Best QR Code Size for Printing (With Size and Distance Chart)

What is the best size for a printed QR code?

The best printed QR code size depends on how far away people will scan it. A simple rule of thumb: make the code about one tenth of the scanning distance. For a code read from 2 metres, print it around 20 cm; for one read from 30 cm, around 3 cm is enough.

This ratio works because a camera needs to see each black-and-white module clearly. Shrink the code, or increase the amount of data inside it, and the modules get smaller and harder to resolve. Get the size right and scanning becomes effortless.

QR code size and distance chart

Where it is used	Recommended size	Scanning distance
Business card / name badge	2–3 cm	10–20 cm
Flyer or menu table card	3–5 cm	30–50 cm
Product packaging / sticker	2–4 cm	10–30 cm
A4 poster on a door	5–8 cm	1 m
Large poster or banner	20–40 cm	2–5 m
Billboard / storefront	60 cm+	5 m+

How do you calculate the right size?

Start with the scanning distance and divide by ten. That gives you the minimum width of the code. Then add a safety margin, because lighting, phone cameras and print quality all vary. For anything important, round up rather than down.

The other half of the equation is the amount of data. Longer URLs mean denser codes with smaller modules. If you need to keep a code small, shorten the link first — a short, clean URL can cut the number of modules dramatically.

Why does the quiet zone matter?

The quiet zone is the empty margin around a QR code, and it should be at least four modules wide. Without it, phone cameras struggle to tell where the code ends and the background begins. Printed codes that run right to the edge of a coloured background are a common reason for failed scans.

Size tips for specific materials

• Business cards: keep the code at 2–2.5 cm and place it away from the folds.
• Menus and table tents: 3–4 cm works well, with a short link behind it.
• Flyers and posters: scale up with the viewing distance and keep strong contrast.
• Windows and storefronts: the bigger the viewing distance, the bigger the code — and skip the reflective glass.

Common sizing mistakes to avoid

Three mistakes cause most printing problems: making the code too small for its distance, crowding it with no quiet zone, and stuffing it with a long URL that makes the pattern too dense. Fix all three and you will rarely see a failed scan. When you are ready, generate a print-ready QR code and download it as SVG for the sharpest results.