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

(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:

    Tire pressures and wear
    Maintaining the correct tire pressures helps to maximize the tires’ service lives and is essential for good running performance. Check and, if necessary, adjust the pressure of each tire (includin ...

    Recommended cold tire inflation pressure
    For the recommended cold tire inflation pressure for your vehicle’s tires, refer to “Tires” F12-8. ...

    Towing
    If towing is necessary, it is best done by your SUBARU dealer or a commercial towing service. Observe the following procedures for safety. Never tow AWD models (both AT and MT) with the front w ...