285/75R18 Tires

285/75R18 Conversion

When converted to inches, 285/75R18 is equivalent to 34.8x11.2R18.

285/75R18 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 8.4 inches (214 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 34.8 inches (885 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 109.3 inches (2778.9 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. 285/75R18 tire makes 580 revolutions per mile (360 revolutions per kilometer).

285/75R18 Section Width
11.2"
34.8"
285/75R18 Tire Side
Tire Circumference
109.3"
18"
8.4"
580 Revs/Mile
Metric Inches
Overall Diameter (Tire Height) 885 mm 34.8"
Tread Width 285 mm 11.2"
Rim Diameter 457.2 mm 18"
Sidewall Height 214 mm 8.4"
Circumference 2778.9 mm 109.3"
Revolutions 360 per km 580 per mile

285/75R18 Replacement Tire Sizes

Replacement tires have to be within 3% of the original tire's overall diameter. 285/75R18 tire can be replaced with 16 compatible tire sizes. Select optional plus size to see its specs.

Tire Size Overall Diameter Difference
295/60R20 33.9" (862 mm) -2.6%
355/50R20 34" (864 mm) -2.4%
275/65R20 34.1" (866 mm) -2.1%
295/70R18 34.3" (871 mm) -1.6%
345/60R18 34.3" (871 mm) -1.6%
305/60R20 34.4" (874 mm) -1.2%
335/55R20 34.5" (876 mm) -1%
285/65R20 34.6" (878 mm) -0.8%
325/65R18 34.6" (879 mm) -0.7%
305/70R18 34.8" (885 mm) 0%
315/60R20 34.9" (886 mm) 0.1%
295/65R20 35.1" (892 mm) 0.8%
275/80R18 35.3" (897 mm) 1.4%
325/60R20 35.4" (898 mm) 1.5%
315/70R18 35.4" (899 mm) 1.6%
375/60R18 35.7" (907 mm) 2.5%