QR Code Size for Posters & Indoor Signage
Posters and indoor signs are scanned from several feet away. Use this distance-based sizing guide to make sure your QR codes always scan, even in real-world lighting and environments.
Quick Answer: Use the Distance Rule
A safe minimum QR code size for posters is:
Viewing Distance ÷ 10
Example: If people stand 8 ft away → minimum QR code size is ~0.8 ft (9.6 inches).
This rule works reliably for classrooms, events, retail environments, office walls, and indoor signage.
Use the QR Code Size Calculator
Posters vary widely in viewing distance. For precise sizing, use our QR code calculator based on distance.
Minimum QR Code Size CalculatorIndoor posters are often scanned from 3–15 feet away. Under bright lighting, smaller sizes may work — but using the distance rule keeps your prints safe.
Sizing Examples for Common Poster Distances
Classroom Posters
Students scan from 3–5 ft away → QR size should be 4–6 inches (10–15 cm).
Office Wall Signs
Viewed from 5–8 ft → use 6–10 inches (15–25 cm).
Conference Booth Posters
Scanned from 8–12 ft → aim for 10–15 inches (25–38 cm).
Placement Tips for Poster QR Codes
Eye-Level Placement
People scan more often when the QR code sits at standing eye height (around 5–5.5 ft).
Avoid Busy Backgrounds
Strong contrast and clean space massively improve scan rates.
Use a Clear CTA
“Scan for details” or “Scan to register” increases engagement by 20–40%.
Avoid Corners
Keep QR codes away from poster edges where frames or lighting may obscure them.
Common QR Code Mistakes on Posters
- • Printing QR codes too small for viewing distance.
- • Dark-on-dark color combinations.
- • QR codes placed too close to the edges.
- • Lack of quiet zone around the QR code.
- • Reflective or glossy materials causing glare.
- • No call-to-action explaining the benefit.
Create a Poster-Ready QR Code
Generate dynamic QR codes sized correctly for posters and indoor signage.
Generate a QR CodeRelated Print Guides
Use the distance-based calculator.
Compact sizing for close-up scanning.
Handout and mailer sizing