How to Read Tire Dimensions: Decode Every Marking

How to Read Tire Dimensions: Decode Every Marking

To read tire dimensions, locate the tire size string on the sidewall or vehicle placard, then decode its service type, width, aspect ratio, construction, wheel diameter, load index, and speed rating in that order. For example, P215/65R15 95H describes a passenger tire that is 215 mm wide, has a 65% aspect ratio, fits a 15-inch […]