P305/45R18 Tire Size in Inches

P305/45R18 is a metric tire size representation, which defines that the tires have a width of 305 mm, 45 is the aspect ratio and a rim diameter of 18 inches. In the imperial system the tire size P305/45R18 equates to a 28.8×12R18 that is commonly used in the automotive industry. So Converting P305/45R18 in inches the tires have a length of 28.8 inches, a width of 12 inches, a sidewall height of 5.4 inches and The number of complete resolutions made by the corresponding tire size is equal to 701 per mile with a circumference of 90.4 inches.

P305/45R18 tire size in inches

P305/45R18inchesmm
Tire Diameter28.8 inches731 mm
Tread Width12 inches305 mm
Rim Diameter18 inches457 mm
Sidewall Height5.4 inches137 mm
Circumference90.4 inches2295 mm
Revolutions701 per mile436 per km

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P305/45R18 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 P305/45R18 tires.

Tire Size Overall Diameter Difference
225/45R20 28″ (710 mm) -2.9%
155/65R20 28″ (710 mm) -2.9%
335/30R20 28″ (710 mm) -2.9%
285/40R19 28″ (711 mm) -2.7%
255/40R20 28″ (712 mm) -2.6%
255/45R19 28.1″ (713 mm) -2.5%
255/50R18 28.1″ (713 mm) -2.5%
285/45R18 28.1″ (713 mm) -2.5%
295/35R20 28.1″ (714 mm) -2.3%
145/80R19 28.1″ (715 mm) -2.2%
235/55R18 28.1″ (715 mm) -2.2%
345/30R20 28.2″ (716 mm) -2.1%
235/50R19 28.3″ (719 mm) -1.6%
295/40R19 28.3″ (719 mm) -1.6%
265/40R20 28.3″ (720 mm) -1.5%
235/45R20 28.3″ (720 mm) -1.5%
155/85R18 28.4″ (721 mm) -1.4%
265/45R19 28.4″ (721 mm) -1.4%
305/35R20 28.4″ (722 mm) -1.2%
265/50R18 28.5″ (723 mm) -1.1%
295/45R18 28.5″ (723 mm) -1.1%
345/35R19 28.5″ (725 mm) -0.8%
225/60R18 28.6″ (727 mm) -0.5%
245/55R18 28.6″ (727 mm) -0.5%
315/35R20 28.7″ (728 mm) -0.4%
245/45R20 28.7″ (728 mm) -0.4%
275/40R20 28.7″ (728 mm) -0.4%
245/50R19 28.7″ (729 mm) -0.3%
225/55R19 28.8″ (731 mm) 0%
275/45R19 28.8″ (731 mm) 0%
155/80R19 28.8″ (731 mm) 0%
275/50R18 28.9″ (733 mm) 0.3%
315/40R19 28.9″ (735 mm) 0.5%
285/40R20 29″ (736 mm) 0.7%
325/35R20 29″ (736 mm) 0.7%
155/90R18 29″ (737 mm) 0.8%
255/55R18 29″ (737 mm) 0.8%
175/80R18 29″ (737 mm) 0.8%
255/45R20 29.1″ (738 mm) 1%
255/50R19 29.1″ (739 mm) 1.1%
235/60R18 29.1″ (739 mm) 1.1%
285/45R19 29.1″ (739 mm) 1.1%
145/80R20 29.1″ (740 mm) 1.2%
235/55R19 29.2″ (741 mm) 1.4%
285/50R18 29.3″ (743 mm) 1.6%
235/50R20 29.3″ (744 mm) 1.8%
295/40R20 29.3″ (744 mm) 1.8%
265/45R20 29.4″ (746 mm) 2.1%
295/45R19 29.5″ (749 mm) 2.5%
225/65R18 29.5″ (749 mm) 2.5%
325/45R18 29.5″ (749 mm) 2.5%
265/50R19 29.5″ (749 mm) 2.5%
265/55R18 29.5″ (749 mm) 2.5%
245/60R18 29.6″ (751 mm) 2.7%
305/40R20 29.6″ (752 mm) 2.9%

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