Toyo Open Country R/T Trail 33x12.50R18 Tires
Toyo Open Country R/T Trail 33x12.50R18 F 122Q is an all-terrain tire priced from $394.92.
Toyo Open Country R/T Trail 33x12.50R18 F 122Q Tire Specs
33x12.50R18 is a Flotation tire.
Let us decode each aspect of the tire size code to have a full understanding what this tire size means.
33 is the overall diameter of a tire, or tire height, when it is fully inflated and not under load. For 33x12.50R18, tire diameter is 33 inches.
12.50 indicates the section width of the tire from one sidewall to the other. Tire tread width is typically a bit narrower than the section width. Section width of 33x12.50R18 tire is 12.50 inches.
R denotes that 33x12.50R18 tire has radial construction.
18 represents the wheel diameter in inches that the tire is designed to fit. 33x12.50R18 can be mounted on rims with 18 inches in diameter.
F denotes the load range of a tire. Load Range F is equivalent to a ply rating of 12. However, modern tires don't necessarily have 12 physical plies. These tires are generally rated for a maximum inflation pressure of 95 psi, and are commonly used in commercial and industrial settings, where vehicles frequently carry heavy loads or operate under strenuous conditions. They are found on larger trucks, trailers, and some RVs.
122 indicates the load index. A tire with a load index of 122 can support a maximum load of 3307 pounds or 1500 kilograms per tire.
Q indicates the speed rating. A tire with a speed rating of Q is approved for speeds up to 99 miles per hour or 159 kilometers per hour under optimal conditions.
Maximum inflation for Toyo Open Country R/T Trail 33x12.50R18 tire is 80 psi.
Tire manufacturer part number (MPN) is 354370.

33x12.50R18 Dimensions Chart
Toyo Open Country R/T Trail 33x12.50R18 tire has a diameter of 33", a width of 12.50", mounts on a 18" rim, and makes 612 revolutions per mile.
Metric | Inches | |
---|---|---|
Tire Width | 317.5 mm | 12.50" |
Aspect Ratio | 60% | |
Rim Diameter | 457 mm | 18" |
Tire Diameter | 838 mm | 33" |
Sidewall Height | 190.5 mm | 7.5" |
Circumference | 2631 mm | 103.6" |
Revolutions | 380 per km | 612 per mile |
More 33x12.50R18 Tires
Here are the lowest priced tires availabe in 33x12.50R18 tire size.

Atturo Trail Blade X/T 33x12.50R18
from $223.96
Atturo Trail Blade M/T 33x12.50R18
from $223.97
Atturo Trail Blade MTS 33x12.50R18
from $228.97
Atturo Trail Blade M/T 33x12.50R18
from $229.99
Atturo Trail Blade X/T 33x12.50R18
from $234.13
Atturo Trail Blade MTS 33x12.50R18
from $238.96
Milestar Patagonia M/T 33x12.50R18
from $240.97
Milestar Patagonia M/T-02 33x12.50R18
from $289.95Shop more 33x12.50R18 tires with tire finder.
All listed guides, data and/or calculations are for informational purposes only. TireSizes.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information.