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Pixels Per Inch (PPI) Calculator

PPI Calculator

Our PPI (Pixels Per Inch) Calculator helps you determine the pixel density of displays and images. This is crucial for:

  • Screen resolution analysis
  • Image quality assessment
  • Display manufacturing
  • Digital design
  • Print preparation

How to Use Our PPI Calculator

  1. Enter the display/image width in pixels
  2. Enter the display/image height in pixels
  3. Input the diagonal screen size in inches
  4. Get the calculated PPI value
  5. View additional display metrics

The calculator provides:

  • Pixels Per Inch (PPI)
  • Total pixel count
  • Aspect ratio
  • Display area
  • Pixel density category (e.g., Retina, HD, 4K)

The formula used is: PPI = √(width² + height²) ÷ diagonal size

Note: Higher PPI values generally indicate sharper images and clearer text. For reference, “Retina” displays typically have 220+ PPI, while 4K monitors often range from 140-200 PPI depending on size.

PPI Calculator updated at