Free EAN-13 Barcode Generator for 13 Digit Barcodes
Create or validate a 13 digit EAN-13 barcode for retail products. Enter 12 digits to calculate the check digit, or paste all 13 digits to verify and download a print-ready barcode.
Checksum Calculator Helper
- Enter 12 digits, and we will
instantly calculate the correct 13th checksum digit.
- Enter 13 digits, and we will
verify if the checksum is correct and auto-fix it if
necessary.
Preview
GS1 Official Disclaimer
EAN-13 numbers used for retail products should be issued by an authorized organization such as GS1. Generating custom barcode graphics here does not grant legal copyright or registration to those product numbers.
How is the EAN-13 Checksum Calculated?
The final 13th digit of an EAN-13 barcode is a modulo-10 checksum calculated from the preceding 12 digits. The formula operates as follows:
1. Sum all the digits at odd positions (1st, 3rd, 5th, etc.) -> OddSum
2. Sum all the digits at even positions (2nd, 4th, 6th, etc.) and multiply by 3 -> EvenSum * 3
3. Add both values -> TotalSum = OddSum + (EvenSum * 3)
4. Checksum = (10 - (TotalSum Modulo 10)) Modulo 10
Usage in Global Logistics
EAN-13 barcodes are 13 digit barcode formats used globally on physical packages in supermarkets, physical stores, and e-commerce nodes. They allow check-out laser scanners to identify inventory databases instantaneously.
Country Prefixes
The first 3 digits of an EAN-13 barcode represent the GS1 country prefix (identifying the national GS1 organization that issued the code, which is not necessarily where the product was manufactured).
How to get a 13 digit barcode
1. Use a valid product number
For retail products, obtain a legitimate GTIN or EAN number from GS1 or the appropriate issuer for your market before printing packaging.
2. Generate the EAN13 barcode
Enter the first 12 digits to calculate the checksum automatically, or paste all 13 digits to validate an existing EAN13 barcode.
3. Test before publishing
Download the barcode image, print a sample, and scan it with multiple devices before using it on labels, inventory sheets, or product packaging.