Pixels to physical size
Print size calculator
Enter an image’s pixel dimensions and a planned pixels-per-inch value to calculate its physical print width and height. The same image can produce many print sizes because PPI is a chosen output density.
Image file
Use the image’s actual pixel dimensions. PPI describes how densely those pixels are placed in the planned print.
25.4 × 20.32 cm
REUSABLE JOB
Save these settings
The browser copy stays on this device. It can be cleared, so export the file when you need a backup.
Formula
What the calculator does
Each side in inches equals pixels divided by pixels per inch. Centimeters equal inches multiplied by exactly 2.54. Pixel dimensions describe the image file; the printer’s dots-per-inch capability is a separate device specification.
Keep the result honest
- Use the image’s actual pixel dimensions, not a screen preview size.
- Ask the print provider for its preferred effective PPI, bleed, and file setup.
- Resampling or enlarging a file does not create missing image detail.
Source notes
Definitions and methods behind the result
The exact relationship between inches and centimeters used in every result.
Open source