T155/85R18 Tire Size in Inches

T155/85R18 is a metric tire size representation, which defines that the tires have a width of 155 mm, 85 is the aspect ratio and a rim diameter of 18 inches. In the imperial system the tire size T155/85R18 equates to a 28.4×6.1R18 that is commonly used in the automotive industry. So Converting T155/85R18 in inches the tires have a length of 28.4 inches, a width of 6.1 inches, a sidewall height of 5.2 inches and The number of complete resolutions made by the corresponding tire size is equal to 710 per mile with a circumference of 89.2 inches.

T155/85R18 tire size in inches

T155/85R18inchesmm
Tire Diameter28.4 inches721 mm
Tread Width6.1 inches155 mm
Rim Diameter18 inches457 mm
Sidewall Height5.2 inches132 mm
Circumference89.2 inches2264 mm
Revolutions710 per mile442 per km

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T155/85R18 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 T155/85R18 tires.

Tire Size Overall Diameter Difference
175/55R20 27.6″ (700 mm) -2.9%
275/35R20 27.6″ (700 mm) -2.9%
305/40R18 27.6″ (701 mm) -2.8%
155/70R19 27.6″ (701 mm) -2.8%
215/45R20 27.6″ (702 mm) -2.6%
275/40R19 27.7″ (703 mm) -2.5%
205/60R18 27.7″ (703 mm) -2.5%
315/35R19 27.7″ (703 mm) -2.5%
245/45R19 27.7″ (703 mm) -2.5%
245/50R18 27.7″ (703 mm) -2.5%
145/85R18 27.7″ (703 mm) -2.5%
195/50R20 27.7″ (704 mm) -2.4%
325/30R20 27.7″ (704 mm) -2.4%
245/40R20 27.7″ (704 mm) -2.4%
275/45R18 27.8″ (705 mm) -2.2%
155/80R18 27.8″ (705 mm) -2.2%
225/55R18 27.8″ (705 mm) -2.2%
165/60R20 27.8″ (706 mm) -2.1%
285/35R20 27.9″ (708 mm) -1.8%
315/40R18 27.9″ (709 mm) -1.7%
155/65R20 28″ (710 mm) -1.5%
225/45R20 28″ (710 mm) -1.5%
335/30R20 28″ (710 mm) -1.5%
285/40R19 28″ (711 mm) -1.4%
255/40R20 28″ (712 mm) -1.2%
255/50R18 28.1″ (713 mm) -1.1%
255/45R19 28.1″ (713 mm) -1.1%
285/45R18 28.1″ (713 mm) -1.1%
295/35R20 28.1″ (714 mm) -1%
145/80R19 28.1″ (715 mm) -0.8%
235/55R18 28.1″ (715 mm) -0.8%
345/30R20 28.2″ (716 mm) -0.7%
295/40R19 28.3″ (719 mm) -0.3%
235/50R19 28.3″ (719 mm) -0.3%
235/45R20 28.3″ (720 mm) -0.1%
265/40R20 28.3″ (720 mm) -0.1%
265/45R19 28.4″ (721 mm) 0%
305/35R20 28.4″ (722 mm) 0.1%
265/50R18 28.5″ (723 mm) 0.3%
295/45R18 28.5″ (723 mm) 0.3%
345/35R19 28.5″ (725 mm) 0.6%
245/55R18 28.6″ (727 mm) 0.8%
225/60R18 28.6″ (727 mm) 0.8%
315/35R20 28.7″ (728 mm) 1%
275/40R20 28.7″ (728 mm) 1%
245/45R20 28.7″ (728 mm) 1%
245/50R19 28.7″ (729 mm) 1.1%
225/55R19 28.8″ (731 mm) 1.4%
155/80R19 28.8″ (731 mm) 1.4%
275/45R19 28.8″ (731 mm) 1.4%
305/45R18 28.8″ (731 mm) 1.4%
275/50R18 28.9″ (733 mm) 1.7%
315/40R19 28.9″ (735 mm) 1.9%
325/35R20 29″ (736 mm) 2.1%
285/40R20 29″ (736 mm) 2.1%
155/90R18 29″ (737 mm) 2.2%
255/55R18 29″ (737 mm) 2.2%
175/80R18 29″ (737 mm) 2.2%
255/45R20 29.1″ (738 mm) 2.4%
255/50R19 29.1″ (739 mm) 2.5%
285/45R19 29.1″ (739 mm) 2.5%
235/60R18 29.1″ (739 mm) 2.5%
145/80R20 29.1″ (740 mm) 2.6%
235/55R19 29.2″ (741 mm) 2.8%

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