QR Code Minimum Size (for Print and Screens)
Published September 26, 2026 ยท QR Toolkit Editorial Team
QR code minimum size depends on how far away people will be standing when they scan it. As a rule of thumb, the code's width should be at least 1/10th of the scanning distance. A code scanned from 10 feet away needs to be at least 1 foot wide.
Minimum sizes by use case
| Use case | Minimum size | Typical scan distance |
|---|---|---|
| Business card | 0.8 in / 2 cm | 4 to 6 in |
| Flyer or menu | 1.2 to 1.5 in / 3 to 4 cm | 8 to 12 in |
| Table tent | 1.5 to 2 in / 4 to 5 cm | 1 to 2 ft |
| Poster | 2 to 3 in / 5 to 8 cm | 2 to 4 ft |
| Window sign | 4 to 6 in / 10 to 15 cm | 3 to 6 ft |
These are starting points, not guarantees. The exact distance a code scans from depends on the phone's camera, lighting, and how the code was printed, so treat the ranges above as a safe minimum rather than an exact figure.
The distance-to-size rule of thumb
A commonly used estimate is that a QR code should be at least 1/10th the size of its intended scanning distance. Scanning from across a room, say 10 feet, calls for a code at least 10 inches wide. Scanning from a few inches away, like a business card, needs only a fraction of an inch. When in doubt, size up rather than down, an oversized code always scans fine, an undersized one might not.
Quiet zone: the margin matters as much as the code
Every QR code needs a blank border around it, called the quiet zone, so scanners can tell where the code starts and stops. As a guideline, leave a margin at least as wide as 4 modules (the small squares that make up the code), roughly 2 to 4mm on a small printed code. Don't crop the code tight against text, logos, or a border, that's one of the most common reasons an otherwise correctly sized code fails to scan.
More data means a denser code
A QR code encoding a short URL is much simpler than one encoding a full vCard or a long block of WiFi credentials. More data means more modules packed into the same grid, which makes each module smaller relative to the overall code size. A dense code needs to be printed larger than a simple one to stay reliably scannable at the same distance. If you're encoding a lot of text, either size the code up or shorten the content, a short link instead of a long one, for example.
Related
For step-by-step printing advice, see how to print a QR code and, for business cards specifically, how to create a QR code for a business card. For large prints like posters or window signs, the SVG QR code generator gives you a vector file that stays sharp at any size.
Frequently asked questions
What is the minimum size for a QR code on a business card?
About 0.8 inches (2 cm) square, scanned from roughly 4 to 6 inches away. Business cards are read up close, so a small code still works if the quiet zone and contrast are good.
Why won't my QR code scan even though it looks big enough?
Usually it's the quiet zone, the blank margin around the code, being too small or crowded by other design elements. It can also be low contrast, a blurry print, or a code that encodes too much data for its printed size.