Online PPI Calculator
Calculate pixels per inch from screen width, height (px), and diagonal (inches). PPI = √(width² + height²) / diagonal.
Frequently Asked Questions
- What is PPI?
- Pixels per inch (PPI) measures display density—how many pixels fit in one inch. Higher PPI means sharper image.
- How is PPI calculated?
- PPI = √(width² + height²) / diagonal, where width and height are in pixels and diagonal is in inches.
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