Barcode encyclopedia : Symbology upc-a
UPC-A, UPC-E, UPC Supplementals
UPC-A is used for marking products which are sold at retail in the USA.
The UPC-A Code and the assignment of manufacturer ID numbers is controlled in the U.S.A. by the Uniform Code Council located in Dayton, Ohio.
UPC-A is 12 digit symbology. UPC-A consist 11 digits and one check digit. The first digit is a number system digit that normally represents the type of product being identified. The following 5 digits are a manufacturers code and next 5 digits identify specific product.
UPC-E is smaller UPC symbology, only 7 digits for number system 0.It is often for small retail items. Contains only 6 digits, 7th digith is checksum.
UPC-A and UPC-E can contain two or five digits as supplemental digits to main code. This is used for periodicals nad publications. This symbol is added to right side of main symbol.
UPC-E is a variation of the UPC-A symbol that is used for number system 0. By suppressing zeroes, UPC-E codes can be printed in a very small space and are used for labeling small items.
Differences between UPC-A nad UPC-E
UPC-E is zero supperssed UPC, bacause compresses a normal UPC-A from 12 digit into 6 digit code, trailing zeros in the manufacturers code and leading zeros in the product identification part of barcode. 7th digit is checksum, UPC-E can be restored into 12 digit UPC-A symbology.
Table to converting UPC-A to UPC-E
|APC-A Number||Equivalent UPC-E||Notes|
|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 leadings 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 leadingsd digits nad 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. The item number is limited to a single digit consisting of either 5,6,7,8,9.|