When converted to inches, 275/80R18 is equivalent to 35.3x10.8R18.
275/80R18 tire has a section width of 10.8 inches which is the measurement of tire's width from its inner sidewall to its outer sidewall. Rim diameter of 18 inches represents the size of the wheel the tire can be mounted on. Sidewall height of 8.7 inches (220 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 35.3 inches (897 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 110.8 inches (2816.6 mm) is the outer perimeter of the tire. Tire revolutions indicate the number of times a tire revolves while it covers the distance in miles or kilometers. 275/80R18 tire makes 572 revolutions per mile (355 revolutions per kilometer).
Overall Diameter (Tire Height)
355 per km
572 per mile
Best Prices on 275/80R18 Tires
275/80R18 Replacement Tire Sizes
Replacement tires have to be within 3% of the original tire's overall diameter. 275/80R18 tire can be replaced with 16 compatible tire sizes. Select optional plus size to see its specs.