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VIN Validator

Check whether a VIN is valid from its check digit.

How to use

  1. Enter your values in the fields above.
  2. Press Calculate to see your result instantly.
  3. Use the Share button to copy a link to your result.

About this calculator

This tool validates a 17-character Vehicle Identification Number (VIN) by recalculating its check digit (position 9) according to the ISO 3779 / SAE J853 algorithm: each character is converted to a numeric value and multiplied by a position-based weight, and the weighted sum modulo 11 must match the check digit ('X' represents 10).

Used mainly on North American-market vehicles, this check catches typos when a VIN is copied from a title, registration, or window sticker — before ordering parts, running a vehicle history report, or registering a car. Enter the 17-character VIN to see whether the check digit is valid.

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