What size QR code do you need for print
One formula and a table for common formats — from a business card to a building banner.
The formula
Rule of thumb: code side ≈ scanning distance ÷ 10. A card held 30 cm away needs a 3 cm code; a poster viewed from 2 metres needs 20 cm.
Size table
| Format | Distance | Code side |
|---|---|---|
| Business card, tag | 20–30 cm | 2–3 cm |
| Flyer, menu, greeting card | 30–40 cm | 3–4 cm |
| Table card | 40–60 cm | 4–6 cm |
| A3–A2 poster | 1–1.5 m | 10–15 cm |
| Shop window | 1.5–2 m | 15–20 cm |
| Banner, facade | 5–10 m | 50–100 cm |
Adjusting for density
The formula assumes an average code. A long link, a vCard with many fields or a large logo calls for 30–50% more size. A short link lets you go slightly smaller.
Minimum sizes
- 2 cm — the practical minimum for close-up scanning with good print quality.
- 1.5 cm — only for very short data and high-quality print, and still risky.
- For engraving and embroidery add about 30% — module edges come out softer.
Remember the quiet zone: add empty margin on every side of roughly 10% of the code width.
Checking size on a sheet
The A4 sheet dialog in the studio shows the real code size in millimetres for the chosen layout and warns you when it gets too small.
FAQ
What size should a code on a business card be?
At least 2–2.5 cm per side; 2.5 cm or more for a vCard with many fields.
How big should a roadside banner code be?
Roadside codes scan poorly — drivers cannot use them safely. If you must, follow the formula: about a metre from 10 metres away.