QR code size guide: how big should you print it?
The right size depends on how far away people will stand when they scan. A code that works on a business card is useless on a shop window. Start with distance, then adjust for how much data the code holds and how it will be printed.
The 10:1 rule
A common rule of thumb is to make the code at least one tenth of the scanning distance. For a scan from 2 meters, print the code at about 20 cm wide. Phone cameras and light vary, so treat the result as a starting point.
| Scanning distance | Minimum code width | Typical use |
|---|---|---|
| 30 cm (1 ft) | 3 cm (1.2 in) | Table tent, packaging |
| 1 m (3.3 ft) | 10 cm (4 in) | Counter sign, flyer on a wall |
| 2 m (6.6 ft) | 20 cm (8 in) | Poster |
| 5 m (16 ft) | 50 cm (20 in) | Shop window |
| 10 m (33 ft) | 1 m (3.3 ft) | Large banner |
The smallest size worth printing
Published minimums range from about 1 cm to 2.5 cm. The most common advice is 2 x 2 cm (about 0.8 x 0.8 in) for a code read up close. Go smaller only after testing the real print, because ink spread and paper texture matter more at that size.
What can make a code need more room
- More data means more modules, the small squares in the pattern. A long web address makes each one smaller at the same print size.
- A dynamic code stores a short redirect link, so its pattern usually stays simpler than a long static URL.
- Rough or glossy materials can blur edges or reflect light. Leave extra margin for both.
- A logo covers part of the pattern. Scan the finished design, not only the plain version.
Keep the quiet zone and contrast
The quiet zone is the clear margin around a code. The QR standard calls for four modules on every side, and scanners rely on it to find the pattern. Do not let text, borders or a busy photo run into it.
- Use a dark code on a light background whenever you can.
- Check colored codes on the actual printer. A shade that looks strong on screen can print pale.
- For raster files, work at 300 dpi at the final print size. SVG and PDF files scale without losing edge quality.
Test before the full print run
- Export the final design and print one copy at actual size on the real material.
- Place it where it will be used, in the same light.
- Scan from the farthest realistic distance with at least two phones, one of them older.
- Confirm it opens the right destination, then approve the run.
Frequently asked questions
What is the minimum size for a QR code?
Most print advice settles on about 2 x 2 cm (0.8 x 0.8 in) for a code scanned up close. Test a real print before going smaller.
How do I work out QR code size from distance?
Divide the scanning distance by 10. A code scanned from 3 meters should be about 30 cm wide.
Which file format is best for printing a QR code?
SVG or PDF is usually best for print because the edges stay sharp at any size. If you use PNG, export it large enough for 300 dpi at the final print size.
Related pages
Explore QR Studio
Share a link or a file
For a code that opens something the moment it is scanned.
- URL QR codeSend scanners straight to any web page.
- PDF QR codeOpen a brochure or manual from a printed sheet.
- Menu QR codePut a menu on every table without reprinting it.
- App download QR codeLead phone users to your app listing.
Connect people
For cards, front desks and shop windows.
- vCard QR codeSave your contact details to a phone in one scan.
- WiFi QR codeLet guests join the network without typing a password.
- WhatsApp QR codeOpen a chat with your number already filled in.
- Email QR codeStart a message to the right inbox.
Grow a following
For packaging, posters and event signs.
- Instagram QR codeTake people to your profile from print.
- TikTok QR codeTurn a poster into new viewers.
- YouTube QR codePlay a video or open a channel.
- Google Maps QR codeGive directions to your front door.
Print it right
For codes that have to work the first time.
- Colored QR codesPick colors that still scan.
- Fix a blurry QR codeClean up a damaged or low-quality code.