When converted to inches, 305/70R15 is equivalent to 31.9x12R15.
305/70R15 tire has a section width of 12 inches which is the measurement of tire's width from its inner sidewall to its outer sidewall. Rim diameter of 15 inches represents the size of the wheel the tire can be mounted on. Sidewall height of 8.4 inches (214 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 31.9 inches (809 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 100.2 inches (2540.3 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. 305/70R15 tire makes 632 revolutions per mile (394 revolutions per kilometer).
Overall Diameter (Tire Height)
394 per km
632 per mile
Best Prices on 305/70R15 Tires
305/70R15 Replacement Tire Sizes
Replacement tires have to be within 3% of the original tire's overall diameter. 305/70R15 tire can be replaced with 24 compatible tire sizes. Select optional plus size to see its specs.