315 70r18 vs 35×12 50r18 Tire Size

When it comes time to replace the tires on your vehicle, you will quickly realize that there are a lot of options to choose from. Different sizes, brands, and types of tires can make the decision overwhelming. So, which tire size is right for you?

In this blog post, we will compare the 315 70r18 and 35×12 50r18 tire sizes. By the end of this post, you should have a good idea of which option is best for your vehicle!

315 70r18 vs 35×12 50r18 Table

315 70r18

35x12 50r18

Overall Diameter 35.36 inches

Overall Diameter 35.03 inches

Width 12.4 inches 

Width 12.52 inche 

Sidewall Height 8.68 inches 

Sidewall Height 8.51 inches 

Radial Tire (A Radial-Ply Tire)

Radial Tire (A Radial-Ply Tire)

Rim Size 18 inches

Rim Size 18 inches

Circumference 111.09 inches

Circumference 110.04 inches

Revs Per Mile 570

Revs Per Mile 575

What Does 315 70r18 Tire Mean?

The 315 70r18 tire size is a bit of a mouthful. But what does it all mean? The first number, 315, refers to the width of the tire in millimeters. The second number, 70, is the aspect ratio. This number refers to the height of the sidewall as a percentage of the width.

In other words, the 70 in 315 70r18 means that the sidewall is 70% as tall as it is wide. The final letter and number combination, r18, refers to the diameter of the wheel that the tire can be mounted. In this case, the r stands for radial, and the 18 refers to inches.

What Does 35×12 50r18 Tire Mean?

The “35” in the 35×12 50r18 Tire Size is the diameter of the wheel. The “12.50” is the width of the tire in inches. The “r” in 35×12 50r18 stands for radial. The “18” in 35×12 50r18 is the diameter of the wheel that the tire can be mounted. Now that we have decoded the numbers and letters in each tire size let’s compare the two!

Tire Diameter

When it comes to tire diameter, the 315 70r18 is slightly larger than the 35×12 50r18. The difference may not seem like much, but it can make a big difference when it comes to the overall feel of your vehicle.

If you are looking for a tire that will give you a smooth ride, then the 35×12 50r18 is an excellent option. If you are looking for a tire that will provide a little more grip and stability, then the 315 70r18 is a better option.

Section Width

The section width of a tire is the measurement of the tire from sidewall to sidewall. In other words, it is the width of the tire when it is mounted on the wheel. The section width of the 315 70r18 is 315 millimeters. The section width of the 35×12 50r18 is 318 millimeters. So, the 35×12 50r18 is slightly wider than the 315 70r18.

Circumference

The circumference of a tire is the distance around the outside of the tire. The 315 70r18 has a circumference of 111.09 inches. The 35×12 50r18 has a circumference of 110.04 inches. So, the 315 70r18 is slightly larger than the 35×12 50r18.

Revolutions Per Mile

The number of revolutions per mile (RPM) is a measure of how far the tire will travel in one mile. The 315 70r18 has an RPM of 570. The 35×12 50r18 has an RPM of 575. So, the 35×12 50r18 will travel slightly further than the 315 70r18 in one mile.

Sidewall Height

The sidewall height is the distance from the edge of the wheel to the top of the tire. The 315 70r18 has a sidewall height of 8.68 inches. The 35×12 50r18 has a sidewall height of 8.51 inches. So, the 315 70r18 has a taller sidewall than the 35×12 50r18.

Wheel Size

Rim size is the diameter of the wheel that the tire can be mounted on. The 315 70r18 can be mounted on an 18-inch wheel. The 35×12 50r18 can be mounted on an 18-inch wheel. So, the two tires are compatible with the same size wheels.

Construction Type

The construction type of a tire refers to how the layers of the tire are put together. The 315 70r18 is a radial tire. The 35×12 50r18 is also a radial tire. So, the two tires have the same construction type.

Our Observation

The main difference between 315 70r18 and 35×12 50r18 Tire Sizes is in their width and diameter. The 315 70r18 is more comprehensive but has a smaller diameter than the 35×12 50r18. So, the 315 70r18 will provide more grip and stability than the 35×12 50r18. But, the 35×12 50r18 will give you a smoother ride.

Conclusion

If you are looking for a tire that will give you the best of both worlds, then the 315 70r18 is ideal. But, if you are looking for a tire specializing in either grip or smoothness, then the 35×12 50r18 is the better option. Whichever tire you choose, you can’t go wrong with either of these two options!

I hope this article helped you understand the differences between 315 70r18 and 35×12 50r18 Tire Sizes. If you have any questions, feel free to leave a comment below! Thanks for reading!

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