285/40R20 Tire Size in Inches

285/40R20 is a metric tire size representation, which defines that the tires have a width of 285 mm, 40 is the aspect ratio and a rim diameter of 20 inches. In the imperial system the tire size 285/40R20 equates to a 29×11.2R20 that is commonly used in the automotive industry. So Converting 285/40R20 in inches the tires have a length of 29 inches, a width of 11.2 inches, a sidewall height of 4.5 inches and The number of complete resolutions made by the corresponding tire size is equal to 695 per mile with a circumference of 91.1 inches.

285/40R20 tire size in inches

285/40R20inchesmm
Tire Diameter29 inches736 mm
Tread Width11.2 inches285 mm
Rim Diameter20 inches508 mm
Sidewall Height4.5 inches114 mm
Circumference91.1 inches2311 mm
Revolutions695 per mile433 per km

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285/40R20 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 285/40R20 tires.

Tire Size Overall Diameter Difference
295/35R20 28.1″ (714 mm) -3%
345/30R20 28.2″ (716 mm) -2.7%
305/30R21 28.2″ (717 mm) -2.6%
315/25R22 28.2″ (717 mm) -2.6%
265/35R21 28.3″ (719 mm) -2.3%
265/30R22 28.3″ (719 mm) -2.3%
265/40R20 28.3″ (720 mm) -2.2%
235/45R20 28.3″ (720 mm) -2.2%
305/35R20 28.4″ (722 mm) -1.9%
315/30R21 28.5″ (723 mm) -1.8%
275/30R22 28.5″ (725 mm) -1.5%
275/35R21 28.5″ (725 mm) -1.5%
335/25R22 28.6″ (727 mm) -1.2%
245/45R20 28.7″ (728 mm) -1.1%
315/35R20 28.7″ (728 mm) -1.1%
275/40R20 28.7″ (728 mm) -1.1%
245/40R21 28.7″ (729 mm) -1%
325/30R21 28.7″ (729 mm) -1%
245/35R22 28.8″ (731 mm) -0.7%
285/30R22 28.8″ (731 mm) -0.7%
285/35R21 28.9″ (733 mm) -0.4%
325/35R20 29″ (736 mm) 0%
295/30R22 29″ (737 mm) 0.1%
255/35R22 29″ (737 mm) 0.1%
255/40R21 29″ (737 mm) 0.1%
255/45R20 29.1″ (738 mm) 0.3%
295/35R21 29.1″ (739 mm) 0.4%
145/80R20 29.1″ (740 mm) 0.5%
305/30R22 29.3″ (743 mm) 1%
235/50R20 29.3″ (744 mm) 1.1%
295/40R20 29.3″ (744 mm) 1.1%
265/40R21 29.3″ (745 mm) 1.2%
265/35R22 29.3″ (745 mm) 1.2%
235/45R21 29.3″ (745 mm) 1.2%
265/45R20 29.4″ (746 mm) 1.4%
305/35R21 29.4″ (747 mm) 1.5%
315/30R22 29.5″ (749 mm) 1.8%
275/35R22 29.6″ (751 mm) 2%
305/40R20 29.6″ (752 mm) 2.2%
315/35R21 29.6″ (753 mm) 2.3%
245/45R21 29.6″ (753 mm) 2.3%
275/40R21 29.6″ (753 mm) 2.3%
245/50R20 29.7″ (754 mm) 2.4%
275/45R20 29.8″ (756 mm) 2.7%

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