When converted to inches, 275/50R18 is equivalent to 28.9x10.8R18.
275/50R18 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 5.4 inches (138 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 28.9 inches (733 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 90.7 inches (2301.6 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. 275/50R18 tire makes 699 revolutions per mile (434 revolutions per kilometer).
Overall Diameter (Tire Height)
434 per km
699 per mile
Best Prices on 275/50R18 Tires
275/50R18 Replacement Tire Sizes
Replacement tires have to be within 3% of the original tire's overall diameter. 275/50R18 tire can be replaced with 53 compatible tire sizes. Select optional plus size to see its specs.