"Hey, guys I am wondering how to identify a barcode is UPC-E or EAN-8.
I created many barcodes in many formats and need those with basic digits without check digit. For example:
00000000123014 => 123014
01230148 => 123014
00000000565131 => 565131
05651315 => 565131
I thought the barcodes are UPC-E, but I got a strange barcode with a check digit 4. Is this a EAN-8 which with a checkdigit?
00000001000931 => 100093
01000931 => 100093
How could I make these things clear?
"
How to identify whether UPC-E or EAN-8
- 1
- 5
- 25/05/2012
- United States
The way how to convert a UPC-A to UPC-E should divide into several conditions, do you convert them correctly? UPC-A is like this（from KeepAutomation） http://www.keepautomation.com/products/net_barcode/barcodes/upce.html
: 0MMMMM-PPPPP+check digit. The M represents manufacturer code and the P stands for the product code.
1. If the manufacturer code ends in 000, 100, 200, the UPC-E can be stated like this: the first two characters of the manufacturer code, the last three characters of the product code and the third character of the manufacturer code. That is MMPPPM, in this group; the last M is 0, 1 or 2.
2. If the manufacturer code ends in 00, the UPC-E can be stated like, the first three characters of the manufacturer code, the last two product code and the digit 3. That is MMMPP3.
3. If the manufacturer code ends in 0, the UPC-E is the first 4 characters of the manufacturer code, the last character of the product code and followed by the digit 4.that is MMMMP4.
4. If the manufacturer code does not end in 0, the UPC-E is the entire manufacturer code and the digits range from 5 to 9.that is MMMMM5, MMMMM6, MMMMM7, MMMMM8 or MMMMM9.
: 0MMMMM-PPPPP+check digit. The M represents manufacturer code and the P stands for the product code.
1. If the manufacturer code ends in 000, 100, 200, the UPC-E can be stated like this: the first two characters of the manufacturer code, the last three characters of the product code and the third character of the manufacturer code. That is MMPPPM, in this group; the last M is 0, 1 or 2.
2. If the manufacturer code ends in 00, the UPC-E can be stated like, the first three characters of the manufacturer code, the last two product code and the digit 3. That is MMMPP3.
3. If the manufacturer code ends in 0, the UPC-E is the first 4 characters of the manufacturer code, the last character of the product code and followed by the digit 4.that is MMMMP4.
4. If the manufacturer code does not end in 0, the UPC-E is the entire manufacturer code and the digits range from 5 to 9.that is MMMMM5, MMMMM6, MMMMM7, MMMMM8 or MMMMM9.