What is a VIN and where do I find it?

A VIN (Vehicle Identification Number) is a unique 17-character code assigned to every motor vehicle. You can find it on the driver-side dashboard (visible through the windshield), the driver-side door jamb sticker, your vehicle registration, insurance documents, or the vehicle title. Use our free decoder above to reveal what each character means.

How do I verify if a VIN is valid?

A valid VIN has exactly 17 characters (letters and numbers, but never I, O, or Q). Position 9 is a check digit calculated using a mathematical formula — our decoder automatically validates this for you. If the check digit doesn't match, the VIN may have a typo or be fraudulent.

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Free VIN Decoder & Lookup

Enter any 17-character Vehicle Identification Number to instantly decode the manufacturer, model year, country of origin, and more.

Decodes VINs from over 600 manufacturers worldwide

VIN Breakdown

WMI (Manufacturer)

VDS (Description)

Check Digit

VIS (Identifier)

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Invalid VIN Format

A VIN must be exactly 17 characters (letters and numbers). Letters I, O, and Q are not used. Check your VIN and try again, or use the CarSight app to scan it with your camera.

Try an Example VIN

What is a VIN Number?

📍 Where to Find It

Look at the driver-side dashboard (visible through the windshield), the door jamb sticker, your registration, insurance card, or vehicle title.

🔢 17 Characters

Each position encodes specific info: positions 1-3 identify the manufacturer, 4-8 describe the vehicle, 9 is a check digit, and 10-17 are the unique ID.

🌍 Universal Standard

VINs follow the ISO 3779 standard used worldwide since 1981. Letters I, O, Q are never used to avoid confusion with numbers 1 and 0.

🔒 Unique Identifier

No two vehicles manufactured within 30 years share the same VIN. It's your vehicle's fingerprint — essential for recalls, history reports, and registration.

Frequently Asked Questions

A VIN (Vehicle Identification Number) is a unique 17-character code assigned to every motor vehicle when it's manufactured. You can find it on the driver-side dashboard visible through the windshield, the sticker on the driver-side door jamb, your vehicle registration, insurance documents, or title. It's like a fingerprint for your car.

Yes! Our VIN decoder is completely free with no signup or download required. Just enter any 17-character VIN above to instantly see the country of origin, manufacturer, model year, assembly plant, and whether the check digit validates. For a deeper analysis of your specific vehicle, try the CarSight app.

A VIN encodes the country of manufacture, manufacturer, vehicle type, body style, engine type, a check digit for fraud prevention, model year, assembly plant, and a unique production sequence number. The first three characters are the World Manufacturer Identifier (WMI), 4-8 are the Vehicle Descriptor Section (VDS), and 10-17 are the Vehicle Identifier Section (VIS).

A valid VIN has exactly 17 characters using letters and numbers (but never I, O, or Q). Position 9 is a check digit calculated using a weighted formula — our decoder validates this automatically and shows you whether the VIN passes. If the check digit fails, the VIN may contain a typo or could be fraudulent.

The 17-character VIN format became the global standard in 1981 following ISO 3779. Vehicles manufactured before 1981 may have shorter or differently formatted identification numbers. All modern vehicles sold anywhere in the world use the standardized 17-character format, making it universal for identification, registration, and recall tracking.