DPI to PPI Converter
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
Taille du pixel0.277 mm
Total Pixels2,073,600 px
Formule
## Screen PPI Calculation **PPI = sqrt(W² + H²) / Diagonal Inches** Where W and H are the pixel dimensions. ### Common Screen PPI | Device | Approx PPI | |---|---| | 24" 1080p monitor | 92 | | 27" 4K monitor | 163 | | iPhone 15 | 460 | | iPad Pro | 264 |
Exemple Résolu
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