QR print size checker

A small code still needs enough room.

Check your actual content, then print three sizes and scan them before the full run.

Enter your content to see the print measurements.

What the numbers mean

The margin is part of the code

Each side needs an empty margin four modules wide. More encoded content can mean more modules, so the same physical size can produce smaller details.

A starting check, then a real test

We flag modules below 0.4 mm or four printer dots as a conservative starting check. This is not a universal minimum or a scan guarantee. Material, glare, distance and cameras also matter.

Print the comparison at 100%

The A4 SVG includes 80%, 100% and 120% versions plus a 50 mm ruler. Print at actual size, turn off fit-to-page, and measure the ruler before comparing scans.

This tool checks plain square codes at high error correction (H). Re-test any version with a logo, color or decorative frame.

Choose a print template