How does the Monitor PPI Calculator work?
The Formula
sqrt(w^2 + h^2) / SizeExample: 1080p at 24 inches = 91.79 PPI.
Frequently Asked Questions
What is a retina display?
Usually 300+ PPI.
Calculate the Pixels Per Inch (PPI) of your monitor or TV based on its resolution and physical diagonal size to determine image sharpness.
sqrt(w^2 + h^2) / SizeUsually 300+ PPI.