When converted to inches, 225/45R20 is equivalent to 28x8.9R20.
225/45R20 tire has a section width of 8.9 inches which is the measurement of tire's width from its inner sidewall to its outer sidewall. Rim diameter of 20 inches represents the size of the wheel the tire can be mounted on. Sidewall height of 4 inches (101 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 28 inches (710 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 87.9 inches (2229.4 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. 225/45R20 tire makes 721 revolutions per mile (449 revolutions per kilometer).
Overall Diameter (Tire Height)
449 per km
721 per mile
Best Prices on 225/45R20 Tires
225/45R20 Replacement Tire Sizes
Replacement tires have to be within 3% of the original tire's overall diameter. 225/45R20 tire can be replaced with 55 compatible tire sizes. Select optional plus size to see its specs.