When converted to inches, 145/65R18 is equivalent to 25.4x5.7R18.
145/65R18 tire has a section width of 5.7 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 3.7 inches (94 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 25.4 inches (645 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 79.8 inches (2025.3 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. 145/65R18 tire makes 794 revolutions per mile (494 revolutions per kilometer).
Overall Diameter (Tire Height)
494 per km
794 per mile
Best Prices on 145/65R18 Tires
145/65R18 Replacement Tire Sizes
Replacement tires have to be within 3% of the original tire's overall diameter. 145/65R18 tire can be replaced with 55 compatible tire sizes. Select optional plus size to see its specs.