When converted to inches, 225/40R14 is equivalent to 21.1x8.9R14.
225/40R14 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 14 inches represents the size of the wheel the tire can be mounted on. Sidewall height of 3.5 inches (90 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 21.1 inches (536 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 66.3 inches (1683 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. 225/40R14 tire makes 956 revolutions per mile (594 revolutions per kilometer).
Overall Diameter (Tire Height)
594 per km
956 per mile
Best Prices on 225/40R14 Tires
225/40R14 Replacement Tire Sizes
Replacement tires have to be within 3% of the original tire's overall diameter. 225/40R14 tire can be replaced with 17 compatible tire sizes. Select optional plus size to see its specs.