Validate VIN number

Client

Validate VIN number is phrasing common on fleet forms and auction intake. Paste the identification number below for structure and check-digit validation—no build or accident history.

Validation steps

Strip noise characters, count to 17, reject I/O/Q, transliterate allowed letters, sum weighted products mod 11, compare to position nine.

Privacy: parsing runs only in your browser. This page does not query DMV, insurance, or manufacturer databases—only the published mod-11 rule for the ninth character.
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After removing spaces and hyphens, the frame must be exactly 17 characters. Letters I, O, and Q are forbidden everywhere. Position 9 (index 8) is the check symbol: decimal 0–9 or X for remainder ten. Each symbol maps to a numeric value, is multiplied by a fixed weight for its position, products are summed, and sum mod 11 must equal the check symbol’s value (X → 10).

Result

Passes check digit — weighted sum mod 11 is 10; expected X.

  • WMI (positions 1–3): 1HG
  • Attributes (4–8): BH41J
  • Check (9): X
  • Model year code (10): M
  • Plant (11): N
  • Sequential (12–17): 109186

Common use cases

  • Reject obvious typos before warehouse gate scans.
  • Pair with IMEI tools when auditing mixed logistics forms.

Common mistakes to avoid

  • Using non-US VIN rules on import paperwork

    Other regions may use different lengths pre-1981; mismatch is expected.

FAQ

How many characters in a VIN?

Modern North American road-vehicle VINs use exactly 17 characters (1981+ system).

Common search terms

Phrases people search for that match this tool. See the full long-tail keyword index.

  • vin check digit verifier online
  • validate vin number mod 11 free
  • ninth position vin checksum browser
  • iso 3779 vin check digit calculator
  • vehicle identification number check digit locally

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