For car owners, understanding how to read tire sizes is crucial for vehicle performance, fuel efficiency, and safety. To read tire sizes, scan the tire's side to find a series of numbers and letters. The first letter indicates the type of vehicle the tire is designed for, with "P" representing passenger vehicles, "LT" stands for light trucks, and "T" representing temporary or spare tires.
The three-digit number following the first letter represents the tire's width in millimeters, and the next two-digit number is the aspect ratio—the tire's height-to-width ratio.