Best QR Code Size for Printing
Published January 26, 2026 · QR Toolkit Editorial Team
A simple formula: QR code size should be at least 1/10th of the scanning distance. A code scanned from 3 feet (36 inches) away should be at least 3.6 inches square; one scanned from arm's length (about 12 inches) can be as small as 1.2 inches.
The formula
Minimum size = scanning distance ÷ 10
Recommended sizes by use case
| Use case | Typical distance | Minimum size |
|---|---|---|
| Business card | ~8–12 in | 0.8–1.2 in |
| Table tent / receipt | ~12–18 in | 1.2–1.8 in |
| Counter sign | ~2–4 ft | 2.4–4.8 in |
| Poster / window decal | ~5–10 ft | 6–12 in |
| Billboard / large signage | ~20+ ft | 24+ in |
Other factors that affect scannability
- More data (long URLs, WiFi with a long password) makes the pattern denser — increase size slightly to compensate.
- Low lighting or glossy surfaces can require a larger code than the formula suggests.
- A logo reduces available error correction — see QR codes with a logo.
Always test a printed sample at actual size before a full print run — see how to print a QR code correctly.
Frequently asked questions
What's a safe default size if I'm not sure of the scanning distance?
About 1.5 inches (3.8 cm) square works for most close-to-moderate distance uses, like table cards and posters viewed from a few feet away.