P Metric

With the P-Metric system, Section Width is measured in millimeters.

To convert millimeters into inches, divide by 25.4. The Aspect Ratio (Section Height divided by Section Width) helps provide more dimensional information about the tire size.

Example:

(1) P = Certain tire type used on light duty vehicles such as passenger cars

(1) P = Certain tire type used on light duty vehicles such as passenger cars
(2) Section Width in millimeters
(3) Aspect Ratio (= section height 7 section width).
(4) R = Radial Construction
(5) Rim diameter in inches

    See also:

    Air filtration system
    Your vehicle’s air conditioning system is equipped with an air filtration system. Replace the air filter element according to the replacement schedule shown in the following table. This schedule s ...

    Alarm system
    The alarm system helps to protect your vehicle and valuables from theft. The horn sounds and the turn signal lights flash if someone attempts to break into your vehicle. The system can be armed a ...

    Load and Speed Rating Descriptions
    The load and speed rating descriptions will appear following the size designation. They provide two important facts about the tire. First, the number designation is its load index. Second, ...