Screen PPI Calculator
Calculate pixels per inch (PPI) from screen resolution and physical size. Shows dot pitch and total megapixels for any display.
How to Use Screen PPI Calculator
The Screen PPI Calculator determines the pixel density of any display from its resolution and physical size. Enter the screen width and height in pixels plus the diagonal size in inches to get PPI (pixels per inch), dot pitch (distance between pixels in mm), and total megapixels. Use it to compare display sharpness across monitors, phones, and tablets. Higher PPI means sharper text and images. The formula is PPI = √(width² + height²) / diagonal.
Step-by-Step Instructions
- Enter the screen width in pixels
- Enter the screen height in pixels
- Enter the screen diagonal size in inches
- Click Calculate to see PPI, dot pitch, and total pixels
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