What is Pixels per inch?
[[Image:Square_200x200.png|right|frame|The square shown above is 200 pixels by 200 pixels. To determine a monitor's PPI, measure the width and height, in inches, of the square as displayed on a given monitor. Dividing 200 by the measured width or height gives the monitor's horizontal or vertical PPI, respectively, at the current screen resolution.]] '''Pixels per inch''' ('''PPI''') or '''pixel density''' is a measurement of the [[display resolution|resolution]] of a [[computer display]], related to the size of the display in [[inch]]es and the total number of [[pixel]]s in the [[horizontal]] and [[vertical]] [[direction]]s. This measurement is often referred to as [[dots per inch]], though that measurement more accurately refers to the resolution of a [[computer printer]]. PPI may also be used to describe the resolution of an [[image scanner]] or [[digital camera]]; in this context, it is synonymous with [[samples per inch]]. ==Other websites== * [http://www.printrates.com/resources_DPI_PPI.php All About Photo Printing - The Differences between DPI and PPI] {{tech-stub}} [[Category:Display technology]]