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Pixels Per Inch (PPI) Calculator

Find the pixel density of any display from its resolution and diagonal size. It returns PPI, pixels per centimeter, the pixel pitch, and the active screen width and height.

How to use
  1. Enter the horizontal and vertical pixel resolution.
  2. Enter the diagonal screen size in inches.
  3. Check the pixel pitch and screen dimensions.
Device presets
Pixel density
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Metric density
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Pixel pitch
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Diagonal pixels
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Active width
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Active height
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Estimates for general information, verify important figures before relying on them.
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Common questions

What is a good PPI for a screen?

Phones often exceed 400 PPI, while desktop monitors around 90 to 110 PPI look sharp at normal viewing distance.

What is pixel pitch?

Pixel pitch is the distance between the centers of adjacent pixels, usually given in millimeters. A smaller pitch means a sharper image.

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