When measuring your laptop screen you only measure the screen, do not include the trim around your screen. You'll take a measuring tape and place it on the bottom left corner and measure the screen up to the top right corner. This will be the size of your computer screen.
Unfortunately, determining screen size can be confusing, since the screen size is not measured straight across the laptop screen either vertically or horizontally.
With your laptop open, place the end of the measuring tape in the top left corner of your laptop screen. Do not measure all the way to the corner of the laptop, .
