How many characters does a Mercosul plate have, and how is it formed?

Seven characters in the LLLNLNN format: three letters, one digit, one letter and two digits, as in ABC1D23. It's the standard adopted in Brazil since 2018.

Is RENAVAM the same thing as the license plate?

No. The plate is the vehicle's visual identifier, attached to it. RENAVAM is the vehicle's registration number with Denatran, with 11 digits, used to look up debts, fines and transfers. Both appear together on the CRLV, but they are different fields.

How does the tool calculate the RENAVAM check digit?

Using Modulo 11, with weights 3, 2, 9, 8, 7, 6, 5, 4, 3 and 2 applied to the first 10 digits. The check digit is 11 minus the remainder of the sum divided by 11, and becomes 0 when that remainder is 0 or 1.

Do the generated plates and RENAVAM numbers correspond to a real vehicle?

No. The tool doesn't query any vehicle database. The results are drawn at random and only follow the format rules (and, for RENAVAM, the check digit rule), so they might coincidentally match a real vehicle. Use them for testing only.

Can I look up my own vehicle's plate or RENAVAM here?

No. The validator on this page only checks whether the RENAVAM check digit is correct, without looking up any real vehicle. To look up vehicle data, use your state's official Detran channels or the Carteira Digital de Trânsito app.

Brazilian Mercosul License Plate and RENAVAM Generator

Generate Brazilian Mercosul-standard license plates (LLLNLNN) and valid RENAVAM numbers with a check digit, for testing and development. Both generators and a RENAVAM validator are on this same page.

Brazilian License Plate (Mercosul) Generator

Draws license plates in the standard adopted in Brazil since 2018, in the LLLNLNN format (three letters, one digit, one letter, two digits).

Result	Action	Status
SLT6F22		Not copied

RENAVAM Generator

Draws 11-digit RENAVAM numbers with the check digit calculated using Modulo 11.

Result	Action	Status
38644573810		Not copied

Validate a RENAVAM

Paste an 11-digit RENAVAM number to check whether its check digit is correct.

Validating a License plate in a form or extracting it from a log?See the License plate regex

How to use the Brazilian License Plate (Mercosul) and RENAVAM Generator?

Choose the quantity

In each section, select 1 to 10 results: Mercosul-standard plates or RENAVAM numbers.

Generate the results

The plate is drawn in the LLLNLNN format. The RENAVAM has its first 10 digits drawn at random, with the check digit calculated using Modulo 11.

Copy when you need it

Copy one result at a time or the whole list, one item per line, in either section.

About the Mercosul License Plate and RENAVAM

What is the Mercosul-standard license plate?

It's the license plate model adopted in Brazil starting in 2018 (Resolução CONTRAN nº 780/2019), with seven characters in the LLLNLNN format, for example ABC1D23. It replaced the old LLL-NNNN standard and became mandatory nationwide from January 2020.

Does the Mercosul plate have a check digit?

No. Unlike CPF, PIS/PASEP or RENAVAM, the resolution that created the Mercosul standard describes the character combination as random, distributed and controlled by the traffic authority. There is no published check-digit algorithm to verify whether a plate is valid. That's why this generator draws each position (letter or digit) independently, with no verification calculation.

What is RENAVAM?

It's the Registro Nacional de Veículos Automotores (National Registry of Motor Vehicles), the number that identifies a vehicle's registration with Denatran. It's different from the license plate, which is the vehicle's visual identifier. It has 11 digits, appears on the CRLV (vehicle registration document), and is used to look up fines, debts and transfers.

How is the RENAVAM check digit calculated?

Each of the first 10 digits is multiplied by its weight, in the order 3, 2, 9, 8, 7, 6, 5, 4, 3 and 2. The results are added up and divided by 11: the check digit is 11 minus the remainder. If the remainder is 0 or 1, the check digit is 0. This rule comes from Portaria DENATRAN nº 27/2013, which also applies to the old 9-digit codes, padded with two leading zeros.

Frequently Asked Questions about the License Plate (Mercosul) and RENAVAM Generator

Answers about both formats and what each generated result represents.