1. Go to the Check Digit Calculator
2. Enter your GS1 key without check digit, i.e. the GS1 Company Prefix and a sequence number.
If you are a GS1 Sweden customer, you can log in to MyGS1 and use our service Generate numbers, where you can generate several GTIN-13 at the same time. The service also lets you generate GTIN-14, GLN, SSCC and GSIN, based on your GS1 Company Prefix.
You must keep track of the numbers you use as this is not registered with us. You can save your numbers by registering your products with the My Products function in MyGS1. You can also find the tool Generate Numbers in MyGS1, which helps you to find available numbers in your number series.