Print DPI calculator

Convert page and print dimensions across Millimeters, Inches, Pixels, and PDF Points at any resolution, with paper presets, bleed allowance, and uncompressed file-size estimates for prepress and web.

How to Print DPI calculator

1. Step 1. Pick a paper preset (A4, Letter, Business Card…) or enter custom width and height.
2. Step 2. Choose the input unit (mm, cm, in, pt, px) and the target DPI.
3. Step 3. Optionally enable a print bleed allowance for trim safety.
4. Step 4. Copy any equivalent dimension or the generated Python/CSS page-size snippet.

Frequently asked questions

How do I convert mm to pixels for print?

Enter the width in millimeters, set the DPI (300 for high-quality print), and the tool converts to pixels automatically using inches × DPI.

What DPI should I use for print?

300 DPI is standard for high-quality print; 150 DPI suits drafts and large-format viewing distances; 72–96 DPI is screen-only.

What is print bleed?

Bleed is extra artwork extending past the trim edge (typically 3 mm) so the final cut never reveals a white border. This tool adds it to every dimension.