Screen PPI Calculator
Calculate pixels-per-inch from screen resolution and diagonal size.
–PPI
–Megapixels
–Pixel pitch (mm)
–Aspect ratio
How to use
Enter resolution and diagonal inches — PPI, megapixels and pixel pitch appear; everything runs in your browser.
Frequently asked questions
What is PPI?
Pixels per inch — higher PPI means a sharper display at the same viewing distance.
What is a good PPI?
Phones: 300+; laptops: 150–250; desktop monitors: 100–160.
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