DPI & Print Size Calculator
The DPI Calculator computes the print size in inches, cm, and mm from pixel width/height and DPI — and works in reverse too, finding the required pixel size for a target print size and DPI. Pairs well with FREE PDF's image tools when preparing files for print.
How to use
- 1Choose the direction: Pixels → Print size or Print size → Pixels.
- 2Enter the relevant values (pixels/size and DPI).
- 3See the result in inches, cm, mm, or pixels.
Why FREE PDF?
- Completely free
- No account required
- Processing happens in your browser whenever possible
- Your files stay yours
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Frequently Asked Questions
What DPI should I use for print?
300 DPI is the common recommendation for high-quality print; large posters viewed from a distance can work well at 150 DPI.