265/45R21 Tire Size in Inches

265/45R21 is a metric tire size representation, which defines that the tires have a width of 265 mm, 45 is the aspect ratio and a rim diameter of 21 inches. In the imperial system the tire size 265/45R21 equates to a 30.4×10.4R21 that is commonly used in the automotive industry. So Converting 265/45R21 in inches the tires have a length of 30.4 inches, a width of 10.4 inches, a sidewall height of 4.7 inches and The number of complete resolutions made by the corresponding tire size is equal to 663 per mile with a circumference of 95.5 inches.

265/45R21 tire size in inches

265/45R21inchesmm
Tire Diameter30.4 inches771 mm
Tread Width10.4 inches265 mm
Rim Diameter21 inches533 mm
Sidewall Height4.7 inches119 mm
Circumference95.5 inches2421 mm
Revolutions663 per mile413 per km

Tire Size Calculator

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265/45R21 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 265/45R21 tires.

Tire Size Overall Diameter Difference
315/30R22 29.5″ (749 mm) -2.9%
275/35R22 29.6″ (751 mm) -2.6%
315/35R21 29.6″ (753 mm) -2.3%
245/45R21 29.6″ (753 mm) -2.3%
275/40R21 29.6″ (753 mm) -2.3%
285/35R22 29.9″ (759 mm) -1.6%
285/40R21 30″ (761 mm) -1.3%
295/30R23 30″ (762 mm) -1.2%
255/40R22 30″ (763 mm) -1%
255/45R21 30″ (763 mm) -1%
295/35R22 30.1″ (765 mm) -0.8%
295/40R21 30.3″ (769 mm) -0.3%
265/40R22 30.4″ (771 mm) 0%
305/35R22 30.4″ (773 mm) 0.3%
315/35R22 30.7″ (779 mm) 1%
275/40R22 30.7″ (779 mm) 1%
325/30R23 30.7″ (780 mm) 1.2%
275/45R21 30.7″ (781 mm) 1.3%
285/35R23 30.9″ (784 mm) 1.7%
315/40R21 30.9″ (785 mm) 1.8%
325/35R22 31″ (787 mm) 2.1%
285/40R22 31″ (787 mm) 2.1%
285/45R21 31.1″ (789 mm) 2.3%
255/50R21 31.1″ (789 mm) 2.3%
255/45R22 31.1″ (789 mm) 2.3%
295/35R23 31.1″ (790 mm) 2.5%
325/40R21 31.2″ (793 mm) 2.9%

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