225/65R18 Tire Size in Inches

225/65R18 is a metric tire size representation, which defines that the tires have a width of 225 mm, 65 is the aspect ratio and a rim diameter of 18 inches. In the imperial system the tire size 225/65R18 equates to a 29.5×8.9R18 that is commonly used in the automotive industry. So Converting 225/65R18 in inches the tires have a length of 29.5 inches, a width of 8.9 inches, a sidewall height of 5.7 inches and The number of complete resolutions made by the corresponding tire size is equal to 684 per mile with a circumference of 92.6 inches.

225/65R18 tire size in inches

225/65R18inchesmm
Tire Diameter29.5 inches749 mm
Tread Width8.9 inches225 mm
Rim Diameter18 inches457 mm
Sidewall Height5.7 inches146 mm
Circumference92.6 inches2352 mm
Revolutions684 per mile425 per km

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225/65R18 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 225/65R18 tires.

Tire Size Overall Diameter Difference
245/55R18 28.6″ (727 mm) -2.9%
225/60R18 28.6″ (727 mm) -2.9%
275/40R20 28.7″ (728 mm) -2.8%
245/45R20 28.7″ (728 mm) -2.8%
315/35R20 28.7″ (728 mm) -2.8%
245/50R19 28.7″ (729 mm) -2.7%
225/55R19 28.8″ (731 mm) -2.4%
275/45R19 28.8″ (731 mm) -2.4%
155/80R19 28.8″ (731 mm) -2.4%
305/45R18 28.8″ (731 mm) -2.4%
275/50R18 28.9″ (733 mm) -2.1%
315/40R19 28.9″ (735 mm) -1.9%
285/40R20 29″ (736 mm) -1.7%
325/35R20 29″ (736 mm) -1.7%
155/90R18 29″ (737 mm) -1.6%
175/80R18 29″ (737 mm) -1.6%
255/55R18 29″ (737 mm) -1.6%
255/45R20 29.1″ (738 mm) -1.5%
285/45R19 29.1″ (739 mm) -1.3%
255/50R19 29.1″ (739 mm) -1.3%
235/60R18 29.1″ (739 mm) -1.3%
145/80R20 29.1″ (740 mm) -1.2%
235/55R19 29.2″ (741 mm) -1.1%
285/50R18 29.3″ (743 mm) -0.8%
235/50R20 29.3″ (744 mm) -0.7%
295/40R20 29.3″ (744 mm) -0.7%
265/45R20 29.4″ (746 mm) -0.4%
325/45R18 29.5″ (749 mm) 0%
265/55R18 29.5″ (749 mm) 0%
265/50R19 29.5″ (749 mm) 0%
295/45R19 29.5″ (749 mm) 0%
245/60R18 29.6″ (751 mm) 0.3%
305/40R20 29.6″ (752 mm) 0.4%
245/55R19 29.6″ (753 mm) 0.5%
245/50R20 29.7″ (754 mm) 0.7%
165/90R18 29.7″ (755 mm) 0.8%
275/45R20 29.8″ (756 mm) 0.9%
275/50R19 29.9″ (759 mm) 1.3%
275/55R18 29.9″ (759 mm) 1.3%
175/80R19 30″ (763 mm) 1.9%
235/65R18 30″ (763 mm) 1.9%
255/60R18 30″ (763 mm) 1.9%
255/55R19 30″ (763 mm) 1.9%
285/45R20 30.1″ (764 mm) 2%
255/50R20 30.1″ (764 mm) 2%
235/60R19 30.1″ (765 mm) 2.1%
235/55R20 30.2″ (766 mm) 2.3%
285/55R18 30.4″ (771 mm) 2.9%

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