Tire Number Meanings
So, what do the numbers on tires mean? The numbers and letters are essentially a code that lets you know the size, speed rating, load index, and type of tires your vehicle needs to maintain optimal performance. Let’s take a closer look at tire number meanings by breaking down the following code:
P215/65R15 95H
Deciphering "P"
What do tire numbers mean? The P in the above code means P-Metric tire, which denotes that it is intended for passenger vehicles. If your code starts with LT, the tires are designed for lightweight pickups. If there is no letter at the start of the code, you have a European-style tire, which typically has different load capacities than American tires.
Deciphering "215"
215 stands for the tire width measured in millimeters from one sidewall to the other. This tire number meaning in the above example represents a tire width of 215 millimeters.
Deciphering "65"
Next is the ratio code, which is 65 in our example. Tire ratio is the height of the tire’s cross-section in relation to its width. This tire has an aspect ratio in which its height is equal to 65% of its width. The higher the number, the larger the sidewalls.
Deciphering "R"
This letter is code for the construction of the tire. R means it is a radial tire.
Deciphering "15"
The next number tells you the size of your wheel from end to end, which, in turn, tells you the size of the tire that can fit it. In the example, the tire can fit a 15-inch wheel.
Deciphering "95H"
Closing out the code is the number/letter combination 95H. This is the load index and speed rating of your tire. Load index–in this case, 95– indicates the amount of weight the tire can support when properly inflated; this number ranges from 75 to 105 for passenger vehicles. The speed rating for this tire–H–is how fast the tire can safely travel based on its load capacity; H means a tire is rated for a 130-mph top speed.
How to Check Tire Pressure
Keeping your tires properly inflated is the single best thing you can do to get the longest, most dependable life out of your tires. To do that, you’ll need to check the pressure in your tires. Most modern vehicles have tire pressure monitoring systems that keep tabs on tire pressure for you, sending you a dashboard alert when tires are underinflated or overinflated. If your TPMS warning light illuminates, you’ll likely need to fill your tires with air at a gas station or bring your vehicle into our service center, and we can take care of it for you.
Schedule Tire Maintenance in Salt Lake City Today
What do the numbers on tires mean? Now that you can answer this question, you may have realized you’re due for new tires or tire service. Schedule an appointment online or contact us today. And be sure to explore our buy now, pay later program, which helps service and parts costs fit more comfortably within your budget.