Size

Always check the specs of your car for the exact size. You can usually find the information you need in the manual that comes from the manufacturer. Also you can refer to the sidewall of one of your current tires.

You’ll see three numbers following “P” indicate the tire’s width in millimeters. Next, you’ll see a slash, after which, you’ll see two more numbers that tell you the percentage of the tire’s height compared to its width. The next letter, “R,” identifies the radial construction. The two numbers after it represent the diameter of the rim in inches.