DPI to PPI Calculator
Calculate actual screen PPI from display resolution and physical size, and compare with print DPI.
px
px
inches
Pixels Per Inch (PPI)
91.8 PPI
Pixel Size0.277 mm
Total Pixels2,073,600 px
Screen PPI Calculation
PPI = sqrt(W² + H²) / Diagonal Inches
Where W and H are the pixel dimensions.
Common Screen PPI
Example Calculation
1920x1080 display, 24-inch diagonal.
- 01Diagonal pixels = sqrt(1920² + 1080²) = 2203
- 02PPI = 2203 / 24 = 91.8 PPI
- 03Pixel size = 25.4 / 91.8 = 0.277 mm
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