# How to check monitor size – A step by step guide

It is important to know how to check monitor size when you are buying a new one. This is because the wrong size can cause problems with your computer. Here is a step by step guide on how to check monitor size.

1. First, you need to know the dimensions of your monitor. This can be found in the manual that came with your monitor or on the manufacturer’s website. If you cannot find this information, you can measure the monitor yourself.
2. Next, you need to know the resolution of your monitor. The resolution is the number of pixels that make up the image on the screen. It is usually given as a width by a height, such as 1280×1024.
3. Now that you know the dimensions and the resolution of your monitor, you can calculate the size of the monitor. To do this, you need to know the aspect ratio of your monitor. The aspect ratio is the ratio of the width to the height of the screen. For example, a 4:3 aspect ratio means that the width is 4 times the height. A 16:9 aspect ratio means that the width is 16 times the height.
4. Once you know the aspect ratio, you can calculate the size of the monitor. To do this, you need to know the diagonal measurement of the screen. This is the distance from one corner of the screen to the opposite corner. You can measure this yourself or find it in the manual that came with your monitor.
5. Now that you know the diagonal measurement of the screen and the aspect ratio, you can calculate the width and height of the screen. To do this, you need to use the following formulas:
• Width = Diagonal x Aspect Ratio
• Height = Width / Aspect Ratio

For example, if you have a monitor with a diagonal measurement of 20 inches and an aspect ratio of 16:9, the width of the screen would be 20 x 16 = 320 inches. The height of the screen would be 320 / 16 = 20 inches.

Now that you know how to check monitor size, you can be sure that you are buying the right size monitor for your needs.