The recommended minimum QR code print size will depend on your use case. However, a good rule of thumb is 2 x 2cm (0.8 x 0.8in) for dynamic codes and 3 x 3cm (1.2 x 1.2in) for static codes. The actual size you need depends on the printing medium and the ideal scanning distance, so follow the best practices for QR code sizing and printing essentials.

It is important to note that the size of the QR code will also be determined by the encoded data, error correction level, scannability, and printing. The more data a QR code stores, the larger the print size must be to ensure proper scannability. Smaller QR codes hold less data and printing them in a smaller size could potentially lead to scanning problems, so keep in mind when choosing which print size to use. A significantly bigger print size will be needed if the print material is a large medium, such as a billboard.