PPI DPI Calculator
Calculate pixels per inch, dot pitch, physical screen width and display density from resolution and diagonal size.
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Scaling settings and operating-system DPI do not change the panel’s physical pixel density.
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Test a different diagonal size or resolution without changing your main input.
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PPI is the diagonal pixel count divided by the physical diagonal size: sqrt(width² + height²) ÷ diagonal inches. DPI is shown as the same density value for screen-reference use.
Dot pitch is the physical space between neighbouring pixels. It is calculated as 25.4 ÷ PPI in millimetres. Lower dot pitch means smaller, denser pixels.
No. Operating-system scaling changes interface size, but the panel’s physical PPI is set by its native pixel resolution and physical diagonal size.
Results are mathematical estimates generated locally in your browser from the resolution and diagonal size you enter. Real panels can vary slightly because of rounded marketing sizes, non-square pixels on rare displays, bezels, overscan, or non-native display modes. VisionVix accepts no liability for purchase, design or calibration decisions based on this output.