Pixel Density Calculator
Free online pixel density calculator. Perfect for calculating pixels per inch (PPI) and dots per inch (DPI).
Did you know..
You can also input data directly into the fields by using a URL like this:

http://pixeldensitycalculator.com/?h=1280&v=720&d=20
Horizontal Pixels (x-pixels):
Vertical Pixels (y-pixels):
Diagonal Screen Size (in inches):
 
PPI:
Common Devices
A list of commonly searched devices can be found below
Samsung Galaxy S II 800x480 (4.3") 217 PPI
HTC EVO 3D 960x540 (4.3") 256 PPI
Sony Ericsson Xperia PLAY 854x480 (4") 245 PPI
HP TouchPad 1024x768 (9.7") 132 PPI
Apple iPhone 4 960x640 (3.5") 330 PPI
Nokia N9 854x480 (3.9") 251 PPI
Samsung Galaxy Tab 10.1 1280x800 (10.1") 149 PPI
Google / Samsung Galaxy Prime 1280x720 (4.65") 316 PPI
HTC Desire HD 800x480 (4.3") 217 PPI
Sony Ericsson Xperia ARC 854x480 (4.2") 233 PPI
Sony Ericsson Xperia PLAY 854x480 (4") 245 PPI
HTC Wildfire S 480x320 (3.2") 180 PPI
Apple iPad 2 1024x768 (9.7") 132 PPI
HTC Vigor 1280x720 (4.3") 342 PPI
Motorola Atrix 960x540 (4") 275 PPI
Blackberry PlayBook 1024x600 (7") 170 PPI
Samsung Series 9 1366x768 (13.3") 118 PPI
Apple MacBook Air 1366x768 (11.6") 136 PPI
PlayStation Vita 960x544 (5") 221 PPI
Asus UX31 1600x900 (13") 141 PPI
HTC Sensation (XE) 960x540 (4.3") 256 PPI
Apple iMac 2560x1440 (27") 109 PPI
PlayStation 3D Display 1920x1080 (24") 92 PPI
Apple MacBook Pro 1440x900 (15.4") 110 PPI