How to Measure the Size of Your Computer Screen to Tell How Many Inches It Is

By Robert Kingsley

There are certain occasions when you may wish to know the exact size of your computer's monitor. Whether you are looking to find a new monitor of a similar or larger size or you are purchasing a screen protector or filter, it is imperative that you understand how to measure your computer screen properly. It's an easy and quick process.

Things You'll Need

  • Measuring tape

Step 1

Pull out the measuring tape and hold the lead edge to the top left corner of your monitor's screen. Be sure you are only measuring the viewable area. The frame is not included in this measurement.

Step 2

Slide the measuring tape straight across the center of the screen to the bottom right corner.

Step 3

Check the measurement on the tape to see how many inches your monitor is across the diagonal.

Tips & Warnings

  • Be careful not to scratch or damage your screen while measuring.