9 |
| 17 | 1920 x 1200 | 16:10 |
What are the typical monitor sizes and which one is best for your needs?
According to HP most modern monitor screen sizes range from less than 21 inches to well over 30 and are practically priced for your needs. To accurately compare any two monitors on the market you’ll need to know your personal requirements for each of the following by asking some important questions: resolution refresh rate response time panel type and connectivity options
How can you accurately compare any two monitors on the market?
To accurately compare any two monitors on the market you’ll need to know your personal requirements for each of the following by asking some important questions: resolution refresh rate response time panel type and connectivity options
How can you determine the screen height and width of a device using Flutter?
According to a Stack Overflow post you can determine the screen height and width of a device using Flutter by using the following code:
double width = MediaQuery.of(context).size.width;
double height = MediaQuery.of(context).size.height;
This will give you the height and width of the device’s screen in logical pixels