What Do Tire Numbers Mean?

When you need to get new tires, or if you’ve simply checked your vehicle’s tires for any wear and tear, then you are likely aware that tires are categorized with different combinations of numbers and letters. So, this may have you wondering, “What do the numbers on tires mean?” Well, the code of numbers and letters lets you know the size and type of tire it is, as well as its specific purpose. Learn more about tire number meanings below, and when you think you need new tires or want to have a professional check if your tires are in need of replacement, come to Nyle Maxwell Chrysler Dodge Jeep Ram in Austin. Schedule a service appointment with us today!

Decoding a Tire Number Meaning

The code on a tire is made up of a series of numbers and letters that help to inform you of the size, speed rating, load index, and type of tire your vehicle needs. Take this code below, for example:

P215/65R15 95H

Obviously, it may seem like a bunch of random letters and numbers if you don’t understand the meaning, but let’s break down what each of these codes is saying.

First, the “P” at the beginning stands for “P-Metric tire,” meaning that it is used for passenger vehicles. Tires that begin with “LT” are for light-weight pickup trucks, with the “LT” standing for “light truck.” For tires that don’t start with any letter before the code, these are European-style tires, also known as Euro-Metric tires, which have different load capacities.

After the “P” in our code, we have the number “215”, which designated the tire width in millimeters from sidewall to sidewall.

Following this number is the aspect ratio code, which is “65” in this scenario. A tire’s ratio code tells you the height of the tire’s cross-section to its width. So, with the example above of “65,” the tire has an aspect ratio where its height is equal to 65% of its width. Tires with larger aspect ratio numbers have larger sidewalls.

Next up, we have the “R” in the code, which indicates the tire’s construction. The “R” here denotes that the tire is radial. After that, we have the number “15,” which indicates the wheel’s size from one end to the other. This is important so that you get the right sized tire for your vehicle’s wheel.

Finally, at the end of our example code we have “95H,” which denotes the load index and speed rating for a tire. The “95” is the load index, which indicates how much weight the tire is able to suppoer when properly inflated. Typically, for passenger vehicles, this number ranges between 75 and 105. The “H” here represents the tire’s speed rating, which tells you just how fast the tire can safely go based on its load capacity. This rating is ranked from A-Z, and tires with an “H” rating can hit a maximum speed of up to 130 mph.

Find New Tires at Nyle Maxwell Chrysler Dodge Jeep Ram in Austin!

If you’re searching for a service center to help maintain your vehicle around Cedar Park or Round Rock, then come to Nyle Maxwell Chrysler Dodge Jeep Ram! Our service center is made up of a handful of knowledgeable car experts who can help decode the tire number meaning for your vehicle, and get your vehicle up and running at 100%! We can help you figure out all tire-related information including TPMS. Think you need new tires? Contact us and be sure to check out our current service coupons to save some money on your scheduled maintenance.

Related Service Posts from Nyle Maxwell Chrysler Dodge Jeep Ram

  • Why Is My Car Overheating?

    A car can overheat for a handful of reasons, including a blockage in hoses or perhaps most commonly, a leak in your vehicle’s cooling system. Each and every car is supposed to stay between a healthy temperature that’s typically between 195 and 200 degrees Fahrenheit. If you turn on your car one day and see…

  • How Often Should You Change Your Oil?

    Schedule Oil Change Oil Change Service Offers Knowing how often you should change your oil is an important part of vehicle ownership, but the answer isn’t always quite as clear-cut as you might like. In a nutshell, you should change your oil at recommended service intervals, when it gets low, or when it gets dirty….

Nyle Maxwell Chrysler Dodge Jeep Ram 30.46983, -97.7881972.