The diameter of your vehicle’s rims can vary depending on its model year, trim level, transmission type, and other factors. If you’re not sure what your tire size is, you can find it in your owner’s manual or on the sidewalls of the tires.
To know your rim diameter, you’ll want to note the numbers directly following the R because this will tell you your rims’ diameter in inches. In this case, the diameter of both your front and rear rims would be 20 inches.