Calculators

PPI / Pixel Density Calculator

Calculate the pixel density (PPI), dot pitch and total pixels of a screen from its resolution and diagonal size.

in

Enter your values and press Calculate.

How to use the PPI / Pixel Density calculator

At typical viewing distances, phones look sharp from about 300 PPI and desktop monitors from about 110 PPI.

Formula

PPI = √(width² + height²) ÷ diagonal

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