To measure your laptop screen size, follow these steps:
- Use a tape measure or ruler.
- Measure diagonally from one corner of the actual screen (the viewable glass area) to the opposite corner. For example, from the bottom left corner to the top right corner.
- Make sure to measure only the screen itself, excluding the surrounding bezel or frame.
- The measurement you get in inches is the laptop screen size.
This diagonal measurement method is the standard way to determine laptop screen size
. If you want to calculate the diagonal size mathematically, you can measure the width and height of the screen, then use the Pythagorean theorem:
Diagonal=(Width2+Height2)\text{Diagonal}=\sqrt{(\text{Width}^2+\text{Height}^2)}Diagonal=(Width2+Height2)
This will give you the diagonal screen size in the same units you measured
. Alternatively, you can check your laptop model number in the system information (press Windows key + R, type "msinfo32", and press Enter), then look up the model specifications online to find the exact screen size without physically measuring
. In summary, the easiest and most reliable way is to measure the diagonal length of the visible screen area with a ruler or tape measure. This measurement is usually expressed in inches and commonly ranges from about 11 inches to 17 inches for laptops
