To convert you upc numbers to machine readable barcodes you will have to contact a barcoding agency which will provide you will a barcode graphics which you can print on product packaging. I would recommend placing a bulk order with your barcoding agency to get good discount.
If you need a lot of UPC codes then you should register for your own UPC prefix with GS1 (formerly UCC) so that you can issue your own UPC numbers. This can cost from $750 and up depending on how many UPC's you need to issue, plus an annual renewal fee. If you just need a few now and then, there are many companies on the web that offer UPC bar codes one at a time, just Google "buy UPC barcode" and you will find a few. Their prices range from $29-89 per UPC bar code, and some charge a one-time membership fee. You can view a comparison of companies which resell UPC codes at http://www.singleupc.com/resellermatrix.htm
Save them up, for redemption for 'swag': They have a website for more info!
Product bar codes, more formally knows as Universal Product Codes (UPC) are added to product to allow scanning at a point-of-sale terminal. Most large retailers will not accept products for sale unless there is a UPC attached. If you have a large number products needing bar codes, register your company directly with GS1, the worldwide standards authority which governs product bar codes. For smaller quantities of products, it is more economical to use one of the many companies which are registered with GS1 and will transfer one of their assigned numbers to your product.
The acronym "UPC" stands for Universal Product Code. These codes contain 12 digits, located below a barcode. These codes are usually scanned at the point of sale when an item is purchased.
I actually worked at a retail store for many years. When we implemented our bar code readers it was to read UPC codes of products. Our computer system would recognize the UPC and be able to then give the price we had assigned to the product. Each product has a unique UPC.
UPC codes are assigned by the non-profit organization GS1, which manages global supply chain standards. Companies work with GS1 to obtain a unique company prefix, which they then combine with unique product codes to create individual UPC codes for their products. This system helps ensure the uniqueness and global consistency of UPC codes.
A UPC barcode identifies an item by a series of black lines with numbers underneath. It allows for data on such items to be stored such as what the item is as well as price.
Universal Product Code. It's the bar code and numbers used to identify a product.
UPC
93
Linear bar codes are the most common bar code font. Other bar code fonts include GS1 databar, Intelligent Mail, POSTNET & PLANET, UPC & EAN, and Code 93.
Bar codes are primarily used to identify an item or product. This is most commonly seen in UPC codes on products for sale, but local bar code methods can be used to keep business stock inventory, track invoices and records, and identify automobile components.