2018 Toyota Prius Prime Tire Size

The original tire size for your 2018 Toyota Prius Prime is listed below. Tap on the box to view a color-coded explanation of the best Toyota Prius Prime tire size.

Trim Options:

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P195/65R15 89S

Simplified Size:  195-65-15

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Toyota Prius Prime is P195/65R15 89S.  A color-coded explanation of the 2018 Toyota Prius Prime's tire size is shown below.

P

This letter denotes the intended use of the tire.

PPassenger Vehicle
LTLight Truck
CCommercial Vehicle
195

This number indicates that your tire has a width of 195 millimeters.

15

The tire size was designed to fit rims or wheels that are 15 inches in diameter.

89

This tire has a load index of 89, which means it's capable of carrying a load of 1276 pounds (580 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

65

This number means that your tire has an aspect ratio of 65%.  In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 65% of the width.  In this case, the sidewall height works out to be 126 millimeters.

R

This letter denotes how your tire was constructed.  Radial is the standard construction method for about 99% of all tires sold today.

RRadial
BBias Belt
DDiagonal
S

This tire has a speed rating of S, which means 111 mph (180 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.