285/55R18 Tire Size in Inches

285/55R18 is a metric tire size representation, which defines that the tires have a width of 285 mm, 55 is the aspect ratio and a rim diameter of 18 inches. In the imperial system the tire size 285/55R18 equates to a 30.4×11.2R18 that is commonly used in the automotive industry. So Converting 285/55R18 in inches the tires have a length of 30.4 inches, a width of 11.2 inches, a sidewall height of 6.2 inches and The number of complete resolutions made by the corresponding tire size is equal to 663 per mile with a circumference of 95.5 inches.

285/55R18 tire size in inches

285/55R18inchesmm
Tire Diameter30.4 inches771 mm
Tread Width11.2 inches285 mm
Rim Diameter18 inches457 mm
Sidewall Height6.2 inches157 mm
Circumference95.5 inches2421 mm
Revolutions663 per mile413 per km

Tire Size Calculator

Tire Diameter
Tread Width
Rim Diameter
Sidewall Height
Circumference
Revolutions

285/55R18 Equivalent Tire Sizes for replacement

If you are replacing your tires, always keep in mind that they are compatible with your vehicle so that the impact on the overall performance of your vehicle can be reduced. Here we have listed some tire size that is equivalent to 285/55R18 tires.

Tire Size Overall Diameter Difference
325/45R18 29.5″ (749 mm) -2.9%
265/50R19 29.5″ (749 mm) -2.9%
225/65R18 29.5″ (749 mm) -2.9%
265/55R18 29.5″ (749 mm) -2.9%
295/45R19 29.5″ (749 mm) -2.9%
245/60R18 29.6″ (751 mm) -2.6%
305/40R20 29.6″ (752 mm) -2.5%
245/55R19 29.6″ (753 mm) -2.3%
245/50R20 29.7″ (754 mm) -2.2%
165/90R18 29.7″ (755 mm) -2.1%
275/45R20 29.8″ (756 mm) -1.9%
275/55R18 29.9″ (759 mm) -1.6%
275/50R19 29.9″ (759 mm) -1.6%
255/55R19 30″ (763 mm) -1%
235/65R18 30″ (763 mm) -1%
175/80R19 30″ (763 mm) -1%
255/60R18 30″ (763 mm) -1%
285/45R20 30.1″ (764 mm) -0.9%
255/50R20 30.1″ (764 mm) -0.9%
235/60R19 30.1″ (765 mm) -0.8%
235/55R20 30.2″ (766 mm) -0.6%
175/90R18 30.4″ (773 mm) 0.3%
265/50R20 30.5″ (774 mm) 0.4%
295/45R20 30.5″ (774 mm) 0.4%
245/65R18 30.5″ (775 mm) 0.5%
265/55R19 30.5″ (775 mm) 0.5%
265/60R18 30.5″ (775 mm) 0.5%
165/90R19 30.7″ (781 mm) 1.3%
305/45R20 30.8″ (782 mm) 1.4%
275/50R20 30.9″ (784 mm) 1.7%
275/55R19 30.9″ (785 mm) 1.8%
275/60R18 31″ (787 mm) 2.1%
235/70R18 31″ (787 mm) 2.1%
255/55R20 31″ (788 mm) 2.2%
255/60R19 31.1″ (789 mm) 2.3%
235/65R19 31.1″ (789 mm) 2.3%
255/65R18 31.1″ (789 mm) 2.3%
285/50R20 31.3″ (794 mm) 3%

Leave a Comment