What Do Tire Numbers Mean?

Tire Closeup Focus on Numbers

If you’ve ever checked your tires or if you’ve had to order new ones from your local Pittsburgh tire shop, you’ve more than likely seen the combination of numbers and letters on the sidewall of them. So, you’re probably wondering, “What do tire numbers mean?” This code indicates the size and type of tire it is, and its particular performance purpose. If you’re in need of new tires and need to determine which ones to get, or if you’re simply wondering what the numbers on tires mean, let Stuckey Automotive teach you.


Determining Tire Number Meanings

A tire’s code uses a series of letters and numbers in order to inform you or your Huntingdon service center of the size, load index, speed rating, and type of tire your vehicle needs for maximum performance. Take this code for example:

Example: P215/65R15 95H

While it may seem like gibberish, each section of code represents a piece of information to correctly identify the type of tire it is.

Decoding “P”

The “P” stands for “P-Metric tire,” meaning that it is used for passenger vehicles. If your tires read “LT,” this stands for “light truck,” and the tire is intended for light-weight pickup trucks. If the tire does not have a letter preceding the code, it is a European-style tire, or Euro-Metric tire, which has different load capacities.

Decoding “215”

Following the “P” is the “215” number, which stands for tire width in millimeters from sidewall to sidewall. So in our example, the width of this tire is 215 millimeters.

Decoding “65”

After the forward slash comes the aspect ratio code, indicated in our example by “65.” A tire’s ratio is the height of the tire’s cross-section to its width, so in our example, this tire has an aspect ratio where its height is equal to 65% of the tire’s width. The bigger the aspect ratio, the bigger the sidewalls will be.

Decoding “R”

The “R” indicates the tire’s construction, with “R” representing that it’s a radial.

Decoding “15”

“15” indicates the wheel size from one end to the other, which informs us of what tire can fit on this particular wheel. This code tells us that this tire is meant for a 15-inch wheel.

Decoding “95H”

At the end of the code is “95H,” which is the load index and speed rating for the tire. The load index (“95” in this instance) indicates how much weight the tire can support when it’s properly inflated and can range from 75-105 for passenger vehicles. “H” represents the speed rating, which is how fast the tire can safely go based on its load capacity. This rating is ranked by various letters. In our example, a tire with an “H” rating can reach a maximum speed of 130 mph.

How to Check Tire Pressure

Regardless of the size of your car’s tires, one of the best ways to keep them in good health on Pittsburgh roads is to keep them properly inflated. Checking your vehicle’s tire pressure is quick and easy, as nowadays, most new vehicles have a Tire Pressure Monitoring System (TPMS). If your vehicle’s tires are over- or under-inflated, you’ll receive a notification from the TPMS. You can take your vehicle to a gas station to top off the air in the tires, or we’ll do it for you when you come in for a service visit! 

Turn to Stuckey Automotive for All Your Maintenance Needs

If you are in need of new tires or brakes, or are ready to come in for your regularly scheduled oil change, turn to Stuckey Automotive for all of your maintenance and parts needs! Complete this secure schedule service form to make an appointment in Huntingdon. Complete this form by entering in your VIN and basic contact information, so our service technicians can best service your . If you have any questions, contact us online.

More from Stuckey Automotive

  • Stuckey Ford Hosts Volunteer Fire Departments for Electric Vehicle Safety Training

    On Thursday, March 28th, Stuckey Ford will host eight local volunteer fire departments for on-site electric vehicle training.  Firefighters from Geeseytown Community Fire Co., Phoenix Fire Dept., Duncansville Fire Co., Lakemont Fire Dept., Williamsburg Fire Dept., Excelsior Fire Dept. (Bellwood), Allegheny Township Fire Dept., and Logan Township United Fire Dept. will examine select Ford electric…

  • Stuckey Automotive Announces Commitment to Purchase Delaney Nissan of State College Dealership

    DUNCANSVILLE, PA (February 6th, 2024) – Stuckey Automotive, one of Central PA’s fastest growing automotive groups, announced today its intention to purchase Delaney Nissan of State College located at 3280 West College Avenue in State College, PA., 16801.  Delaney Nissan of State College, owned by the Delaney Automotive Group, will resume all operations until the…

  • Stuckey CDJR Announces New Location in Huntingdon, PA!

    DUNCANSVILLE, PA (February 21, 2024) – Stuckey Automotive, one of Central PA’s fastest growing automotive groups, announced today its Stuckey Chrysler Dodge Jeep Ram dealership has officially relocated its sales operation from its former home on 288 Water Street, Cassville, PA., 16623 to 10426 Fairgrounds Road, Huntingdon, PA., 16652, effective February 21, 2024.  The dealership’s…

Contact Us

Main (814) 695-9862 Sales (814) 695-9862
10426 Fairgrounds Rd
Huntingdon, PA 16652
Stuckey Automotive 40.4788436, -78.0347775.