325/45R24 Tires & Tire Size

325/45R24 refers to the size of the tire. It’s a standard which is used by car and tire manufacturers. By having the standard, tire manufacturers are able to manufacture same size tires independently and users can buy same size tires from different manufacturers.

Here’s an explanation of what these metrics mean in practice:

325 The tire width is 325mm.
45 The aspect ratio of the tire is 45. Aspect ratio refers to the height of tire sidewall in relation to tire width in percentages.
R The letter in the middle refers to tire construction. Practically all tires sold for cars are radials.
Sometimes you also see tires with RF or ZR. RF indicates the tire is run flat, whereas ZR means the tire has speed rating higher than V. These tires are also radials, as the R indicates.
24 Rim diameter for the tire. 325/45R24 tire can be mounted only to a 24″ rims.

Best selling 325/45R24 tires

What is 325/45R24 tire size in inches?

Because the width of 325/45R24 tire is stated in millimeters and sidewall height in percentages, you have to make calculations to see what the true size of 325/45R24 is in inches. Luckily, we have made these calculations for you.In this table you can see size of 325/45R24 in inches, as well as few additional metrics:

  In inches In millimeters
Section Width 12.8″ 325mm
Sidewall height 5.8″ 146mm
Diameter / Height 35.5″ 902mm
Circumference 111.6″ 2834mm
Rim Diameter  24″  
Revolutions  568 per mile  353 per kilometer

Recommended Rim Sizes for 325/45R24 Tires

For 325/45R24 tires you need to have correct size rims to install the tires to. There are different width rims available in the market, and you can run into problems by installing 325/45R24 to a too wide or too narrow rim. Here are the recommended rim sizes for 325/45R24 tire:

Diameter Width Range
24″ 10-12″

325/45R24 – Variations

When you look at the tire code on 325/45R24 tires, you may see there are additional numbers and letters after the code 325/45R24. These numbers and letters refer to speed rating and load index of the tire. 325/45R24 has at least following variations available on the markets:

325/45R24 116V