255/45R20 Tire Size in Inches

255/45R20 is a metric tire size representation, which defines that the tires have a width of 255 mm, 45 is the aspect ratio and a rim diameter of 20 inches. In the imperial system the tire size 255/45R20 equates to a 29.1×10R20 that is commonly used in the automotive industry. So Converting 255/45R20 in inches the tires have a length of 29.1 inches, a width of 10 inches, a sidewall height of 4.5 inches and The number of complete resolutions made by the corresponding tire size is equal to 693 per mile with a circumference of 91.4 inches.

255/45R20 tire size in inches

255/45R20inchesmm
Tire Diameter29.1 inches738 mm
Tread Width10 inches255 mm
Rim Diameter20 inches508 mm
Sidewall Height4.5 inches115 mm
Circumference91.4 inches2317 mm
Revolutions693 per mile432 per km

Tire Size Calculator

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255/45R20 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 255/45R20 tires.

Tire Size Overall Diameter Difference
345/30R20 28.2″ (716 mm) -3%
315/25R22 28.2″ (717 mm) -2.8%
305/30R21 28.2″ (717 mm) -2.8%
265/30R22 28.3″ (719 mm) -2.6%
265/35R21 28.3″ (719 mm) -2.6%
265/40R20 28.3″ (720 mm) -2.4%
235/45R20 28.3″ (720 mm) -2.4%
305/35R20 28.4″ (722 mm) -2.2%
315/30R21 28.5″ (723 mm) -2%
275/35R21 28.5″ (725 mm) -1.8%
275/30R22 28.5″ (725 mm) -1.8%
335/25R22 28.6″ (727 mm) -1.5%
245/45R20 28.7″ (728 mm) -1.4%
315/35R20 28.7″ (728 mm) -1.4%
275/40R20 28.7″ (728 mm) -1.4%
245/40R21 28.7″ (729 mm) -1.2%
325/30R21 28.7″ (729 mm) -1.2%
245/35R22 28.8″ (731 mm) -0.9%
285/30R22 28.8″ (731 mm) -0.9%
285/35R21 28.9″ (733 mm) -0.7%
285/40R20 29″ (736 mm) -0.3%
325/35R20 29″ (736 mm) -0.3%
255/40R21 29″ (737 mm) -0.1%
295/30R22 29″ (737 mm) -0.1%
255/35R22 29″ (737 mm) -0.1%
295/35R21 29.1″ (739 mm) 0.1%
145/80R20 29.1″ (740 mm) 0.3%
305/30R22 29.3″ (743 mm) 0.7%
235/50R20 29.3″ (744 mm) 0.8%
295/40R20 29.3″ (744 mm) 0.8%
235/45R21 29.3″ (745 mm) 0.9%
265/35R22 29.3″ (745 mm) 0.9%
265/40R21 29.3″ (745 mm) 0.9%
265/45R20 29.4″ (746 mm) 1.1%
305/35R21 29.4″ (747 mm) 1.2%
315/30R22 29.5″ (749 mm) 1.5%
275/35R22 29.6″ (751 mm) 1.8%
305/40R20 29.6″ (752 mm) 1.9%
315/35R21 29.6″ (753 mm) 2%
245/45R21 29.6″ (753 mm) 2%
275/40R21 29.6″ (753 mm) 2%
245/50R20 29.7″ (754 mm) 2.2%
275/45R20 29.8″ (756 mm) 2.4%
285/35R22 29.9″ (759 mm) 2.8%

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