245/75R18
Standard MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
The 245/75R18 tire size features an overall diameter of 32.47 inches, a section width of 9.6 inches (245mm), and rotates 621 times per mile. It is a standard factory tire fitment on 16+ vehicle models including Toyota Tundra.
Physical Dimensions & Specs
Overall Diameter
32.47"
824.7 mmSection Width
245 mm
9.65" wideSidewall Height
7.23"
183.6 mm (75% aspect)Revolutions / Mile
621
Circumference: 102"Rim Diameter
18"
Wheel sizeRecommended Rim Width
6.1" - 8.6"
Optimal rim width rangeWhere to Buy & Install 245/75R18 Tires
Looking for 245/75R18 tires? Skip hauling tires in your car—choose direct delivery to a local certified shop or doorstep delivery:
Tire Rack
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Amazon Automotive
Fast doorstep shipping for DIYers or bringing to your own shop.
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Speedometer & Alternate Size Calculator
Testing an alternate size for your vehicle? Compare 245/75R18 against any proposed tire size below:
Visual Tire & Wheel Comparison
Speedometer Variance
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 18.2 mph | -1.8 mph |
| 30 mph | 27.3 mph | -2.7 mph |
| 45 mph | 41.0 mph | -4.0 mph |
| 60 mph | 54.7 mph | -5.3 mph |
| 75 mph | 68.3 mph | -6.7 mph |
| 90 mph | 82.0 mph | -8.0 mph |
Fender & Suspension Clearance
Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.
Vehicles That Fit 245/75R18 (16+ Models)
Factory standard and optional vehicle fitments utilizing 245/75R18 tires: