How to Read Tire Size From a Sidewall

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You call around, looking for a price on tires, or maybe even brakes. The attendant on the phone asks you for your tire size. You have no idea. All you know about your tires is they are black and round, and rotate when you press the gas. Where do you even find that information?

Here's a straightforward way to find your tire size from the sidewall of your tire:

Look for a number structure like this example: P215/60R16. It will run along the outside face of the sidewall. It may be at the bottom of the tire, so you might need to read it upside down.

The prefix "P" indicates the tire’s service type. P is a passenger rated tire. Other common types are LT for light truck use, T for temporary use as in spare tires, and ST for special trailer use only.

  • The first number, 215, is the width of the tire tread measured in millimeters.

  • The number after the slash, 60, is the profile of the tire. The profile is the height of the tire from the ground to the rim measured as a percentage. In this example, the height of the tire is 60 percent of the width of the tire.

  • The letter that comes next, R, indicates the type of tire construction. R is a radial tire. Another option, although less common, is ZR which indicates the tire is rated for high speed.

  • The last number in the sequence, 16, indicates the rim size for the tire measured in inches.

Historically, there have been other tire constructions used that are no longer commonplace. D indicated diagonal construction, or bias ply, and B was for belted tires. Both constructions are extremely uncommon to see on modern tires.


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Jason

31 years of experience
148 reviews
Jason
31 years of experience
Land Rover Range Rover Sport - Brake Pads Replacement (Front, Rear) - Surprise, Arizona
Needed new brake pads on my Land Rover-and booked through “your mechanic”- this was my second time using this service and I have to say- these guys are awesome- Today, Jason came out to my work place- and completed the work quickly. Thank you!!
Honda Accord - Brake Pads Replacement (Rear) - Phoenix, Arizona
Jason was on time, self motivated, well educated in his craft, and very helpful. I am fully sold on your method of using the home service. Jason helped by creating a safer ride for my wife, saving me time, and saving money for my family. I will be a client forever. Dennis Laycock

Lee

18 years of experience
105 reviews
Lee
18 years of experience
Toyota Camry - Brake Pads Replacement (Rear) - Richmond, Virginia
Lee was professional and knowledgeable. The job did not take long he was a little late but like I said professional because he let know that he was running late. LEE IS AWESOME!!!!!!

Willie

23 years of experience
23 reviews
Willie
23 years of experience
Jeep Compass - Brake Pads Replacement (Front, Rear) - North Hollywood, California
I made an appointment to have my brake rotors/disc replaced. On the day I scheduled my car services- it ended up raining. Willie checked in, moved my appointment, and continued to communicate through out the day until he was able to come work on my car. He took great car to make the repairs ANNNDDD SAVED ME MONEY by only doing what was necessary (only one of the rotors needed replacing). A blessing.

Honorio

18 years of experience
782 reviews
Honorio
18 years of experience
Saturn Vue - Brake Pads Replacement (Front) - Sunnyvale, California
This was our second appointment to service our Honda and Saturn with Honorio and we will continue to do so in the future. We highly recommend Honorio.

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