Finally. A massive tire size chart with both metric and inch tire sizes listed to easily compare every tire size in one spot. Here are two tire size charts that list every tire by wheel size or by diameter to make your search as simple as possible. Each metric tire measurement shows both the metric tire size and the inch equivalent.
The following is an example to help to decode a tire size like 255/60R17. The 255 is the tire width in millimeters, measured from the bottom of the bead to the bottom of the bead, the 60 is the sidewall aspect ratio (the tire width factor), the ratio of sidewall height to tire width at the tread (indicating that the sidewall height is 70% of the tread width), and the 17 is the wheel rim diameter in inches.
For the measurements of your Original Equipment (OE) tire, or the current tire on your vehicle, simply enter the size. Our calculator will provide you with the Sidewall Height, Section Width, Overall Diameter, Circumference, and Estimated Revolutions Per Mile.
Tire size calculator compares diameter, width, circumference and speedometer differences for any two tire sizes. Supports tire sizes in metric and inches.
Tire Diameter Chart information from Discount Part Center
Our tire size calculator uses inch measurements by default, but you can switch to metric system (cm) if you want. Tire size comparison calculator instantly shows the difference between the tires and displays it in the table.
Goodyear has a large tire catalog complete with all-season tires, winter tires, sport performance tires, and more. Find your tire size within the chart below to see a selection that's right for you. If you're looking for a quick and easy way to find tires that fit, use the Goodyear Tire finder instead.
SimpleTire.com offers a easy to use tire size calculator to calculate differences in speed, rating and fit based on a change to wheel or tire size. Try our tire calculator to see how changing your tire or wheel size will impact your vehicle performance and handling.