Find the pixel density of a screen from its resolution and diagonal size.
The screen diagonal in pixels is divided by its diagonal length in inches to give pixels per inch, and 25.4 divided by PPI gives pixel pitch. PPI determines how dense and smooth a display looks, which matters when choosing monitors, phones and print-viewing sharpness.
PPI
PPI = diagonal pixels / diagonal inches; pitch = 25.4 / PPI
PPI = diagonal pixels / diagonal inches; pitch = 25.4 / PPI The screen diagonal in pixels is divided by its diagonal length in inches to give pixels per inch, and 25.4 divided by PPI gives pixel pitch.
PPI determines how dense and smooth a display looks, which matters when choosing monitors, phones and print-viewing sharpness.
This calculator takes 3 inputs: Width, Height, Diagonal. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.