QR Code Size for Flyers & Postcards: Minimum Safe Dimensions
Whether you're printing postcards, direct mail pieces, or handout flyers, choosing the right QR code size makes the difference between getting scans—or wasting your print budget.
Quick Answer: Recommended Size
- Postcards & Mailers: 0.8–1.0 in (2–2.5 cm)
- Handout Flyers: 1.0–1.2 in (2.5–3 cm)
- Posters: See distance-based calculator below
Postcards are scanned close-up, but flyers are often scanned from arm's length, so they need slightly larger QR codes.
Use the QR Code Size Calculator
Flyers and signage often get scanned from several feet away. Use our calculator to estimate the correct size using scan distance.
Minimum QR Code Size CalculatorHandouts and mailers are usually scanned in good lighting and from close distances, which makes them more forgiving than posters.
Recommended Sizes by Print Type
Postcards & Mailers
0.8–1.0 in (2–2.5 cm) is ideal for postcards scanned from 6–12 inches away.
Avoid glossy UV coatings—they create glare and reduce scan reliability.
Handout Flyers
1.0–1.2 in (2.5–3 cm) works best for flyers scanned at arm's length.
If your flyer has a busy background, increase the size slightly.
Large Posters
For posters, compute size using scan distance:
Minimum size ≈ Scan distance ÷ 10
Example: 6 ft distance → 7 inches minimum.
Where to Place QR Codes on Flyers & Postcards
Bottom Right Corner
The most consistent placement for postcards and direct mail pieces.
Front for Flyers
Keep the QR code where readers naturally look when holding the flyer.
Next to a Short CTA
“Scan to learn more” or “Scan for offer” increases engagement by 20–40%.
Avoid Edges
Leave a consistent margin so the QR code isn’t cut off during trimming.
Common QR Code Mistakes in Print Advertising
- • Printing QRs smaller than 0.8 in on postcards.
- • Putting the QR over a photo or textured background.
- • Poor contrast (light-on-light or color-on-color).
- • Not adding a call-to-action.
- • Using glossy finishes that reflect light.
- • Not testing prints before mass production.
Create Print-Ready QR Codes
Download your QR codes as PNG, JPG, or SVG—all sized correctly for print advertising.
Generate a QR CodeRelated Print Guides
Use distance-based sizing rules.
Compact sizing for handouts.
Design and optimization for mailers.