DynaQR

QR code size calculator

Find the minimum printed size for a QR code based on how far away people will scan it and how much content it holds.

Minimum printed size11.6 cm4.6 in · 29×29 modules

Dynamic codes stay simple however long the destination, so they print smaller.

Make a dynamic codeSee plans and pricing

What it does

Enter how far away people will stand and what the code will contain. The calculator starts at a tenth of the scanning distance and adds size for codes with more content. Treat the result as a minimum.

Typical sizes

These are for a short web address. Longer content needs more room.

  • A table card read from 30 cm needs a code about 3 cm wide.
  • A poster read from 2 metres needs about 20 cm.
  • A shop window read from 5 metres needs about 50 cm.

Before you print

  • Measure the distance from where people will actually stand.
  • Place codes at a height people can reach with a phone.
  • Codes on screens follow the same rule. Test them from the back of the room.

If space is tight

A dynamic code contains a DynaQR link in place of the full address. That makes a simpler code, which can be printed smaller for the same distance.

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How it works

  1. 01Enter the scanning distance.
  2. 02Enter your content (more content means more, smaller dots).
  3. 03Print at least the recommended size.

Questions

What is the minimum QR code size?

About 2 cm (0.8 in) across for scanning up close.

Why does content length matter?

More content means more, smaller squares, so the code has to be printed larger.

What’s the largest size I can download?

The generator exports up to 100 cm wide. SVG files scale beyond that for large-format printing.

Does print resolution matter?

It does for PNG files, which we make at 300 dpi for the width you choose. SVG and PDF are vector files and stay sharp at any size.

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