VIN Validator
Use this free VIN Validator to quickly get accurate results in seconds, free and instantly offline with no signup required ever, trusted by professionals in Austin, Chicago, Miami, Denver, Seattle, and New York for reliable daily use without accounts, subscriptions, limits, or delays on any device for everyday personal and business workflows daily.
Validate a 17-character Vehicle Identification Number (VIN) using the standard check digit instantly in your browser. Free online VIN validator.
Calculator Inputs
About VIN Validator
Use this free VIN Validator to quickly get accurate results in seconds, free and instantly offline with no signup required ever, trusted by professionals in Austin, Chicago, Miami, Denver, Seattle, and New York for reliable daily use without accounts, subscriptions, limits, or delays on any device for everyday personal and business workflows daily.
17 chars no I/O/Q. 9th check from other 16 via NA weights. First char hints country 1/4/5 US, 2 Canada, J Japan.
Math consistency only, not title history — run Carfax too. Local.
Fail: Shows expected check. Retype O/0, I/1 suspects.
Year: 10th char code, repeats 30yr — verify with model.
Limits: No recall/mileage lookup.
Check-digit math: The 9th character derives from the other 16 via weighted sums — fakes fail here most. Austin buyers checking $18,000 Hondas spot a wrong digit before deposits on 09/22/2026.
Country decoding: First characters map origins — 1, 4, 5 United States, 2 Canada, J Japan. Seattle shippers verifying $40,000 imports confirm manifests match stamps.
Year codes: The 10th character encodes model year on a 30-year cycle — verify against the advertised year. Denver mechanics decoding $800 repairs order exact-fit parts.
Forbidden letters: I, O, Q never appear, avoiding 1 and 0 confusion. Retype suspects when validation flags them specifically.
History limits: Math consistency never proves clean title — pair with Carfax and physical inspection. Chicago dealers validating $25,000 trade-ins run both before offers.
Where it is used
Buyers checking Craigslist Hondas, dealers validating trade-ins, insurers confirming policy VINs, mechanics decoding year, and DMV paperwork catching typos Austin buyers check $18,000 Craigslist Hondas, Chicago dealers validate $25,000 trade-ins, Miami insurers bind $3,000 policies, Denver mechanics decode $800 repairs, Seattle shippers verify $40,000 imports, and New York DMVs catch $200 typo rejections.
How to use the VIN Validator
- VIN (17 characters) — enter the value (e.g. e.g. 1HGCM82633A004352).
- Calculate — press the Calculate button to see the result instantly above.
Formula
upper strip → 17 [A-HJ-NPR-Z0-9] → transliterate → × weights 8-2 → mod11 → 10=X vs pos9.
Examples
Honda Accord
Typo VIN
Short VIN
Frequently Asked Questions
- What characters are not allowed in a VIN?
- The letters I, O, and Q are never used in VINs to avoid confusion with 1 and 0.
- Does the check digit validation guarantee the car is genuine?
- No. It only proves the number is mathematically consistent. Always verify against the vehicle and its documents separately.
- O versus 0 in VINs?
- Letter O never appears — any O is really a zero. Same for I versus 1. Retype suspects when flagged.
- Year code repeats?
- Yes, on 30-year cycles, so verify against the advertised model year and door sticker together.
- Valid VIN, salvage title?
- Possible — math checks structure only. Title brands live in DMV and history databases, not the digits.
- Stored anywhere?
- No. Validation runs locally in your browser. No VIN is uploaded or stored.