Auto Tools
Auto Tools
Free vehicle verification and calculation tools including VIN decoder, recall check, tire calculators, and more.
Free tools to help you verify vehicles, check recalls, and make informed decisions about automotive purchases and maintenance.
VIN Decoder
Decode any VIN to get vehicle specifications
Recall Check
Check for open recalls on your vehicle
Tire Size Calculator
Calculate tire specifications
Tire Size Comparison
Compare two tire sizes side by side
Speedometer Error Calculator
Calculate speedometer error with new tires
Wheel Offset Calculator
Calculate wheel fitment changes
Towing Capacity Calculator
Calculate your vehicle's towing limits
Used Car Inspection Checklist
What to check when buying a used car