> For the complete documentation index, see [llms.txt](https://docs.sqr.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sqr.co/questions-and-answers/about-qr-codes-in-general/what-is-the-minimum-size-of-a-qr-code.md).

# What is the minimum size of a QR code?

Here is a formula to help you choose the best size: Scanning distance / 10 = Minimum QR code size. (A*s long as this number is not lower than 0,4 inches or 1cm).*

For example, if your customers will be 40" or 100cm away, your QR code’s size should be 4" or 10cm.

Always remember to test your QR code before printing it.

{% hint style="info" %}
**Good to know:** When creating your QR codes via [SQR](https://sqr.co/qr) you can set the "Error correction capability*"*. This will make the QR more readable when you customize it.
{% endhint %}