What is the capacity of a QR code?

Data capacity: A single QR Code symbol can hold up to 7089 numeric characters, 4296 alphanumeric characters, 2953 bytes (binary data) or 1817 Kanji characters (character set according to JIS X 0208).

What is the maximum size of a QR code?

It is able to do so because a QR code has a maximum symbol size of 177×177 modules. So, it can have as much as 31,329 squares which can encode 3KB of data. That translates to a QR code data size of a total of 7,089 numeric characters or 4,269 alphanumeric ones.

How many blocks are in a QR code?

alphanumeric data, and they expand all the way up to version 40, which contains 4296 characters laid out in a block of 177×177 modules. Error checking lines are integrated to improve the integrity of the code, and QR codes can still function even when up to 30% of the surface area is obscured2.

How many variations of QR codes are there?

40 versions
There are 40 versions of the conventional QR code. Each version has a different number of data modules. Data modules are the black and white squares that make up a QR code. The higher the QR code version, the more data modules there are.

What is the minimum size of a QR code?

2 x 2 cm
The minimum size of a QR code is 2 x 2 cm, or roughly 0.8 x 0.8”. There is no standardized QR code size, and QR codes can actually be smaller than 2 x 2 centimeters. But to make sure the majority of current smartphones can scan it, a QR should be at least 2 centimeters wide by 2 centimeters long.

What is QR code level?

The lower the error correction level, the less dense the QR code image is, which improves minimum printing size. The higher the error correction level, the more damage it can sustain before it becomes unreadabale. Level L or Level M represent the best compromise between density and ruggedness for general marketing use.

Can QR Codes be rectangular?

Micro QR Codes in comparison with a normal size QR Code. In contrast to the square shape of a typical QR Code, iQR Codes use a rectangular shape. iQR Codes can hold both smaller and larger data amounts than traditional and micro QR Codes due to this shape.

How many bytes can be stored in a QR Code?

How Much Data Can a QR Code Carry? A standard version can contain 3 KB of data. A QR code features several rows and columns, the combination of which forms a grid of squares. The max number of columns and rows are 177, which means the maximum number of squares can 31,329 encoding 3 KB data.

How many pixels is a QR code?

QR Code Resolution Requirements A QR code’s minimum resolution should be 76 x 76 px, or 2 x 2 cm. That’s because 1 centimeter is approximately 38 pixels and the minimum QR code size is 2 x 2 cm.

What’s better than a QR code?

NFC tags. Near field communication (NFC) tags are one of the new tools that could potentially replace QR codes. Unlike QR codes, NFC tags do not require an extra application. The NFC chip technology already comes built into the majority of modern smartphones, which is a huge advantage.

Can QR codes be rectangular?

How is the density of a barcode determined?

The density or resolution of a barcode is dependent upon the narrowest element of a barcode (X dimension), and can vary from high resolution: nominally less than 0.009 inches (0.23 mm); medium resolution: between 0.009 inches (0.23 mm) and 0.020 inches (0.50 mm); and low resolution: greater than 0.020 inches (0.50 mm).

What’s the difference between a barcode and QR code?

A barcode is a machine-readable optical label that contains information about the item to which it is attached. In practice, QR codes often contain data for a locator, identifier, or tracker that points to a website or application.

How many bytes are in a QR code?

QR Code is a 2D barcode symbology with very high data density. In practice up to several hundred bytes are encoded in a single symbol. Each dot in a QR Code symbol represents a bit.

Where are QR codes used in the world?

QR Code is mainly used in Asia (Japan) for automotive and logistic applications. Starting with 2006/2007 the QR Code is also in use in the areas of mobile marketing and business (e.g.