Imagine if you invested months searching for a high quality TV because that your residence entertainment room. You ultimately purchase the television you desire at a price you have the right to afford. When it is installed, you space disappointed. It seems to be the end of place in the room. This may happen because you did not know how screen size correlates to actual TV size.

You are watching: How is a tv screen measured


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All display screen sizes are declared in inches. The numbers stand for the diagonal measurement from the peak left to the bottom ideal corner. You must measure the screen diagonally to acquire the exactly size. TV displays were originally measured diagonally because:

They had round photo tubes i beg your pardon projected display screen images.The screen can not be bigger than the circular tube.Measuring the tube provided the measure up of the screen.

Expressing the dimension of a television display this means remains a standardized practice. However, not every one of the advertised display size is “viewable” because a small part of the display is covered by a frame or bezel. However, save advertisements encompass the bezel in the diagonal line television screen size measurements.

The part of the display screen where girlfriend actually view the picture is contempt smaller. Television display screen frames space usually between ½ come 3 inch wide, yet frame widths vary through each television manufacturer. This create variances between total display screen size and also viewable display size. Listed below are examples of some advertised diagonal displays versus their actual display sizes.

Advertised 40 inches, actual size 39.9 inchesAdvertised 55 inches, actual size 54.6 inchesAdvertised 65 inches, actual dimension 64.5 inchesAdvertised 75 inches, actual size 74.5 inches

You may have actually seen the word “class” in a TV ad. For example, an advertisement might perform a 70-inch “class TV.” This ax is used since the framework needs to cover a small panel component to for sure it. Shop use words “class” come combat claims of false advertising.


If you setup to to buy a TV, here’s how to measure up the screen:

Install a measuring application on your mobile device. Lock are obtainable on Android and iOS.The tv you want to buy could be on screen in the store. Usage a measuring tape and place that diagonally throughout the screen within the bezel.Carefully read the manufacturer’s product specifications, usually uncovered on the outside of the box.Search for the brand, make, and model the the TV online. The specs will certainly be top top the manufacturer or retailer website.

When shopping for a television, it’s a good idea to save a tape measure v you so that you deserve to measure the full height, depth, and width the the TVs too. These dimensions can aid you recognize if the tv will right in the space you intended to location it.

Buying a brand-new TV isn’t the just reason why you may need to measure up it.

Maybe you should know just how to measure up the screen on a TV you already own to sell it, or you intended to relocate it to another location in your home. You deserve to calculate her TV screen several ways, like:


Install the recent measuring app on your mobile device.Check her owner’s hands-on for screen measurements.Search online for the brand, make, and model to gain the specifications.Measure by securing a tape measure up diagonally across the screen.

You can also use everyday items discovered in your home if girlfriend don’t have a ice measure. Try these items in a pinch:

Tape sheets of traditional 11” printer record diagonally throughout the screen to calculate the measurement.A dollar bill is specifically 6 inch long. Use record currency to measure the display screen diagonally.Use a leader to measure up the screen. Be certain to safeguard the display from scratches.Place a wire or rope across the display screen diagonally and mark turn off the distance between the bezel. Use one more pre-measured household item to measure up the string.
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Don’t take a opportunity on having to uninstall and move a wall-mounted TV. Learn just how to take dimensions of your display in details areas to mountain it properly the very first time. Wall-mounted TVs have to be placed at the exactly eye level for optimal the town hall comfort.

For example, many movie action happens in ~ the center 3rd of the screen. Come ensure you don’t miss out on the action, measure your television, so your eyes are level v this area as soon as you’re in a sit position. Check out this tips before you mount your TV:

Measure the height of your display so you understand where the center of the screen is located.Measure the width of your display to certain you acquisition the correct wall mount.Measure the viewable screen size to pick the finest location in the room to mountain it.

Measuring a projector TV display is a distinct process. The screen’s facet ratio deserve to depend ~ above the objective of the display. Common projection display screen ratios include:


4:3 for basic settings prefer watching movies4:3 for classrooms or boardrooms16:9 to view in HD16:10 to see in widescreen

You may already own a projection TV for house entertainment. Here’s exactly how to measure a projector TV screen if you plan to change it:

Measure the screen length indigenous the peak left come the bottom right corner (like a regular TV screen).Turn your facet ratio right into a portion (for example, 6:19 would certainly be 16/9).Measure the broad of the screen.Multiply it by the fraction to acquire the height.Add height2 to add width2. This amounts to the diagonal2.

The square source of this number is the diagonal measurement of your projector TV screen, based on the Pythagorean to organize (a2+b2=c2).


Home entertainment in size “You”

Your residence entertainment an are is a be safe environment, and the TV is the central feature. Over there is no tough rule about the display screen size; that is your an individual choice. However, some general guidelines can aid you certain the perfect fit.

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Do you watch television? permit us understand how often you watch TV. Include the dimension of your biggest television. Use the comment box listed below for your response.