`PPI = sqrt("width"^(2) + "height"^(2)) / ("diagonal in inches")`
Enter a value for all fields
The Pixels Per Inch equation calculates the PPI (Pixels Per Inch) of a screen given the screen dimensions in pixels and the length of the screen diagonal in inches.
INSTRUCTIONS: Enter the following
(width) The number of pixels that make up the horizontal dimension of your display
(height) The number of pixels that make up the vertical dimension of your display
(diagonal in inches) The length of the display's diagonal
Pixels Per Inch (PPI): The result is returned as the number of pixels per inch for your display