Calculate pixels per inch

Calculate pixels per inch (PPI) from resolution and diagonal size.

Your file stays on your device.This tool processes supported files locally in your browser.

How this tool works

Enter a width and height in pixels and a diagonal size in inches and ToolRefinery computes pixels per inch locally.

Inputs

Enter values directly into the calculator fields above; no file is required.

Privacy

This calculation runs entirely on your device. Your inputs are not sent to a ToolRefinery processing server.