275/50R18 Tires

275/50R18 Conversion

When converted to inches, 275/50R18 is equivalent to 28.9x10.8R18.

275/50R18 tire has a section width of 10.8 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 5.4 inches (138 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 28.9 inches (733 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 90.7 inches (2301.6 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. 275/50R18 tire makes 699 revolutions per mile (434 revolutions per kilometer).

275/50R18 Section Width
10.8"
28.9"
275/50R18 Tire Side
Tire Circumference
90.7"
18"
5.4"
699 Revs/Mile
Metric Inches
Overall Diameter (Tire Height) 733 mm 28.9"
Tread Width 275 mm 10.8"
Rim Diameter 457.2 mm 18"
Sidewall Height 138 mm 5.4"
Circumference 2301.6 mm 90.7"
Revolutions 434 per km 699 per mile

275/50R18 Replacement Tire Sizes

Replacement tires have to be within 3% of the original tire's overall diameter. 275/50R18 tire can be replaced with 53 compatible tire sizes. Select optional plus size to see its specs.

Tire Size Overall Diameter Difference
255/40R20 28" (712 mm) -2.9%
255/45R19 28.1" (713 mm) -2.7%
255/50R18 28.1" (713 mm) -2.7%
285/45R18 28.1" (713 mm) -2.7%
295/35R20 28.1" (714 mm) -2.6%
145/80R19 28.1" (715 mm) -2.5%
235/55R18 28.1" (715 mm) -2.5%
345/30R20 28.2" (716 mm) -2.3%
295/40R19 28.3" (719 mm) -1.9%
235/50R19 28.3" (719 mm) -1.9%
265/40R20 28.3" (720 mm) -1.8%
235/45R20 28.3" (720 mm) -1.8%
155/85R18 28.4" (721 mm) -1.6%
265/45R19 28.4" (721 mm) -1.6%
305/35R20 28.4" (722 mm) -1.5%
265/50R18 28.5" (723 mm) -1.4%
295/45R18 28.5" (723 mm) -1.4%
345/35R19 28.5" (725 mm) -1.1%
245/55R18 28.6" (727 mm) -0.8%
225/60R18 28.6" (727 mm) -0.8%
315/35R20 28.7" (728 mm) -0.7%
275/40R20 28.7" (728 mm) -0.7%
245/45R20 28.7" (728 mm) -0.7%
245/50R19 28.7" (729 mm) -0.5%
275/45R19 28.8" (731 mm) -0.3%
305/45R18 28.8" (731 mm) -0.3%
155/80R19 28.8" (731 mm) -0.3%
225/55R19 28.8" (731 mm) -0.3%
315/40R19 28.9" (735 mm) 0.3%
285/40R20 29" (736 mm) 0.4%
325/35R20 29" (736 mm) 0.4%
255/55R18 29" (737 mm) 0.5%
155/90R18 29" (737 mm) 0.5%
175/80R18 29" (737 mm) 0.5%
255/45R20 29.1" (738 mm) 0.7%
255/50R19 29.1" (739 mm) 0.8%
285/45R19 29.1" (739 mm) 0.8%
235/60R18 29.1" (739 mm) 0.8%
145/80R20 29.1" (740 mm) 1%
235/55R19 29.2" (741 mm) 1.1%
285/50R18 29.3" (743 mm) 1.4%
295/40R20 29.3" (744 mm) 1.5%
235/50R20 29.3" (744 mm) 1.5%
265/45R20 29.4" (746 mm) 1.8%
295/45R19 29.5" (749 mm) 2.2%
225/65R18 29.5" (749 mm) 2.2%
325/45R18 29.5" (749 mm) 2.2%
265/55R18 29.5" (749 mm) 2.2%
265/50R19 29.5" (749 mm) 2.2%
245/60R18 29.6" (751 mm) 2.5%
305/40R20 29.6" (752 mm) 2.6%
245/55R19 29.6" (753 mm) 2.7%
245/50R20 29.7" (754 mm) 2.9%