How do I find my tire size?

You can find your tyre size on the sidewall of your current tyre or by checking your ownerʼs manual. Some vehicles will also display the tyre size in the door jamb or glovebox.

What the numbers mean

 
  • Width

    This three-digit number is the width of the tyre in millimeters.

  • Height

    The ratio of the tyre height to the tyre width, measured as a percentage. This tyreʼs height is equal to 55% of its width.

  • Rim

    The diameter of the rim, measured in inches.

  • Load index

    Indicates the maximum load a tyre can support when fully inflated.

  • Speed rating

    Indicates the maximum speed at which a tyre is certified for use. The speed rating H indicates that this tyre can be used on vehicles with a maximum speed of 130 mph or lower.

 

Other codes you may come across

XL

This code appears on reinforced tires that have a higher load capacity than standard tires.

Double load indexes

Some light truck tires are available with double load indexes for single and dual tire fitments, e.g. 215 65 R16 106 /102 T.