How To Measure A Laptop In Inches. This means that if the upper horizontal length (roof) is shorter or greater than the lower horizontal length (base). Choose a side of your laptop and place your tape measure at the bottom.
Place the measuring tape along the top and bottom of your laptop lid (running parallel to the shortest sides). The size of a laptop screen is generally measured in inches. Extend your tape measure to the top of the screen when it is closed.
Place the measuring tape on the bottom left corner and stretch it to the top right corner of the laptop.
In both cases, you have to measure accuracy and consider if your laptop is slightly trapezium. Different standard laptop sizes & dimensions. Specify the size of the diagonal of your screen in inches (). Or convert to whichever unit you feel okay with.