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How to Measure a TV to Get The True Size

How to measure a tv
Published 6 May 2022

Last updated on 5 July 2022

Although it’s not difficult to measure space for your TV, a few things must be considered. The most common thing to do is measure the screen size of the TV, but it’s also essential to check the TV’s width, height, and depth.

These measurements are essential when you want to install them in a room. You’ll need a tape measure for proper measurement, or you can use a calculator to figure out the width and height if you already have the diagonal size.

It should take about five minutes. Follow the steps in this guide.

Checking and measuring the TV screen size

The diagonal length of the screen describes a TV screen’s size. To measure the size of your TV screen, measure from the corners at the top left to the bottom right or the other way around. While calculating, don’t include the frame or bezel around the edge of the screen.

Small LED TVs usually have sizes between 28 and 30 inches. Then, larger LEDs and OLED screens have measurements between 70 and 80 inches.

How to measure a tv diagonally

How to measure the height

Take your tape measure and place it from the top of the frame to the bottom edge. If you plan to hang your TV or put it on a stand, you should also consider that height. Before buying a TV, the manufacturer’s website will show the dimensions.

Checking the width

Next, you should measure the width. Do so from the left edge of the screen to the right-hand edge. Ensure that you include the frame and the bezel around the screen. It’s also important to consider the wires for external devices and their space.

Measuring the depth

Another critical measurement to check is depth. This is the distance from the front to the back of the screen. Modern TVs usually have thinner screens, especially OLED TVs, but the back will be thicker because of the electronics. By checking the depth, you will know the distance from the TV to the wall or cabinet.

Determining the perfect viewing distance for the TV

The final measurement you need to consider to get the most of your television is the viewing distance. It would be best if you sat a certain distance away from it, and the viewing distance depends on the screen size.

It’s advisable to multiply the screen size by 1.5 to get the minimum distance. Since the result would be inches, you can convert it to feet.


Once you make all the necessary measurements, you can then calculate the dimensions of your TV and purchase the right one. When buying a TV, you will notice that the manufacturer includes details on the sizes. Compare these with your measurements and buy the right one.

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Henry is a tech lover which a huge passion for gaming, software & writing tutorials.

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