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:

    Charge warning light
    If this light illuminates when the engine is running, it may indicate that the charging system is not working properly. If the light illuminates while driving or does not turn off after the engin ...

    Displaying satellite radio ID of tuner
    When you activate satellite radio, you should have your satellite radio tuner ID ready because each tuner is identified by its unique satellite radio tuner ID. The satellite radio ID will be ne ...

    Trailer lights
    Direct splicing or other improper connection of trailer lights may damage your vehicle’s electrical system and cause a malfunction of your vehicle’s lighting system. Connection of trailer ...