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.
This three-digit number is the width of the tyre in millimeters.
The ratio of the tyre height to the tyre width, measured as a percentage. This tyreʼs height is equal to 55% of its width.
The diameter of the rim, measured in inches.
Indicates the maximum load a tyre can support when fully inflated.
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.
This code appears on reinforced tires that have a higher load capacity than standard tires.
Some light truck tires are available with double load indexes for single and dual tire fitments, e.g. 215 65 R16 106 /102 T.