The best 18 inch tires at the right price

Compare a variety of top-notch 18 inch tires from Firestone Complete Auto Care. From versatile all-season tires to high-performance summer tires, tough winter tires, and even ones that help maintain your car's fuel efficiency, you'll have no problem finding 18 inch tires that you can trust will fit your car, and your budget, at your local Firestone Complete Auto Care. All 18 inch tires are sorted by tire width, height, and diameter. Select the correct size for your vehicle below to get your instant online quote!

What's My 18 Inch Tire Width & Height?

To find your vehicle's tire width (or cross section), check the vehicle's tire information placard on the inside of the driver's side door. You can also find its width by checking the sidewalls of your current tires. There, you'll see a series of numbers and symbols similar to: P215/60 R17. The width of your tires will be the first number in the series and it is measured in millimeters (mm). In this example, the tire's width would be 215.

How to Find the Height of 18 Inch Tires

To find your vehicle's tire height (or aspect ratio), check the placard on the inside of your driver's side door or check the sidewalls of your current set of tires. There, you'll see a series of numbers and symbols similar to: P215/60 R17. The number directly after the / refers to the height of your tires. In this example, the height of the tires would be 60.