Gerador GTIN — Crie números globais de produtos

GTIN (Global Trade Item Number) is the umbrella term for GS1 product identifiers. GTIN-12 includes UPC-A, GTIN-13 includes EAN-13, and GTIN-14 includes ITF-14.

GTIN is the modern GS1 term. EAN-13 is now called GTIN-13. They are the same barcode — the name changed, the numbers did not.

Each digit is multiplied by alternating weights of 1 and 3, the products are summed, and the check digit rounds the total up to the next multiple of 10.

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