PPI Calculator

Calculate the pixel density of your screen based on resolution and size.

Width (Pixels)

Height (Pixels)

Screen Size (Inches Diagonal)

What is PPI?

Pixels Per Inch (PPI) is a measurement used to describe the resolution of a digital display. A higher PPI means more detail and sharpness. For example, modern smartphones often have PPIs above 400, while desktop monitors are typically around 90-110.

The Formula:

PPI = √ (Width² + Height²) / Size