255/30R20 Tires

255/30R20 Conversion

When converted to inches, 255/30R20 is equivalent to 26.1x10R20.

255/30R20 tire has a section width of 10 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 (77 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 26.1 inches (662 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 82 inches (2078.7 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. 255/30R20 tire makes 773 revolutions per mile (481 revolutions per kilometer).

255/30R20 Section Width
10"
26.1"
255/30R20 Tire Side
Tire Circumference
82"
20"
3"
773 Revs/Mile
Metric Inches
Overall Diameter (Tire Height) 662 mm 26.1"
Tread Width 255 mm 10"
Rim Diameter 508 mm 20"
Sidewall Height 77 mm 3"
Circumference 2078.7 mm 82"
Revolutions 481 per km 773 per mile

255/30R20 Replacement Tire Sizes

Replacement tires have to be within 3% of the original tire's overall diameter. 255/30R20 tire can be replaced with 21 compatible tire sizes. Select optional plus size to see its specs.

Tire Size Overall Diameter Difference
225/30R20 25.4" (644 mm) -2.7%
275/25R20 25.4" (646 mm) -2.4%
285/25R20 25.6" (650 mm) -1.8%
235/30R20 25.6" (650 mm) -1.8%
295/25R20 25.8" (656 mm) -0.9%
245/30R20 25.8" (656 mm) -0.9%
305/25R20 26" (660 mm) -0.3%
315/25R20 26.2" (666 mm) 0.6%
225/35R20 26.2" (666 mm) 0.6%
265/30R20 26.3" (668 mm) 0.9%
325/25R20 26.4" (670 mm) 1.2%
275/25R21 26.4" (671 mm) 1.4%
235/35R20 26.5" (672 mm) 1.5%
275/30R20 26.5" (674 mm) 1.8%
235/30R21 26.6" (675 mm) 2%
335/25R20 26.6" (676 mm) 2.1%
345/25R20 26.8" (680 mm) 2.7%
245/35R20 26.8" (680 mm) 2.7%
285/30R20 26.8" (680 mm) 2.7%
295/25R21 26.8" (681 mm) 2.9%
245/30R21 26.8" (681 mm) 2.9%