285/45R18 Tires

285/45R18 Conversion

When converted to inches, 285/45R18 is equivalent to 28.1x11.2R18.

285/45R18 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 18 inches represents the size of the wheel the tire can be mounted on. Sidewall height of 5 inches (128 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 28.1 inches (713 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 88.2 inches (2238.8 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. 285/45R18 tire makes 718 revolutions per mile (447 revolutions per kilometer).

285/45R18 Section Width
11.2"
28.1"
285/45R18 Tire Side
Tire Circumference
88.2"
18"
5"
718 Revs/Mile
Metric Inches
Overall Diameter (Tire Height) 713 mm 28.1"
Tread Width 285 mm 11.2"
Rim Diameter 457.2 mm 18"
Sidewall Height 128 mm 5"
Circumference 2238.8 mm 88.2"
Revolutions 447 per km 718 per mile

285/45R18 Replacement Tire Sizes

Replacement tires have to be within 3% of the original tire's overall diameter. 285/45R18 tire can be replaced with 68 compatible tire sizes. Select optional plus size to see its specs.

Tire Size Overall Diameter Difference
305/30R20 27.2" (692 mm) -2.9%
175/60R19 27.3" (693 mm) -2.8%
215/55R18 27.3" (693 mm) -2.8%
235/50R18 27.3" (693 mm) -2.8%
295/40R18 27.3" (693 mm) -2.8%
155/60R20 27.3" (694 mm) -2.7%
265/35R20 27.3" (694 mm) -2.7%
235/45R19 27.4" (695 mm) -2.5%
265/40R19 27.4" (695 mm) -2.5%
265/45R18 27.4" (695 mm) -2.5%
235/40R20 27.4" (696 mm) -2.4%
145/65R20 27.4" (696 mm) -2.4%
305/35R19 27.4" (697 mm) -2.2%
355/30R19 27.4" (697 mm) -2.2%
315/30R20 27.5" (698 mm) -2.1%
345/35R18 27.5" (699 mm) -2%
275/35R20 27.6" (700 mm) -1.8%
175/55R20 27.6" (700 mm) -1.8%
305/40R18 27.6" (701 mm) -1.7%
155/70R19 27.6" (701 mm) -1.7%
215/45R20 27.6" (702 mm) -1.5%
205/60R18 27.7" (703 mm) -1.4%
315/35R19 27.7" (703 mm) -1.4%
145/85R18 27.7" (703 mm) -1.4%
275/40R19 27.7" (703 mm) -1.4%
245/45R19 27.7" (703 mm) -1.4%
245/50R18 27.7" (703 mm) -1.4%
325/30R20 27.7" (704 mm) -1.3%
245/40R20 27.7" (704 mm) -1.3%
195/50R20 27.7" (704 mm) -1.3%
275/45R18 27.8" (705 mm) -1.1%
225/55R18 27.8" (705 mm) -1.1%
155/80R18 27.8" (705 mm) -1.1%
165/60R20 27.8" (706 mm) -1%
285/35R20 27.9" (708 mm) -0.7%
315/40R18 27.9" (709 mm) -0.6%
225/45R20 28" (710 mm) -0.4%
155/65R20 28" (710 mm) -0.4%
335/30R20 28" (710 mm) -0.4%
285/40R19 28" (711 mm) -0.3%
255/40R20 28" (712 mm) -0.1%
255/45R19 28.1" (713 mm) 0%
255/50R18 28.1" (713 mm) 0%
295/35R20 28.1" (714 mm) 0.1%
235/55R18 28.1" (715 mm) 0.3%
145/80R19 28.1" (715 mm) 0.3%
345/30R20 28.2" (716 mm) 0.4%
295/40R19 28.3" (719 mm) 0.8%
235/50R19 28.3" (719 mm) 0.8%
265/40R20 28.3" (720 mm) 1%
235/45R20 28.3" (720 mm) 1%
265/45R19 28.4" (721 mm) 1.1%
155/85R18 28.4" (721 mm) 1.1%
305/35R20 28.4" (722 mm) 1.3%
265/50R18 28.5" (723 mm) 1.4%
295/45R18 28.5" (723 mm) 1.4%
345/35R19 28.5" (725 mm) 1.7%
245/55R18 28.6" (727 mm) 2%
225/60R18 28.6" (727 mm) 2%
315/35R20 28.7" (728 mm) 2.1%
245/45R20 28.7" (728 mm) 2.1%
275/40R20 28.7" (728 mm) 2.1%
245/50R19 28.7" (729 mm) 2.2%
305/45R18 28.8" (731 mm) 2.5%
155/80R19 28.8" (731 mm) 2.5%
225/55R19 28.8" (731 mm) 2.5%
275/45R19 28.8" (731 mm) 2.5%
275/50R18 28.9" (733 mm) 2.8%