How to read barcodes manually

 · The easiest way to read a barcode is by using a scanner, either on your phone or at a store. If you do not have a scanner available, you will need a computer to look up the numbers. By visiting the GS1 Company Database, you can enter the GTIN to determine the business and the product associated with the barcode. 1. Add the digits (up to but not including the check digit) in the odd-numbered positions (first, third, fifth, etc.) together (0+2+0+0+2+0= 4) and multiply by three (4 x 3 = 12) 2. Add the digits (up to but not including the check digit) in the even-numbered positions (second, fourth, sixth, etc.) (1+0+0+0+3= 4) www.doorway.ruted Reading Time: 3 mins. Once you have your 12 digits, number their locations from 12 on the left to 1 on the right in descending order. For every odd location (11, 9, 7, etc.), multiply the number by three. Do not change the even location numbers. Then, add all 12 of these numbers together.

Manual Reading. A standard bar UPC contains some common elements, and then the ones that differentiate the product. Also, note that reading the code with your eyes can be a strenuous process, so take it easy with the lines, and use a magnifying glass if you have one. Reading the barcode can prove to be more than just a hobby. If you go. Although barcodes are designed to be "read" by scanners and interpreted by computers, it is possible with practice to look at a UPC barcode and translate it into a digit number. This is rarely useful, especially since the 12 digits are usually printed beneath the bars, but you could learn it as a neat trick to show your friends or coworkers. Answer (1 of 3): Theoretically, yes. Realistically, no. A barcode is just varying widths of high-contrast zones, or more simply, black and white bars. There are many different types of barcodes (aka symbologies), but if you could recognize the patterns for any particular one, you could essential.

1. Add the digits (up to but not including the check digit) in the odd-numbered positions (first, third, fifth, etc.) together (0+2+0+0+2+0= 4) and multiply by three (4 x 3 = 12) 2. Add the digits (up to but not including the check digit) in the even-numbered positions (second, fourth, sixth, etc.) (1+0+0+0+3= 4) 3. Manually reading a barcode is possible when you understand what the 12 numbers represent. The row of numbers found on a barcode is known as the Global Trade Item Number (GTIN). The first six digits represent the GS1 Company Prefix. The next five digits identify the product being sold. Each product is assigned a unique number when associated with your GS1 Company Prefix. The easiest way to read a barcode is by using a scanner, either on your phone or at a store. If you do not have a scanner available, you will need a computer to look up the numbers. By visiting the GS1 Company Database, you can enter the GTIN to determine the business and the product associated with the barcode.