285/55R20 Conversion

When converted to inches, 285/55R20 is equivalent to 32.4x11.2R20.

285/55R20 tire has a section width of 11.2 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 6.2 inches (157 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 32.4 inches (822 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 101.7 inches (2581.1 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. 285/55R20 tire makes 623 revolutions per mile (387 revolutions per kilometer).

285/55R20 Replacement Tire Sizes

Replacement tires have to be within 3% of the original tire's overall diameter. 285/55R20 tire can be replaced with 25 compatible tire sizes. Select optional plus size to see its specs.

Tire Size	Overall Diameter	Difference
245/60R20	31.6" (802 mm)	-2.4%
305/40R22	31.6" (803 mm)	-2.3%
295/50R20	31.7" (804 mm)	-2.2%
275/45R22	31.8" (807 mm)	-1.8%
275/50R21	31.9" (809 mm)	-1.6%
275/55R20	31.9" (810 mm)	-1.5%
255/60R20	32" (814 mm)	-1%
305/50R20	32" (814 mm)	-1%
285/45R22	32.1" (815 mm)	-0.9%
315/45R21	32.2" (817 mm)	-0.6%
325/40R22	32.2" (819 mm)	-0.4%
315/50R20	32.4" (824 mm)	0.2%
295/45R22	32.5" (825 mm)	0.4%
265/50R22	32.5" (825 mm)	0.4%
265/60R20	32.5" (826 mm)	0.5%
295/55R20	32.8" (832 mm)	1.2%
305/45R22	32.8" (833 mm)	1.3%
325/50R20	32.8" (834 mm)	1.5%
275/50R22	32.9" (835 mm)	1.6%
275/60R20	33" (838 mm)	1.9%
315/45R22	33.2" (843 mm)	2.6%
355/40R22	33.2" (843 mm)	2.6%
305/55R20	33.2" (844 mm)	2.7%
285/50R22	33.3" (845 mm)	2.8%
375/45R20	33.3" (846 mm)	2.9%