QR Code Size Calculator
Print a QR code about one tenth as wide as the distance it will be scanned from: 10 cm (4 in) for a phone 1 m (3.3 ft) away. Paste your content below for the exact size, since longer content makes a denser code that needs more room.
Paste the link or text you will encode. Longer content makes a denser code that needs more room. It stays on this device.
Error correction
Print it at least this wide
Working it out...
About QR Code Size Calculator
Work out how big to print a QR code so phones scan it from your chosen distance, in cm and inches, from the real code your link makes. Free.
Key Features
- Printed width for any scan distance, in centimetres and inches
- Measures the real code your content makes, not a rule of thumb alone
- Scan distances for common sizes, from stickers to posters
- Warns when squares print too small for most printers
- Runs entirely in your browser, with nothing uploaded
How to Work Out the Size of a QR Code
Find the printed width a QR code needs in three steps.
Paste the content
Type or paste the exact link or text the code will hold. Longer content makes a denser code that needs more room.
Pick the error correction
Use M for a plain code, and Q or H if the code will carry a logo or face wear.
Set the scan distance
Slide to how far away people will stand. The calculator shows the width to print, and how far common sizes scan from.