255/40R20 Tire Size in Inches

255/40R20 is a metric tire size representation, which defines that the tires have a width of 255 mm, 40 is the aspect ratio and a rim diameter of 20 inches. In the imperial system the tire size 255/40R20 equates to a 28×10R20 that is commonly used in the automotive industry. So Converting 255/40R20 in inches the tires have a length of 28 inches, a width of 10 inches, a sidewall height of 4 inches and The number of complete resolutions made by the corresponding tire size is equal to 721 per mile with a circumference of 87.9 inches.

255/40R20 tire size in inches

255/40R20inchesmm
Tire Diameter28 inches712 mm
Tread Width10 inches255 mm
Rim Diameter20 inches508 mm
Sidewall Height4 inches102 mm
Circumference87.9 inches2236 mm
Revolutions721 per mile447 per km

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255/40R20 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 255/40R20 tires.

Tire Size Overall Diameter Difference
265/25R22 27.2″ (691 mm) -2.9%
305/30R20 27.2″ (692 mm) -2.8%
265/30R21 27.3″ (693 mm) -2.7%
155/60R20 27.3″ (694 mm) -2.5%
265/35R20 27.3″ (694 mm) -2.5%
225/30R22 27.4″ (695 mm) -2.4%
325/25R21 27.4″ (695 mm) -2.4%
145/65R20 27.4″ (696 mm) -2.2%
235/40R20 27.4″ (696 mm) -2.2%
235/35R21 27.4″ (697 mm) -2.1%
275/25R22 27.4″ (697 mm) -2.1%
315/30R20 27.5″ (698 mm) -2%
275/30R21 27.5″ (699 mm) -1.8%
275/35R20 27.6″ (700 mm) -1.7%
175/55R20 27.6″ (700 mm) -1.7%
235/30R22 27.6″ (701 mm) -1.5%
285/25R22 27.6″ (701 mm) -1.5%
215/45R20 27.6″ (702 mm) -1.4%
245/40R20 27.7″ (704 mm) -1.1%
325/30R20 27.7″ (704 mm) -1.1%
195/50R20 27.7″ (704 mm) -1.1%
245/35R21 27.8″ (705 mm) -1%
285/30R21 27.8″ (705 mm) -1%
165/60R20 27.8″ (706 mm) -0.8%
245/30R22 27.8″ (707 mm) -0.7%
295/25R22 27.8″ (707 mm) -0.7%
285/35R20 27.9″ (708 mm) -0.6%
335/30R20 28″ (710 mm) -0.3%
225/45R20 28″ (710 mm) -0.3%
155/65R20 28″ (710 mm) -0.3%
295/30R21 28″ (711 mm) -0.1%
255/35R21 28″ (711 mm) -0.1%
305/25R22 28″ (711 mm) -0.1%
355/25R21 28″ (711 mm) -0.1%
255/30R22 28.1″ (713 mm) 0.1%
295/35R20 28.1″ (714 mm) 0.3%
345/30R20 28.2″ (716 mm) 0.6%
305/30R21 28.2″ (717 mm) 0.7%
315/25R22 28.2″ (717 mm) 0.7%
265/35R21 28.3″ (719 mm) 1%
265/30R22 28.3″ (719 mm) 1%
235/45R20 28.3″ (720 mm) 1.1%
265/40R20 28.3″ (720 mm) 1.1%
305/35R20 28.4″ (722 mm) 1.4%
315/30R21 28.5″ (723 mm) 1.5%
275/30R22 28.5″ (725 mm) 1.8%
275/35R21 28.5″ (725 mm) 1.8%
335/25R22 28.6″ (727 mm) 2.1%
245/45R20 28.7″ (728 mm) 2.2%
315/35R20 28.7″ (728 mm) 2.2%
275/40R20 28.7″ (728 mm) 2.2%
325/30R21 28.7″ (729 mm) 2.4%
245/40R21 28.7″ (729 mm) 2.4%
285/30R22 28.8″ (731 mm) 2.7%
245/35R22 28.8″ (731 mm) 2.7%
285/35R21 28.9″ (733 mm) 2.9%

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