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Global Trade Item Numbers

A Global Trade Item Number (GTIN) is a number that uniquely identifies a specific product. The GTIN specifications and standards cover several different types of trade codes, including UPC, EAN, and ISBN.

GTIN values follow an international standard and GTIN values are guaranteed to be globally unique. For details, see the GTIN home page.

The figure below shows samples of various types of GTIN barcodes.

The following table presents different GTIN standards, per locale and use-case:

GTIN locals and use cases

UPC

Locale

Length

Comments

GTIN-12
(UPC-12)

North America

12

Universal Product Code (UPC)

UPC-E codes with 8 digits should be migrated to a 12-digit GTIN-12 code.

GTIN 13
(EAN-13, UCC-13)

Europe

13

European Article Number (EAN)

GTIN-13
(JAN-13)

Japan

8 or 13

Japanese Article Number (JAN)

ISBN-13

All

13

International Standard Book Number (ISBN)

Only use ISBN codes for books. ISBN-10 codes should be migrated to ISBN-13.

GTIN-14
(ITF-14)

All

14

Interleaved Two of Five (ITF)

Only use ITF codes for multi-packs.

Converting UPC-E to UPC-A

In the following table, the number 0 and each of the letters a, b, c, d, and e represent individual digits in the bar code message, and the letter X represents the UPC check digit:

UPC-A Number

Equivalent Number in UPC-E

Comments

0ab00000cdeX

abcde0X

Manufacturer code must have 2 leading digits with 3 trailing zeros and the item number is limited to 3 digits (000 to 999).

0ab10000cdeX

abcde1X

Manufacturer code must have 3 leading digits ending with "1" and 2 trailing zeros. The item number is limited to 3 digits.

0ab20000cdeX

abcde2X

Manufacturer code must have 3 leading digits ending with "2" and 2 trailing zeros. The item number is limited to 3 digits.

0abc00000deX

abcde3X

Manufacturer code must have 3 leading digits and 2 trailing zeros. The item number is limited to 2 digits (00 to 99)

0abcd00000eX

abcde4X

Manufacturer code must have 4 leading digits with 1 trailing zero and the item number is limited to 1 digit (0 to 9).

0abcde00005X

abcde5X

Manufacturer code has all 5 digits.

0abcde00006X

abcde6X

The item number is limited to a single digit consisting of either 5, 6, 7, 8, or 9.

0abcde00007X

abcde7X

 

0abcde00008X

abcde8X

 

0abcde00009X

abcde9X

 

Converting SBN to ISBN

SBN was used in the Great Britain until 1974 and contained 9 digits. Add a leading 0 in order to convert SBN to ISBN. For example, change 123456789 to 0123456789.

ITF-14

ITF-14 is the GS1 implementation of an Interleaved 2 of 5 barcode and is used to encode a Global Trade Item Number. ITF-14 symbols are generally used to specify a packaging level of a product, such as a box containing of 24 packages of ramen. ITF-14 always encodes 14 digits.