Toyota Prius c 2014 Owner's Manual page 514

6-1. Specifications
Tire size
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Typical tire size information
The illustration indicates typical tire size.
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Tire dimensions
512
Tire use
(P = Passenger car,
T = Temporary use)
Section width (millimeters)
Aspect ratio
(tire height to section width)
Tire construction code
(R = Radial, D = Diagonal)
Wheel diameter (inches)
Load index (2 digits or 3 digits)
Speed symbol
(alphabet with one letter)
Section width
Tire height
Wheel diameter