How do I find my tire size?

How do I find my tire size?

The size of a tire is printed onto the side of the tire – on the area known as the sidewall. When looking for the size, you will see that it is made up of a series of numbers and letters. In the above example, each section breaks down as follows:

 

205 - Width of the tire in millimetres
55 - Height of the tire sidewall as a percentage of the width. In this case 55%. Also known as the aspect ratio.
R16 - The diameter of the tire's inner rim in inches
91 - Load Rating of the Tire.
V - Speed Rating. Indicates the maximum speed for the tire when at full load.

You can also use the vehicle registration lookup tool on the Blackcircles.com homepage. This checks the data held by the DVLA to find out what tire size is appropriate for your vehicle.

When using this tool, we recommend that you double check the size provided against what you currently have fitted to your vehicle as multiple sizes may be recommended dependent on the age and model of your vehicle.