Television Size Measurement

1. How to Measure TV Size (The Golden Rule)

The biggest mistake made when measuring TV size is to hold the tape measure from right to left (horizontally). However, according to international standards, TV sizes are measured diagonally, that is, from one corner to the opposite diagonal corner.

How to do it?

  1. Place the end of the tape measure at the bottom left corner of the screen.

  2. Extend the other end to the top right corner (diagonally).

  3. Measure only the inner glass part, not the frame.

  4. The resulting centimeter (cm) value is your screen size.

2. Centimeter to Inch (") Conversion Chart

You can quickly check how many inches your measured centimeter value corresponds to, and its market equivalent "screen" size, in the table below.

Diagonal Measurement (cm) Inch (") Equivalent Market Name (Screen)
80 - 82 cm 32" 82 Screen
101 - 103 cm 40" 102 Screen
106 - 108 cm 42" / 43" 106 - 109 Screen
123 - 127 cm 49" / 50" 123 - 127 Screen
138 - 140 cm 55" 139 - 140 Screen
146 - 148 cm 58" 147 Screen
164 - 165 cm 65" 165 Screen
189 - 191 cm 75" 190 Screen

3. Practical Mathematical Formula

If you don't have the table with you, you can use this simple formula:

Screen (cm) ÷ 2.54 = Inches (")

For example: You measured diagonally and found 140 cm. 140 / 2.54 = 55.1". So your TV is 55 inches.

4. Finding from Model Number (Most Reliable Method)

If you don't want to bother with a tape measure, look at the label on the back of your TV. The first two digits in the model number usually indicate the screen size.

  • Example 1: Samsung 55AU7000 = 55 inches.

  • Example 2: LG 43UP7500 = 43 inches.

  • Example 3: Philips 50PUS8505 = 50 inches.

5. Why is the Correct Measurement Important When Buying a Screen Protector?

TV screen protectors are manufactured to millimeter precision according to the delicate structure of the panel. An incorrectly sized protector:

  • Causes the corners of the screen to be exposed.

  • Does not fit properly on the TV frame.

  • Distorts the aesthetic appearance.

💡 Expert Advice: If you are unsure about the measurement, you can provide us with your TV's model number, and we can help you choose a 100% compatible panel.