Valid Mercosul plate
- Input
- ABC1D23
- Expected output
- formato Mercosul (LLLNLNN)
Letters at positions 1-3 and 5, digits at positions 4, 6 and 7, 7 characters in total, no hyphen.
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Mercosul plate format
The Brazilian Mercosul plate follows the LLLNLNN sequence, three letters, one digit, another letter, then two more digits, and is recognized mainly by the letter in the 5th position, where the old standard had a digit. Adoption began in 2018 and is gradual: a vehicle only gets the new plate when it needs a plate change for some reason (sale, transfer or reissue), there is no mandatory mass swap.
Letters at positions 1-3 and 5, digits at positions 4, 6 and 7, 7 characters in total, no hyphen.
The letter sits at the 6th position, not the 5th, so it matches neither LLLNLNN nor the legacy pattern (which would have 4 digits in a row at positions 4 to 7).
Each click draws a new combination within the LLLNLNN structure; MCV7B31 is just a sample output and does not correspond to any real vehicle.
No. It is a synthetic alphanumeric combination, generated locally, that follows the correct format but does not correspond to any registered vehicle. The tool never queries DETRAN or any real database.
Because CONTRAN's technical specification defines that position as a letter to expand the possible combinations, avoiding exhaustion of the old standard (which only had digits there).
No. Each member country adapted the Mercosul standard to its own previous plate system; Brazil kept the 7-character LLLNLNN format, different from the combinations used by its neighbors.
Use the license plate generator above, in Generate mode with the Mercosul standard selected, each click produces a synthetic combination that follows this structure exactly.
The plate is generated and validated locally in your browser. Analytics receives only action, status and standard, never the plate itself.