Pixels Per Inch Calculator

Calculate the pixel density of a digital device based on its screen size and number of pixels.

A Pixel per inch (PPI) calculator is a tool used to determine the pixel density of a digital device. It is useful for determining the clarity of an image, video, or other digital media displayed on a device. PPI is typically used to compare the relative resolution of displays and is usually expressed in terms of dots per inch (DPI).

The PPI calculator has three main components: Diagonal screen size (in), Horizontal pixels, and Vertical pixels. The Diagonal screen size is the physical size of the display. The Horizontal pixels and Vertical pixels is the width and height of the display in pixels.

To calculate the PPI of a device, you need to divide its total pixels (the width multiplied by the height) by its diagonal screen size. For example:

  • Diagonal screen size: 5 inches

  • Horizontal pixels: 1920

  • Vertical pixels: 1080

  • Total pixels: Horizontal pixels x Vertical pixels

  • PPI: √ (Horizontal pixels ^2 + Vertical pixels ^2)

The other parameter that can be calculated is the dot pitch, which is the distance between two pixels on the display. This is calculated as the inverse of PPI.

  • Dot pitch: 1/ PPI

The PPI calculator is an essential tool for digital devices and is used to determine the clarity and resolution of the display. It is important to note that the higher the PPI, the sharper the image will be.

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