HOW TO READ TIRE SIZE
The size of your tire will be displayed on the sidewall of the tires currently mounted on your vehicle, your vehicle owner’s manual, and/or even the inner door panel of your vehicle. You tire size will be a series of seven to eight digits that will appear something like: “225 45 R17”. The first three digit number in this example (225) represents your width, the second series of numbers (45) represents your tires profile, and the last two series of numbers (17) represent your wheel size/diameter.