TL;DR
- QRs must be at least 4× the scan distance (e.g., 2 m distance → 20 cm QR).
- Use error correction H for outdoor signage and posters.
- Add captions (“Scan for menu”) to improve user confidence.
- Always keep the quiet zone free of logos or frames.
QR Code Guide
QR Code Print Sizes
Match your QR code dimensions to the viewing distance so people scan on the first try.
- Business cards: ≥20 mm
- Menus/posters: 30–50 mm+
- Billboards: 4× scan distance
Size cheat sheet
| Surface | Minimum size | Recommended error correction |
|---|---|---|
| Business cards | 20 mm (0.8 in) @ 300 DPI | M |
| Menu/table tent | 30–35 mm | Q |
| Poster/A-frame | 50+ mm with caption | H |
| Billboard | 120+ mm, high contrast | H (test from real distance) |
How to test
- Print a draft, place it at intended height, and scan using both iOS/Android.
- Check at day/night lighting if signage is outdoors.
- Stress-test by partially covering edges to simulate wear.
Templates
Download ready-to-print templates for business cards, table tents, and A-frame posters.
Download size pack →