Tool World

Screen Resolution Calculator

Calculate PPI and screen dimensions

Calculate your screen's pixels per inch (PPI), aspect ratio, and total pixels. Essential for designers and display comparisons.

Frequently Asked Questions

What is a good PPI?

For desktop monitors at arm's length, 100-150 PPI is comfortable. Phones typically have 300-500+ PPI.

Why does PPI matter?

Higher PPI means sharper images and text. It's especially important for photo/video editing.