What Do Tire Numbers Mean?

rack of tires
 

Have you ever looked at the numbers and letters on the sides of your tires? What do these tire numbers mean? If you know what the numbers on tires mean, you’ll know how to properly inflate your tires when they are low, and what size to order when you need to replace them. So, you can see why deciphering the tire numbers’ meaning is important. After all, no one wants to find themselves stranded somewhere in the Port Lavaca area with a flat tire.

What Do the Numbers on Tires Mean?

There are two main types of numbers on tires: size and air pressure. Each type is formatted a little differently. Our friendly Service Department in Aransas Pass would be happy to help you understand these number. In the meantime, let’s go into detail about what the numbers on tires mean in each case.

Tire Number Meaning: Size

The numbers on tires that indicate size are usually the largest. They’re usually formatted like “P235/75R15”. Here’s what those numbers on your tires mean:

  • Letter at beginning
    • P – Passenger vehicle
    • T – Temporary spare
    • LT – Light truck
    • ST – Special trailer service
  • Number before the “/” – This is the section width of the tire in millimeters.
  • Number right after the “/” – This is the sidewall aspect ratio (sidewall height from rim to tread)
  • Letter after the sidewall aspect ratio – indicates internal construction of the tire
    • R – Radial
    • D – Diagonal or bias ply
    • B – Belted
  • Number after the internal construction letter – rim size in inches
tire

Tire Number Meaning: PSI

The second main type of numbers on your tires have to do with air pressure, and are followed by “PSI”. What do tire numbers mean when they’re followed by “PSI”? You’ll want to know the answer to that the next time you have to pull in to a Kingsville gas station to inflate your tire. “PSI” stands for “Pounds per Square Inch” and refers to air pressure. When airing up your tire, make sure not to inflate it past this number.

Let the Tire Experts at Allen Samuels CDJR Aransas Pass Help

Now that you know what the numbers on tires mean, you might want to check out some of our other helpful tips and tricks. And if you have any problems with your tires, let the knowledgeable tire technicians at Allen Samuels CDJR Aransas Pass help. You can even schedule your appointment online. We’re conveniently located near Corpus Christi, so drop by or contact us today!

More from Allen Samuels CDJR Aransas Pass

  • 2021 Jeep Wrangler Configurations

      Everyone likes to have options. Our Corpus Christi customers sure do. Fortunately, the Jeep Wrangler provides options in spades, with no fewer than twelve Wrangler trim levels! We walk you through all of the Jeep Wrangler configurations below. We’ve even put together a side by side Wrangler Sport vs. Wrangler Sahara vs. Wrangler Rubicon comparison…

  • 2020 Jeep Wrangler Accessories

      SUV drivers in Corpus Christi will find a lot to like in the 2020 Jeep Wrangler. It’s got rugged styling that is sure to get you through your daily drive and get noticed, but it’s also got a great selection of accessories that will let you make your Wrangler one of a kind. Allen Samuels CDJR Aransas Pass has…

  • 2020 Dodge Journey Towing Capacity

      Looking for an affordable, efficient, and spacious new three-row SUV near Kingsville? The 2020 Dodge Journey is a fantastic option. This new Dodge SUV boasts an abundance of amenities that make your every Corpus Christi area adventure more appealing. Plus, it’s got the passenger and cargo space you require to make the most of your…

Saved Vehicles

SAVED VEHICLES

You don't have any saved vehicles!

Look for this link on your favorites:

Save

Once you've saved some vehicles, you can view them here at any time.

Contact Us

(361) 386-2626

Call Now

877 HWY 35 Bypass • Aransas Pass, TX 78336

Get Directions

Today's Hours:

Open Today! Sales: 9am-6pm

Open Today! Service: 7:15am-2pm

Allen Samuels CDJR Aransas Pass 27.910508, -97.1527932.