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:
Cargo area cover (if equipped)
The cargo area cover is provided for covering the cargo area and to protect its
contents from direct sunlight. This cover is detachable to make room for additional
cargo. ...
Choosing a child restraint system
Choose a child restraint system that is
appropriate for the child’s age and size
(weight and height) in order to provide the
child with proper protection. The child
restraint system should m ...
Types of tires
You should be familiar with type of tires
present on your vehicle.
The factory-fitted tires are all-season tires. ...
