PPI Calculator
Calculate pixel density (PPI) and dot pitch from a display's resolution and diagonal size. Handy for comparing monitors and phones. Everything runs in your browser.
Enter the resolution and screen size
FAQ
Is higher PPI always better?
It depends on viewing distance. 110–160 PPI is sharp for desktop monitors; phones viewed up close typically need 300+ PPI.
What is dot pitch?
The physical size of one pixel in millimeters—25.4 divided by PPI. Smaller means a denser screen.
Does it work for ultrawide monitors?
Yes—any aspect ratio works as long as resolution and diagonal are correct. Curved displays are approximated as flat.
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