PRINT GUIDE
How large should a printed QR code be?
Large enough to scan, small enough not to colonize the entire design. The payload decides more than the label on the printer.
QUICK ANSWER
What is a good QR code print size?
For ordinary hand-held scanning, 1 × 1 inch is a practical starting size. A 0.5-inch code can work for a short website address with excellent printing. Move to 1.5 inches for unusually dense payloads, center text, or more scanning margin. Always test the final printed piece with several phones.
Create a print-ready QR codeScreenCode size options
| Printed size | Size in millimeters | Export at 300 DPI | Best use |
|---|---|---|---|
| 0.5 × 0.5 in | 12.7 × 12.7 mm | 150 × 150 px | Short website addresses and tightly controlled, high-quality printing |
| 1 × 1 in | 25.4 × 25.4 mm | 300 × 300 px | Typical Direct Add vCards, business cards, handouts, and product inserts |
| 1.5 × 1.5 in | 38.1 × 38.1 mm | 450 × 450 px | Longer payloads, center text, packaging, and additional scanning margin |
| 2 × 2 in | 50.8 × 50.8 mm | 600 × 600 px | Posters, logos inside the code, and scanning from farther away |
| 3 × 3 in | 76.2 × 76.2 mm | 900 × 900 px | Large-format stickers, signs, and greater scanning distance |
These are practical starting points, not magic guarantees. A long vCard or Wi-Fi payload produces more modules than a short URL, so each square becomes smaller at the same physical size. ScreenCode adjusts the available size and customization choices to the selected QR type.
What is the minimum QR code size for print?
There is no single minimum physical size that works for every QR code. The amount of data, the blank border, printing quality and scanning distance all matter. The smaller sizes above are starting points for testing, not a guarantee that a dense contact code will scan.
For a business card, start with the 1-inch option and test it at actual size. If it is difficult to scan, increase the size or remove optional contact fields rather than trimming the border. Our business-card QR guide explains when to use a website link or an embedded contact record.
How many pixels does a printed QR code need?
At 300 DPI, multiply the printed width in inches by 300 to find the target pixel width. A 1-inch square is 300 × 300 pixels; a 2-inch square is 600 × 600 pixels. If you double the printed width of the same image without adding pixels, its effective resolution halves.
Keep the exported image square, including its blank border. Resolution alone does not guarantee scanning: each small square in the code must still have a clean edge. DENSO WAVE specifies a four-module margin around a standard QR code, so do not crop away that space to make the artwork fit.
Four rules that matter more than decoration
- Preserve the quiet zone. Keep at least four blank modules around every side of the code.
- Use strong contrast. Dark modules on a light background remain the safest choice.
- Do not stretch the image. Keep it perfectly square and scale width and height together.
- Test the actual print. A pristine file proves nothing if the printer bleeds, blurs, or trims it.
Module size explains why dense codes fail
A QR code is a grid of individual modules. More encoded data creates a larger grid. When the overall printed size stays fixed, each module shrinks. ScreenCode evaluates the specific payload rather than pretending one size works equally well for every code.
SVG, PNG, or JPG?
Use SVG for scalable print artwork because the QR modules remain vector shapes at any production size. PNG is the best raster alternative because its hard edges suit black-and-white modules. JPG can work, but compression may add blur or gray artifacts around module edges. In ScreenCode, design previews are free. Sign in with a free account to export PNG or JPG; SVG export requires Pro. Choose the intended print size in the generator before exporting.
One QR code you should not print
A two-factor authentication (2FA) setup QR code contains the secret used to enroll an authenticator app. Treat it like a password: do not print it, share it, or leave the image somewhere other people can access.
If the setup code appears on the same phone that needs to scan it, take a screenshot and use ScreenCode's free scanning tool to read it locally in your browser. You can then open the setup in your authenticator without needing a second device. Delete the screenshot after enrollment is complete.
Scan a 2FA QR code from a screenshotCan a QR code include a logo or center text?
Yes, within limits. Center text is available on 1.5-inch, 2-inch, and 3-inch codes. Logos are reserved for 2-inch and 3-inch codes, and a code cannot use both. ScreenCode uses high error correction and keeps the finder corners intact, but every customized code still needs a physical test. Error correction is a safety margin, not divine intervention.