Screen PPI Calculator
Pixel Density
Calculate display pixel density from resolution and diagonal size.
Method: PPI = diagonal pixels / diagonal inches.
Understanding Screen PPI
1. What This Calculator Measures
Screen PPI measures display pixel density from resolution and diagonal size.
2. How the Calculation Works
The calculator finds diagonal pixels with the Pythagorean theorem, then divides by diagonal inches.
3. Formula or Rule Used
PPI = sqrt(width^2 + height^2) / diagonal inches.
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