☰

Pixels-Per-Inch (PPI) Calculator

Calculate display pixel density from pixel dimensions and diagonal size.

Your inputs

Your result

Enter your information and select Calculate to see the result.

How this calculator works

PPI is the pixel diagonal divided by the physical diagonal in inches.

Change one assumption at a time to see which inputs have the greatest effect on the estimate.

Worked example

A 1920 × 1080, 24-inch display has about 91.79 PPI.

Limitations

This estimate uses the dimensions and assumptions you enter. Confirm product specifications and local requirements before ordering materials.

Review this educational estimate against current quotes, official information, and your own budget before making a financial decision.