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
(2) Section Width in millimeters
(3) Aspect Ratio (= section height 7 section width).
(4) R = Radial Construction
(5) Rim diameter in inches
See also:
Acc
In this position the electrical accessories (audio, accessory power outlet, etc.) can be used. ...
The Inside
The Forester's dash sits higher against the windshield than you'll find in
many SUVs, which gives the cabin a more carlike feel and a lower perceived
driving position. Thanks to the large side and ...
Infants or small children
Use a child restraint system that is suitable for your vehicle. Refer to “Child
restraint systems” F1-25. ...
