225/30R20 Tires

225/30R20 Conversion

When converted to inches, 225/30R20 is equivalent to 25.4x8.9R20.

225/30R20 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 2.7 inches (68 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 25.4 inches (644 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 79.8 inches (2022.2 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. 225/30R20 tire makes 794 revolutions per mile (495 revolutions per kilometer).

225/30R20 Section Width
8.9"
25.4"
225/30R20 Tire Side
Tire Circumference
79.8"
20"
2.7"
794 Revs/Mile
Metric Inches
Overall Diameter (Tire Height) 644 mm 25.4"
Tread Width 225 mm 8.9"
Rim Diameter 508 mm 20"
Sidewall Height 68 mm 2.7"
Circumference 2022.2 mm 79.8"
Revolutions 495 per km 794 per mile

225/30R20 Replacement Tire Sizes

Replacement tires have to be within 3% of the original tire's overall diameter. 225/30R20 tire can be replaced with 8 compatible tire sizes. Select optional plus size to see its specs.

Tire Size Overall Diameter Difference
215/30R20 25.1" (638 mm) -0.9%
275/25R20 25.4" (646 mm) 0.3%
235/30R20 25.6" (650 mm) 0.9%
285/25R20 25.6" (650 mm) 0.9%
245/30R20 25.8" (656 mm) 1.9%
295/25R20 25.8" (656 mm) 1.9%
305/25R20 26" (660 mm) 2.5%
255/30R20 26.1" (662 mm) 2.8%