T155/85R18 in Inches

Tire size T155/85R18 refers to the tire size in numbers and letters such as the first number “155” indicates the tire width in millimeters, the second number “85” indicates the aspect ratio of the tire and the last number indicates the diameter of the tire. A T155/85R18 tire in inches can be described as a tire with a width of about 6.1 inches, a sidewall height of about 5.2 inches, and it fits on a 18-inch wheel.

Converting T155/85R18 in Inches

T155/85R18 inches mm
Tire Diameter 28.4 inches 721 mm
Tread Width 6.1 inches 155 mm
Rim Diameter 18 inches 457 mm
Sidewall Height 5.2 inches 132 mm
Circumference 89.2 inches 2264 mm
Revolutions 710 per mile 442 per km

Tire Size Calculator

The Tire Size Calculator is a convenient online tool that helps determine the correct tire dimensions for a vehicle, ensuring optimal performance and compatibility.

Tire Diameter
Tread Width
Rim Diameter
Sidewall Height
Circumference
Revolutions

T155/85R18 Alternate Tire Size

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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