305/25R20 Conversion

When converted to inches, 305/25R20 is equivalent to 26x12R20.

305/25R20 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 20 inches represents the size of the wheel the tire can be mounted on. Sidewall height of 3 inches (76 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 26 inches (660 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 81.6 inches (2072.4 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. 305/25R20 tire makes 776 revolutions per mile (483 revolutions per kilometer).

305/25R20 Replacement Tire Sizes

Replacement tires have to be within 3% of the original tire's overall diameter. 305/25R20 tire can be replaced with 16 compatible tire sizes. Select optional plus size to see its specs.

Tire Size	Overall Diameter	Difference
225/30R20	25.4" (644 mm)	-2.4%
275/25R20	25.4" (646 mm)	-2.1%
235/30R20	25.6" (650 mm)	-1.5%
285/25R20	25.6" (650 mm)	-1.5%
245/30R20	25.8" (656 mm)	-0.6%
295/25R20	25.8" (656 mm)	-0.6%
255/30R20	26.1" (662 mm)	0.3%
315/25R20	26.2" (666 mm)	0.9%
225/35R20	26.2" (666 mm)	0.9%
265/30R20	26.3" (668 mm)	1.2%
325/25R20	26.4" (670 mm)	1.5%
275/25R21	26.4" (671 mm)	1.7%
235/35R20	26.5" (672 mm)	1.8%
275/30R20	26.5" (674 mm)	2.1%
235/30R21	26.6" (675 mm)	2.3%
335/25R20	26.6" (676 mm)	2.4%