QR Code Size Guide for Print - Minimum Sizes and Best Practices
QR Code Size Matters
A QR code that's too small won't scan reliably. One that's too large wastes valuable space. This guide helps you choose the right size for any print application.
Minimum Size by Application
| Application | Minimum Size | Recommended Size |
|---|---|---|
| Business cards | 20mm (0.8") | 25mm (1") |
| Flyers / A5 | 25mm (1") | 30mm (1.2") |
| Posters / A3 | 30mm (1.2") | 50mm (2") |
| Banners | 50mm (2") | 100mm (4") |
| Billboards | 300mm (12") | 500mm+ (20"+) |
| Product labels | 15mm (0.6") | 20mm (0.8") |
| Packaging | 20mm (0.8") | 30mm (1.2") |
The Scanning Distance Rule
A reliable rule of thumb: the QR code should be 1/10th of the scanning distance. If people will scan from 30cm (1 foot) away, the QR code should be at least 3cm. For a billboard scanned from 10 meters away, the QR code needs to be at least 1 meter.
File Format and Resolution
- SVG — Best for print. Vector format scales to any size with zero quality loss. Send this to your printer whenever possible
- PNG at 300 DPI — Good alternative when SVG isn't accepted. For a 3cm printed QR code at 300 DPI, you need at least 354 x 354 pixels
- JPG — Acceptable but not ideal. The lossy compression can blur edges. Use high quality (95%+) settings
Our generator produces high-resolution 800x800 pixel PNG/JPG files and clean SVG files suitable for professional printing.
Factors That Affect Scannability
Data density
More data = more modules = harder to scan at small sizes. A simple URL like "example.com" creates fewer modules than a full vCard with name, phone, email, and address. Keep encoded data minimal for small print sizes.
Error correction
Higher error correction makes QR codes more scannable but adds more modules. Our generator automatically uses HIGH error correction when a logo is present and MEDIUM otherwise — a good balance between reliability and size.
Logo overlay
QR codes with logos need to be slightly larger because the logo covers some of the data area. Add 20-30% more size when using a logo.
Print quality
Low-resolution printing (like thermal receipt printers) needs larger QR codes. High-quality offset printing can handle smaller sizes.
Testing Checklist
Before committing to a print run:
- Print a test at the actual intended size
- Scan with at least 3 different phones (iPhone, Android, older models)
- Test in different lighting conditions
- Verify the correct content appears when scanned
- Check that there's adequate quiet zone (white space) around the QR code
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