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Pixel Density & Resolution Calculator
Calculate PPI, total megapixels, and pixel dimensions for any screen or print.
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About this tool
Enter screen diagonal size and resolution to instantly calculate pixel density (PPI/DPI), total megapixels, and aspect ratio. Compare two devices side by side, calculate the pixel dimensions needed for a print at a given DPI and size, or convert between pixel dimensions and physical measurements. Includes a reference table of common screens and their PPI.
How to use
- 1 Enter the screen diagonal in inches and the horizontal and vertical pixel resolution.
- 2 Click 'Calculate PPI' to see pixel density, megapixels, and aspect ratio.
- 3 Use the Device Comparison section to compare two screens.
- 4 Use the Print Calculator to find pixel dimensions needed for a specific print size and DPI.
- 5 Check the reference table for PPI values of popular devices.
Frequently Asked Questions
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