QR Code Scan Distance Chart
How far away can a QR code be scanned? Use this chart to pick the right size for posters, menus, signs, product packaging, and outdoor advertising.
Quick Rule for Scan Distance
The simplest formula for QR size:
QR Height ≈ Viewing Distance ÷ 10
Works for indoor uses like posters, menus, flyers, and presentations.
Outdoor Rule: QR Height ≈ Distance ÷ 8
Outdoors is harsher, so use larger sizing.
QR Code Scan Distance Chart
| Viewing Distance | Indoor QR Size | Outdoor QR Size | Common Use Cases |
|---|---|---|---|
| 1–2 ft | 1–2 in (2–5 cm) | 2–3 in (5–7.5 cm) | Menus, table tents, packaging |
| 3–5 ft | 2–4 in (5–10 cm) | 4–6 in (10–15 cm) | Posters, countertop signs |
| 6–10 ft | 6–12 in (15–30 cm) | 12–20 in (30–50 cm) | Medium signage, window displays |
| 10–20 ft | 12–24 in (30–60 cm) | 24–36 in (60–90 cm) | Yard signs, outdoor posters |
| 20–50 ft | 2–5 ft | 3–6 ft | Large outdoor signs |
| 50–300 ft | 5–15 ft | 10–20 ft | Billboards |
Scan Distance Factors
- • Brightness and contrast affect long-distance scans.
- • Low-resolution QR images blur when enlarged.
- • Outdoor glare requires oversized codes.
- • Moving users (cars, pedestrians) reduce scanning time.
- • Always give your QR code a white padding box.
Get the Right QR Code Size Every Time
Use our minimum size calculator for precise print and signage sizing.
Minimum QR Code Size CalculatorRelated Guides
Poster & Signage Size
Indoor signage rules.
Outdoor QR Size
Outdoor & billboard rules.
QR Code Size Calculator
Distance-based sizing tool.