Pixel Density Calculator
Calculate PPI and DPI for any screen — enter resolution and physical diagonal size.
Device presets
PPI / DPI
93
pixels per inch
Total pixels
2.07 MP
2,073,600 px
Diagonal
2203
diagonal pixels
Category
Low density
How pixel density (PPI) is calculated
PPI (pixels per inch) is calculated from the screen resolution and physical size: PPI = √(width² + height²) / diagonal. A higher PPI means more pixels packed into each inch, resulting in sharper text and images. Apple's "Retina" displays are typically 220+ PPI for Macs and 400+ PPI for iPhones.
PPI measures the physical pixel density; "logical DPI" used in CSS is usually 96 dpi on most operating systems. For CSS pixel sizing, try px to rem converter.
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