33x12.50R18 Tire Size

Understanding 33x12.50R18 tire size is crucial for making informed decisions when purchasing new tires, whether it is for replacement or upgrade, as it plays an important role in your vehicle's performance and safety. Let's explore 33x12.50R18 tire size specs and dimensions, what vehicles are equipped with 33x12.50R18 tires and what are its replacement alternatives.

Buy 33x12.50R18 Tires from $234.96

What does 33x12.50R18 mean?

33x12.50R18 is a Flotation tire size that is commonly used on light trucks and commercial vehicles that require extra durability and load carrying capacity. Let us decode each aspect of 33x12.50R18 tire size dimensions for better understanding.

  • 33 - this number represents the overall diameter of a tire when it is fully inflated and not under load. For this particular tire size, tire's diameter is 33 inches.
  • 12.50 - this number indicates tire's section width, which includes the entire width of the tire from one sidewall to the other. The tread width is typically a bit narrower than the section width. Since this is a Flotation tire size, this measurement is in inches. So section width of this particular tire is 12.50 inches.
  • R - this letter denotes that tire has radial construction.
  • 18 - the last number indicates the wheel diameter in inches that the tire is designed to fit. 33x12.50R18 can be mounted on rims with 18 inches in diameter.
33x12.50R18 Section Width
33x12.50R18 Tire Side
Tire Circumference
612 Revs/Mile
Metric Inches
Tread Width 317.5 mm 12.50"
Aspect Ratio 60%
Rim Diameter 457 mm 18"
Tire Diameter 838.2 mm 33"
Sidewall Height 190.5 mm 7.5"
Circumference 2632 mm 103.6"
Revolutions 380 per km 612 per mile

What vehicles use 33x12.50R18 tire size?

No vehicles found.

What are replacement alternatives for 33x12.50R18 tire?

Replacement tires have to be within 3% of the original tire's overall diameter to ensure safe drive and proper speedometer readings. Below is a list of replacement and plus tire sizes that are within the optimal characteristics of the original 33x12.50R18 tire size.

Keep in mind that different vehicles have different tire requirements. Passenger cars, SUVs, trucks, and high-performance vehicles each have specific types of tires that are engineered for their particular needs. When replacing tires on your vehicle, always refer to your vehicle's owner's manual for manufacturer recommendations on tire size, type, and other specifications.

Replacement Tire Size Overall Diameter Difference
305/60R18 -1.8%
305/65R18 1.9%
LT305/60R18 -1.8%
LT305/65R18 1.9%
325/60R18 1.1%
LT325/60R18 1%
305/55R20 0.6%
315/50R20 -1.8%
P305/55R20 0.6%
LT315/50R20 -1.8%
LT325/50R20 -0.6%
LT305/55R20 0.7%
325/50R20 -0.6%

What wheels can 33x12.50R18 tire be mounted on?

33x12.50R18 tires are generally approved to be mounted on 8.5" to 11" wide wheels. The follwing wheel sizes can be used:

  • 18x8.5
  • 18x9
  • 18x9.5
  • 18x10
  • 18x10.5
  • 18x11

All listed guides, data and/or calculations are for informational purposes only. Tire-Sizes.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information.