DPI Image Calculator
Image DPI for print quality.
Enter values above — results appear instantly as you type.
Formula
DPI = √(Width² + Height²) / DiagSize
Example
2400×3600 pixels at 12" → 360 DPI (print quality).
Image DPI for print quality.
DPI = √(Width² + Height²) / DiagSize
2400×3600 pixels at 12" → 360 DPI (print quality).