Pixel Density
Pixel density is the number of pixels on a display divided by the diagonal size of a display.
4K Display Pixel Density
The table below shows the pixel density in Pixels Per Inch (PPI) at various display sizes for 4K UHD (3840x2160) and Full HD (1920x1080).
| 4K UHD | Full HD | |
| 110" | 40.05 | 20.03 |
| 84" | 52.54 | 26.23 |
| 75" | 58.74 | 29.37 |
| 65" | 67.78 | 33.89 |
| 64.5" | 68.31 | 34.15 |
| 60" | 73.43 | 36.72 |
| 58" | 78.96 | 37.98 |
| 56.2" | 78.4 | 39.2 |
| 55" | 80.11 | 40.05 |
| 50" | 88.12 | 44.06 |
| 46" | 95.78 | 47.89 |
| 40" | 110.15 | 55.07 |
| 39" | 112.97 | 56.48 |
| 32" | 137.68 | 68.84 |
| 31.5" | 139.87 | 69.93 |
| 30" | 146.86 | 73.43 |
| 27.8" | 158.48 | 79.24 |
| 27" | 163.18 | 81.59 |
| 24" | 185.58 | 91.79 |
| 23" | 191.56 | 95.78 |
| 21.5" | 204.92 | 102.46 |
| 17.3" | 254.67 | 174.5 |
| 15.4" | 286.09 | 196.03 |
| 13.3" | 331.26 | 226.97 |
| 11.6" | 379.81 | 260.25 |
| 10.6" | 415.64 | 207.82 |
| 9.6" | 458.94 | 229.47 |
| 5" | 881.16 | 440.58 |
| 4.8" | 917.88 | 458.94 |
| 4.7" | 937.41 | 468.7 |
Comparison Displays
| Resolution @ Size | PPI | |
| Dell U2413 | 1920x1200 @ 24" | 94.34 |
| Dell U3014 | 2560x1600 @ 30" | 100.63 |
| Macbook Pro Retina | 2880x1800 @ 15.4" | 220.53 |
8K Display Pixel Density
The table below shows the pixel density in Pixels Per Inch (PPI) at various display sizes for 8K UHD (7680 x 4320), 4K UHD (3840x2160) and Full HD (1920x1080).
| 8K UHD | 4K UHD | Full HD | |
| 145" | 60.77 | 30.38 | 15.19 |
| 110" | 80.11 | 40.05 | 20.03 |
| 85" | 103.67 | 51.83 | 25.92 |
| 84" | 104.9 | 52.54 | 26.23 |
| 65" | 135.56 | 67.78 | 33.89 |
| 60" | 146.86 | 73.43 | 36.72 |
| 55" | 160.21 | 80.11 | 40.05 |
| 50" | 176.23 | 88.12 | 44.06 |
| 46" | 191.56 | 95.78 | 47.89 |
| 40" | 220.29 | 110.15 | 55.07 |
| 32" | 275.36 | 137.68 | 68.84 |
| 30" | 293.72 | 146.86 | 73.43 |
| 27" | 326.36 | 163.18 | 81.59 |
| 24" | 367.15 | 185.58 | 91.79 |
| 23" | 383.11 | 191.56 | 95.78 |
| 21.5" | 409.84 | 204.92 | 102.46 |
| 17.3" | 509.34 | 254.67 | 174.5 |
| 15.4" | 572.18 | 286.09 | 196.03 |
| 13.3" | 662.53 | 331.26 | 226.97 |
| 11.6" | 759.62 | 379.81 | 260.25 |
| 9.6" | 917.88 | 458.94 | 229.47 |
| 5" | 1762.33 | 881.16 | 440.58 |
| 4.8" | 1835.76 | 917.88 | 458.94 |
High Pixel Density Displays
The table below is a list of displays with a pixel density greater than 200 PPI and a resolution of 1080p or greater.
| Size | PPI | Resolution | Device |
| 22.2" | 203.98 | 3840 x 2400 | IBM T221 |
| 20.4" | 215.97 | 3840 x 2160 | Panasonic Prototype |
| 20" | 230.76 | 3840 x 2560 | Panasonic 4K Toughbook |
| 15.6" | 235.35 | 3200 x 1800 | Sharp Prototype |
| 15.4" | 220.53 | 2800 x 1800 | Retina MacBook Pro |
| 14" | 276.05 | 3200 x 1800 | Fujitsu Lifebook UH90/L |
| 13.3" | 262.25 | 3200 x 1800 | Samsung Ativ Q |
| 12.85" | 239.15 | 2560 x 1700 | Chromebook Pixel |
| 11.6" | 253.21 | 2560 x 1440 | Dell XPS 11 |
| 10.1" | 224.17 | 1920 x 1200 | Acer Iconia Tab A700 |
| 10.06" | 300.24 | 2560 x 1600 | Google Nexus 10 |
| 9.7" | 263.92 | 2048 x 1536 | Apple Retina iPad |
| 9.6" | 458.94 | 3840 x 2160 | Astrodesign DM-3409 |
| 7" | 323.45 | 1920 x 1200 | Google Nexus 7 (2013) |
| 5.5" | 534.04 | 2560 x 1440 | LG Prototype |
| 5" | 440.58 | 1920 x 1080 | Samsung Galaxy S4 |
| 4.7" | 468.7 | 1920 x 1080 | HTC One |
| 0.74" | 2976.9 | 1920 x 1080 | SMD ST1080 |