245/55R18 Tires

245/55R18 Conversion

When converted to inches, 245/55R18 is equivalent to 28.6x9.6R18.

245/55R18 tire has a section width of 9.6 inches which is the measurement of tire's width from its inner sidewall to its outer sidewall. Rim diameter of 18 inches represents the size of the wheel the tire can be mounted on. Sidewall height of 5.3 inches (135 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 28.6 inches (727 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 89.8 inches (2282.8 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. 245/55R18 tire makes 706 revolutions per mile (438 revolutions per kilometer).

245/55R18 Section Width
9.6"
28.6"
245/55R18 Tire Side
Tire Circumference
89.8"
18"
5.3"
706 Revs/Mile
Metric Inches
Overall Diameter (Tire Height) 727 mm 28.6"
Tread Width 245 mm 9.6"
Rim Diameter 457.2 mm 18"
Sidewall Height 135 mm 5.3"
Circumference 2282.8 mm 89.8"
Revolutions 438 per km 706 per mile

245/55R18 Replacement Tire Sizes

Replacement tires have to be within 3% of the original tire's overall diameter. 245/55R18 tire can be replaced with 51 compatible tire sizes. Select optional plus size to see its specs.

Tire Size Overall Diameter Difference
165/60R20 27.8" (706 mm) -2.9%
285/35R20 27.9" (708 mm) -2.6%
315/40R18 27.9" (709 mm) -2.5%
155/65R20 28" (710 mm) -2.3%
335/30R20 28" (710 mm) -2.3%
225/45R20 28" (710 mm) -2.3%
285/40R19 28" (711 mm) -2.2%
255/40R20 28" (712 mm) -2.1%
285/45R18 28.1" (713 mm) -1.9%
255/45R19 28.1" (713 mm) -1.9%
255/50R18 28.1" (713 mm) -1.9%
295/35R20 28.1" (714 mm) -1.8%
235/55R18 28.1" (715 mm) -1.7%
145/80R19 28.1" (715 mm) -1.7%
345/30R20 28.2" (716 mm) -1.5%
235/50R19 28.3" (719 mm) -1.1%
295/40R19 28.3" (719 mm) -1.1%
265/40R20 28.3" (720 mm) -1%
235/45R20 28.3" (720 mm) -1%
155/85R18 28.4" (721 mm) -0.8%
265/45R19 28.4" (721 mm) -0.8%
305/35R20 28.4" (722 mm) -0.7%
265/50R18 28.5" (723 mm) -0.6%
295/45R18 28.5" (723 mm) -0.6%
345/35R19 28.5" (725 mm) -0.3%
225/60R18 28.6" (727 mm) 0%
315/35R20 28.7" (728 mm) 0.1%
275/40R20 28.7" (728 mm) 0.1%
245/45R20 28.7" (728 mm) 0.1%
245/50R19 28.7" (729 mm) 0.3%
275/45R19 28.8" (731 mm) 0.6%
155/80R19 28.8" (731 mm) 0.6%
225/55R19 28.8" (731 mm) 0.6%
305/45R18 28.8" (731 mm) 0.6%
275/50R18 28.9" (733 mm) 0.8%
315/40R19 28.9" (735 mm) 1.1%
325/35R20 29" (736 mm) 1.2%
285/40R20 29" (736 mm) 1.2%
175/80R18 29" (737 mm) 1.4%
155/90R18 29" (737 mm) 1.4%
255/55R18 29" (737 mm) 1.4%
255/45R20 29.1" (738 mm) 1.5%
285/45R19 29.1" (739 mm) 1.7%
255/50R19 29.1" (739 mm) 1.7%
235/60R18 29.1" (739 mm) 1.7%
145/80R20 29.1" (740 mm) 1.8%
235/55R19 29.2" (741 mm) 1.9%
285/50R18 29.3" (743 mm) 2.2%
235/50R20 29.3" (744 mm) 2.3%
295/40R20 29.3" (744 mm) 2.3%
265/45R20 29.4" (746 mm) 2.6%