How to Measure Computer Screens: A Simple Tutorial

Monitor size is measured by the distance from one corner of the screen's viewable area to the diagonally opposite corner . With CRTs, the number is generally about an inch greater than the actual area. Starting in the late 1990s, the real number is included in the specs.

Measuring the size of your computer monitor screen might seem like a daunting task, but it’s actually quite simple. In this tutorial, we’ll go over the steps for measuring the size of your computer monitor screen.

Firstly, it’s important to note that to measure the size of your computer monitor, you don’t need to measure the dimensions of the length and width. Instead, you need to go from one corner to the other corner. This means that you can go from the top left to the bottom right or from the top right to the bottom left.

Once you know this, it’s time to start measuring. Grab your measuring tape and place it right in the corner of the monitor screen. Then, go to the other corner and measure from the actual screen to the edge of the screen on the other side. It’s important to note that you should not include the frame of the monitor in your measurement as different monitors might have a thicker or thinner frame.

Different monitors, whether older or newer, might have different aspect ratios, meaning they might be a little wider or a little taller. However, going from one corner to the other corner is pretty much the universal way to measure the size of your computer monitor.

In the example provided in the tutorial, the monitor measures 24 inches across. As you can see, it’s a simple process that can be done quickly and easily.

So, that’s it! That’s how you measure the size of your computer monitor screen. It’s a simple task that anyone can do. If you have any other tips or tricks for measuring computer screens, feel free to leave them in the comments below.


How do I know my PC screen size?
The size of a laptop computer monitor is determined by physically measuring the screen. Using a measuring tape, start at the top-left corner and pull it diagonally to the bottom-right corner. Be sure to only measure the screen, do not include the bezel (the plastic edge) around the screen.
How do you measure a 27 inch monitor?
The best practice for determining a monitor's size is to measure the length from the top left corner to the bottom right corner of the screen using measuring tape. Please ensure that the bezel is not included in these measurements as monitors are measured by their display panel, not the overall size of the monitor.
How big is a 24 inch computer screen?
With a 61cm screen size, 24 inches is the default size for everyday use, office tasks, and school. Full HD (1080p) stays fairly sharp on monitors of this size. As they're not too big, you can easily place them in a setup with 2 screens.