The Global Language of Business

GS1 Denmark's terms and conditions and prices are changing as from 1 January 2024. Read more here

NOTE: Thursday April 25th we can only be contacted by email info@gs1.dk, due to an internal event.

NOTE: Monday September 18th and Tuesday September 19th until 12 noon, we can only be contacted by email info@gs1.dk, due to an external event

Tools

Our online tools make it easy for you to calculate the correct check digit, find information based on a GTIN or GLN and keep track of when you might need to change a GTIN.

Find all our self-help tools below and move on quickly.

Calculate your check digit

The last digit in all GS1 numbers is a check digit, which is calculated from the preceding digits. The check digit must be correct before the barcode can be read and used as a check of both the number and the barcode.

You can calculate your check digit by entering either 7, 11, 12, 13 and 17 digits in the calculator in the link below, corresponding to e.g. UPC, GTIN-8, GTIN-13, GTIN-14 and SSCC).

Check digits are calculated according to the modulus 10 algorithm.

Go to check digit calculator

Generate your barcodes online

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)

Go to GS1Trade Barcode

Verified by GS1

With Verified by GS1, you can access branded product data related to the GS1ID stored in a GS1Trade Activate service.

Go to Verified by GS1

GEPIR

With the free online service GEPIR, you can access information about the registered owners of a GTIN or GLN, such as company name, address and website.

Go to GEPIR

When do I need to change GTINs?

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.

Go to the GTIN tool

UNSPSC

UNSPSC is a classification standard owned by UNDP and operated by GS1 US. For the Danish version of UNSPSC, GS1 Denmark is responsible for the operation.

If you're doing business with the government, UNSPSC is the most efficient, flexible and comprehensive classification system available, and many public institutions request UNSPSC codes for products.

Read more about the system and try the improved search tool.

Go to UNSPSC

We are ready to help

If you want to know more about how GS1 can create value for you, we recommend that you contact our trained advisors who are ready to advise you on our products and services.

Member Service opening hours:

Monday to Thursday: 08:30 to 15:30
Friday: 09:00 to 15:00

+45 39 27 85 27

Or by email: info@gs1.dk

Peter Alberg Nielsen
GS1Trade Service Consultant
+45 39 16 90 11
Irene Lentz
Customer Consultant
+45 39 16 90 07
Charlotte Nevdal
Head of Member Service
+45 39 16 90 14