Question 1

What is an EAN-13 barcode?

Accepted Answer

EAN-13 is a 13-digit barcode standard used worldwide for retail products. The first 2-3 digits are the country/GS1 prefix, followed by the manufacturer and product code, and the 13th digit is a checksum calculated from the other 12.

Question 2

How is the EAN-13 checksum calculated?

Accepted Answer

The checksum is calculated by multiplying digits in odd positions by 1 and even positions by 3, summing them, and subtracting from the next multiple of 10. The tool does this automatically when you enter 12 digits.

Question 3

Are the generated barcodes scannable?

Accepted Answer

Yes. The barcodes are generated strictly to the GS1 EAN-13 specification with correct bar widths, quiet zones and human-readable text. Any standard barcode scanner can read them.