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SQR
Generate QR codesAPI Documentation
  • What is SQR?
  • Guides
    • Creating a QR code
      • Text QR code
        • What is a text QR code?
      • URL QR code
        • What is a URL QR code?
      • Phone QR code
        • What is a phone QR code?
      • SMS QR code
        • What is an SMS QR Code?
      • Email QR code
        • What is an Email QR code?
      • WhatsApp QR code
        • What is a WhatsApp QR code?
      • FaceTime QR code
        • What is a FaceTime QR code?
      • Location QR code
        • What is a Location QR code?
      • WiFi QR Code
        • What is a WiFi QR code?
      • Calendar Event QR Code
        • What is an Event QR code?
      • Crypto QR Code
        • What is a Crypto QR code?
      • vCard QR Code
        • What is a vCard QR code?
      • PayPal QR Code
        • What is a PayPal QR code?
    • Customise a QR code
    • Logo QR code
      • Add your logo to a QR code
      • Remove logo from QR code
    • QR quality settings
    • Download QR codes
    • Print QR codes
    • App store or Google Play?
  • Dashboard
    • Main dashboard overview
    • Generate QR
    • QR Codes
    • Dynamic short links
      • Create Dynamic short links
      • Dynamic short link Analytics
      • Connect a Dynamic short link to your QR codes
      • Short link targeting
      • Short link protection
      • Temporary URL
      • Set up UTM campaigns
      • How to set up A/B testing?
    • Projects
      • Create a new project
      • Connect short links to project
      • Connect QR codes to project
    • Pixels
      • Create a pixel
      • Connect a pixel to a short link
    • Custom domains
      • How you can add your own custom domain to SQR
      • The status of my domain is still pending
      • SSL of my custom domain is not working
      • Custom domains info
    • QR code analytics
    • Manage your team
      • Create a new team
      • Invite team members
      • Log in as the team
      • Accept an invite to the team
      • Get the team API key
    • Account details
      • Subscription plan
      • Invoices
      • Delete my account
    • SQR API
      • What limit of requests in one minute?
      • API Documentation
      • API Key
  • Questions and Answers
    • About QR codes in general
      • How do you read a QR code?
      • What is a QR code generator?
      • What Information Is inside a QR Code?
      • What is the difference between a static QR and a dynamic one?
      • What does Static and Dynamic QR codes mean?
      • What are QR codes useful for?
      • Can QR codes be scanned without an app?
      • What kind of information can be stored in a QR code?
      • Can my smartphone scan QR codes?
      • Is it possible to create different QR codes for the same content
      • Do QR codes have to be black and white?
      • What should I know before printing my QR codes?
      • How to read/scan a QR code?
      • What is the minimum size of a QR code?
    • About SQR
      • How long are QR codes valid for? Do they expire?
      • What graphic formats do the generated QR codes support?
      • How do I manage QR codes with SQR code generator?
      • Can I customize a QR code with my company logo or icon?
      • Can a QR code be edited/changed?
      • Are QR codes free?
      • Is it possible to count the QR code scans (tracking, analytics)?
      • How do I generate a large batch of QR codes?
      • Is there a scan limit for the QR codes?
      • Can I use the generated QR codes for commercial purposes?
      • Why is my QR code not working?
  • Extras
    • Cancel subscription
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  • Size
  • Error Correction Levels
  • Data Type

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  1. Questions and Answers
  2. About QR codes in general

What Information Is inside a QR Code?

PreviousWhat is a QR code generator?NextWhat is the difference between a static QR and a dynamic one?

Last updated 2 years ago

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Size

A QR code can be made up of a maximum of 177 rows and 177 columns, which makes for a possible 31,329 data modules. Most QR codes aren’t that big, though.

The size of a QR code corresponds to its version. The smallest a QR code can be is 21 rows by 21 columns, which is version 1. 25×25 is version 2, and on and on. The aforementioned largest QR code possible, 177×177, is version 40.

It’s also worth noting that is usually based on scan distance and not data size.

Error Correction Levels

Encoded in a QR code is one of four QR code error correction levels. The higher the correction level, the more damage a QR code can sustain while still being scannable. It’s like a stored backup of the QR code. The lower the correction level, the more space left for size and data.

Data Type

QR codes can store up to 7,089 numeric characters or 2,953 alphanumeric characters. They can also store bytes and kanji, but those are less frequently used. These numbers assume the lowest error correction level.

In practice, this means QR code uses include anything that uses numbers, letters, punctuation, and symbols to communicate. Business cards, QR codes on tables in restaurants, authentication, checking into hotels, logging into websites, contactless payments, digital wine lists, QR code food uses, and more.

For context, the amount of characters a standard one-dimensional barcode can hold is around 20 to 100 characters. This ability of QR codes to store such a large amount of information—and provide it quickly—makes them much more useful tools than standard barcodes. In virtually every industry.

But the more characters you store in a QR code, the bigger, and more complicated the QR code has to be, right? Yes and no. That’s the difference between static QR codes and dynamic QR codes.

QR code minimum size