How To Read Tire Size

Car Tires

When it comes to getting where you need to go in the Panama City, Springfield, and Callaway areas, your tires play an integral part in making that happen. Having the correct sized tires for your vehicle is crucial, allowing your travels to be safe and efficient. How do you know, though, which size is right for your ride?

Below, you will discover how to read tire sizes in this handy guide by the team at Honda of Bay County. So, the next time you need a tire replacement, you’ll be fully prepared to pick out the ones that will work best for your model.

Type of Tire

Taking a look at your current tires is the first step to figuring out how to read tire size. On your tire’s sidewall, you’ll find a series of numbers and letters. This holds all the information you need!

The first letter indicates which tire type you’ll be looking for. Typically, the letters P or LT will be found. This means you either have a P-metric tire, which is standard for most passenger vehicles, or a Light Truck tire. However, LT might also appear at the end of the sequence, as well.

Tire Width

hecking Tire Pressure

The next set of numbers lets you know the width of the tire measured from the front sidewall to back sidewall. This should be three digits long and followed by a slash (/). Now, you know the correct width!

Aspect Ratio & Radical

After the slash mark, you will find two numbers and the letter R. This sequence indicates the height of your tire’s cross-section to the tire’s width, which is called the aspect ratio. For instance, if you see /50 R, the height of the wheel is 50% of the width.

The R followed by the height ratio is the radial of your wheels. This means that the layers run radially across, or at right angles to the circumference of your tire.

Wheel Diameter

Right after the aspect ratio and radial info, two more numbers should be listed. This tells you the size of the wheel that this tire is meant for.

For example, if there is a 17 here, you should look for a 17-inch wheel, so your wheels and tires fit together smoothly.

Load Index & Speed Rating

Filling Tires with Air

The final set of numbers (and a letter) represent the load index and speed rating of this tire. The numbers signify the load index, which is how much weight your tire can support. The speed rating, which is a letter, tells you the speed limitations you should consider while driving.

Speed indexes are represented by a different letter that equal different speed ranges. One of the most common on everyday vehicles is H. This means your tires can handle a top speed of 130 MPH. To not damage your tires or vehicle, it’s recommended you don’t exceed this speed.  

Find Your New Set of Tires at Honda of Bay County

Now that you know how to read tire sizes, it’s time to equip your car with the best set for your Panama City, Springfield, and Callaway commutes. In our tire center, our team will be happy to assist and even install them for you, having you back on the road in no time.

Schedule your appointment today!