Screen & PPI

Pixel density, screen dimensions and display aspect ratios.

• PPI Calculator

  Enter a screen's pixel resolution and diagonal size in inches to calculate pixels per inch (PPI).

• Screen Resolution Calculator

  Enter a screen resolution to see its megapixels, aspect ratio and common name, such as Full HD or 4K UHD.

• Monitor PPI Calculator

  Calculate a monitor's pixel density from its resolution and diagonal size, with guidance on what the number means for text sharpness.

• Pixel Density Calculator

  Calculate pixel density (PPI) for any display from its horizontal and vertical pixel counts and diagonal size.

• Screen Size Calculator

  Enter a diagonal size and an aspect ratio to find a screen's physical width and height in inches and centimeters.

• Display Aspect Ratio Calculator

  Find the aspect ratio of a display resolution, such as 16:9 for 1920 x 1080 or 21:9 for 2560 x 1080.

• Physical Screen Size Calculator

  Enter pixel resolution and diagonal size to calculate PPI and the screen's physical width and height.

• PPI vs DPI

  Understand the difference between PPI for displays and DPI for printing, with a side-by-side comparison and a PPI calculator.