Best QR Code size for print: minimum sizes and a test checklist
Print a QR Code at least 2 × 2 cm for close-range scanning, and about one-tenth as wide as the scanning distance for signs and posters. Keep a blank margin of at least 4 modules around it and test a printed proof first.
The short answer
Print a QR Code at least 2 × 2 cm (about 0.8 in) for close-range use, and make it larger as the scanning distance grows. A common rule of thumb is a code about one-tenth as wide as the distance it will be scanned from: a poster scanned from 2 m away should carry a code around 20 cm wide. These are starting points, not guarantees. A denser code (longer link) needs more room.
Size by distance
| Where it is scanned | Typical distance | Starting size |
|---|---|---|
| Business card, flyer, menu in hand | 20–30 cm | 2–3 cm |
| Table tent, shelf label, packaging | 30–50 cm | 3–4 cm |
| Poster, window sign | 1–2 m | 10–20 cm |
| Billboard, large banner | 5 m or more | 50 cm or more |
The distances are estimates for a phone camera. Always print one proof at the real size and scan it from the real distance.
Keep the quiet zone
The quiet zone is the blank margin around the code. The usual rule is at least 4 modules (4 of the code's small squares) of empty space on every side. If your layout crops it or puts text or a border against the code, scanners may fail. See QR Code not scanning? 9 fixes.
Resolution and format
- For print, export a large image or a vector file. A small PNG stretched to a larger size turns blurry, and blur breaks the pattern.
- StyloQR exports PNG, 4K PNG, SVG, and PDF for single codes. See PNG vs SVG vs PDF for which to send a printer.
- Keep the proportions square. Never stretch a code in a layout tool.
Make the code easier to print small
- Shorten the link. Fewer characters mean bigger squares at the same size.
- Skip the logo on very small codes. See how to add a logo without breaking the code.
- Use dark dots on a light background with strong contrast.
Test checklist before the print run
- Print one proof at the exact final size, on the final material if you can.
- Scan it with two phones, from the real distance and in the real light.
- Check the link opens the right page.
- Only then print the whole run.
You can make and export a code for free with the StyloQR Chrome extension.
Frequently asked questions
What is the smallest QR Code size that works?
Around 2 × 2 cm (0.8 in) is a common minimum for close-range scanning, but it depends on how dense the code is. A short link makes a simpler code that scans at smaller sizes.
How big should a QR Code be on a poster?
Use the one-tenth rule as a starting point: scanned from 2 m away, aim for about 20 cm wide, then test a proof.
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