VIN Decoder
Find Your Tire Size by VIN Number
Instantly discover your vehicle's original equipment (OEM) tire size using your VIN number or by selecting your vehicle's year, make, and model. Get accurate tire specifications including load index and speed rating in seconds.
How to Find Tire Size Using VIN
Your Vehicle Identification Number (VIN) contains encoded information about your vehicle, including the original tire specifications recommended by the manufacturer. Using a VIN decoder to find tire size ensures you get the exact OEM specifications without having to check your current tires or door jamb sticker.
What is a VIN Number?
A VIN (Vehicle Identification Number) is a unique 17-character code assigned to every vehicle manufactured since 1981. It contains information about the manufacturer, model year, plant location, and vehicle specifications.
Where to Find Your VIN
- • Dashboard (driver side, visible through windshield)
- • Driver's door jamb sticker
- • Vehicle registration documents
- • Insurance card
- • Owner's manual
VIN Number Check Online
Checking your VIN number online is the most reliable way to find your vehicle's factory specifications, including tire size, wheel offset, and trim level. Our free VIN decoder tool connects directly to the NHTSA (National Highway Traffic Safety Administration) database to verify your vehicle's identity.
1. Locate VIN
Find the 17-character code on your dashboard or door jamb.
2. Enter Code
Type it into our decoder above. No registration required.
3. Get Report
Instantly see OEM tire size, load index, and speed rating.
VIN Number Location
The Vehicle Identification Number can be found in several places on your car. The two most common locations are physical plates attached to the vehicle body.
ADashboard (Windshield)
Stand outside the vehicle on the driver's side and look at the corner of the dashboard where it meets the windshield. You will see a small metal plate with the code.
BDriver's Door Jamb
Open the driver's side door and look at the door pillar (B-pillar). You will find a sticker that also lists tire pressure information and the VIN.
VIN Number Example Used
A VIN is not just a random string of characters; every digit tells a story. Here is a breakdown of a 2024 Toyota Camry VIN example to help you understand what you are reading.
VIN Decoder Tool
Method 1: Enter VIN Number
Method 2: Select Your Vehicle
Understanding Your VIN Results
How to Read Your Tire Size
A tire size like "235/65R17" contains critical information: 235 is the width in millimeters, 65 is the aspect ratio (sidewall height as a percentage of width), R indicates radial construction, and 17 is the wheel diameter in inches. Understanding this format helps you identify compatible replacement tires.
What is Load Index?
The load index is a numerical code indicating the maximum weight each tire can support when properly inflated. For example, a load index of 95 means each tire can carry up to 1,521 lbs. Always match or exceed your OEM load index when replacing tires.
What is Speed Rating?
Speed rating (like H, V, or W) indicates the maximum sustained speed the tire can handle. H = 130 mph, V = 149 mph, W = 168 mph. Choose a speed rating equal to or higher than your OEM specification for safety.
Why Use VIN for Tire Size?
More Accurate Than Guessing
VIN lookup provides the exact OEM specifications, eliminating guesswork from reading worn sidewalls or faded door stickers.
Matches OEM Specifications
Get the same tire size the manufacturer installed at the factory, ensuring optimal performance, safety, and fuel economy.
Ensures Safety and Performance
Using OEM tire sizes maintains proper speedometer calibration, braking distances, and vehicle handling characteristics.
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Frequently Asked Questions
Can I check tire size by VIN for free?+
Yes! Our VIN decoder tool is completely free to use. While full VIN decoding (17-character lookup) requires API integration, you can use our Year/Make/Model selector at no cost to find your OEM tire specifications instantly.
Is VIN tire size lookup accurate?+
VIN lookup provides the original equipment (OEM) tire size as specified by the manufacturer. However, previous owners may have changed tire sizes. Always verify against your door jamb sticker or current tires for the most accurate information.
What if my VIN doesn't show results?+
If VIN lookup fails, use our Year/Make/Model selector instead. You can also check your vehicle's door jamb sticker (driver's side door), owner's manual, or existing tire sidewalls for the size information.
Can I use a different tire size than VIN shows?+
Yes, you can use alternative tire sizes within ±3% of the original diameter. Use our tire size comparison tool to verify that your new size won't affect speedometer accuracy, clearance, or vehicle performance. Always maintain or exceed the OEM load index and speed rating.