In common parlance, many people know the GTIN as a barcode, but technically the GTIN is the number below the barcode symbol itself, and can therefore also be used for other technologies such as 2D barcodes and RFID tags.
Our online tools make it easy for you to calculate check digits, find information based on a GTIN or GLN, and clarify whether you need a new GTIN.
The last digit of all GS1 numbers is a computer check digit, which is calculated based on the preceding digits. A check digit must be correct for barcodes to work as it ensures that numbers and barcodes are correctly composed.
Calculate your check digit by clicking the link below and entering your number. You can enter either 7, 11, 12, 13 or 17 digits in the calculator depeding on the barcode (GTIN-8, UPC, GTIN-13, GTIN-14 and SSCC).
Check digits are calculated according to the modulus 10 algorithm.
The barcode is your product's fingerprint. With GS1Trade Barcode, you can easily create correct barcodes for products and pallets - and download them with a single click, ready to use. You can generate the following barcode types: EAN-13 (.png), EAN-8 (.png), UPC-A (.png), GS1-128 (.pdf)
Our GTIN management tool guides you through some simple questions and explanatory infographics to give you a clear answer on whether or not to change a GTIN. It is fast, easy and mobile-friendly.
If you do business with the public sector, UNSPSC is the most efficient, flexible and comprehensive classification system available and many public institutions request UNSPSC codes for products.
UNSPSC is a classification standard owned by UNDP and operated by GS1 US. GS1 Denmark operates UNSPSC in Denmark.
Read more about the system and use the improved search tool below.
If you want to know more about how GS1 can create value for you and your business, contact our trained consultants who are ready to help you with use of our products and services.