Log In Create Card

Choosing the Right Size for a QR Code

The appropriate size of a QR code for your marketing campaigns plays a key role in their success by ensuring recognizability and engagement of the audience. It's important to emphasize that the optimal size can vary depending on the type of advertising surface and the conditions under which the QR code is expected to be scanned. A common mistake in QR code development is choosing the wrong size. To ensure QR code readability, the following aspects need to be considered:

  • The distance from which the QR code will be scanned
  • The placement location of the QR code
  • The color scheme of the QR code

Scanning Distance for QR Codes

The relationship between the size of the QR code and the scanning distance should be considered when planning the placement of QR codes in advertising campaigns. This applies to all types of advertising materials, from packaging to billboards. For example, using too small QR codes for billboard advertising would be impractical.

When placing QR codes, it's important to consider:

The distance between the QR code and the user's device

This greatly affects the size of the QR code on the smartphone screen.

The size of elements within the QR code

As the amount of encoded information increases, the elements of the code become smaller, which is especially noticeable when creating static QR codes. With the minimal size of a QR code, readability decreases, especially if the code contains a lot of data. In such cases, it's recommended to use dynamic QR codes, which scan better and maintain quality.

Avoid inverting the colors of QR codes.

Inverted colors of QR codes, with a dark background and light elements, can make scanning difficult. It's important that the color of the code elements be darker than the background, and the use of light and pastel tones be minimized.

Dynamic QR Code for Improved Scanning

The difference between static and dynamic QR codes lies in the way data is stored. Static QR codes can become pixelated with a large amount of data, complicating their scanning. For a larger volume of information, it's preferable to use dynamic QR codes.

Minimum Size of QR Code for Close-Distance Scanning

The minimum acceptable size for a QR code is 1.2 inches (approximately 3–4 cm), allowing it to be scanned from a short distance. It's also important to consider placing QR codes in high-traffic areas. For digital business cards, the optimal size of a QR code is at least 0.8 x 0.8 inches, ensuring its scanability from a short distance.

Correct Sizes of QR Code for Long-Distance Scanning

For billboards, the size of the QR code needs to be increased to ensure scanning from a long distance. For example, a billboard located 20 meters away from the passerby should have a QR code size of about 2 meters in width.