285/35R21 in Inches

Tire size 285/35R21 refers to the tire size in numbers and letters such as the first number “285” indicates the tire width in millimeters, the second number “35” indicates the aspect ratio of the tire and the last number indicates the diameter of the tire. A 285/35R21 tire in inches can be described as a tire with a width of about 11.2 inches, a sidewall height of about 3.9 inches, and it fits on a 21-inch wheel.

Converting 285/35R21 in Inches

285/35R21 inches mm
Tire Diameter 28.9 inches 733 mm
Tread Width 11.2 inches 285 mm
Rim Diameter 21 inches 533 mm
Sidewall Height 3.9 inches 100 mm
Circumference 90.7 inches 2302 mm
Revolutions 699 per mile 434 per km

Tire Size Calculator

The Tire Size Calculator is a convenient online tool that helps determine the correct tire dimensions for a vehicle, ensuring optimal performance and compatibility.

Tire Diameter
Tread Width
Rim Diameter
Sidewall Height
Circumference
Revolutions

285/35R21 Alternate Tire Size

Tire Size Overall Diameter Difference
255/30R22 28.1″ (713 mm) -2.7%
265/25R23 28.2″ (716 mm) -2.3%
305/30R21 28.2″ (717 mm) -2.2%
315/25R22 28.2″ (717 mm) -2.2%
265/35R21 28.3″ (719 mm) -1.9%
265/30R22 28.3″ (719 mm) -1.9%
315/30R21 28.5″ (723 mm) -1.4%
275/30R22 28.5″ (725 mm) -1.1%
275/35R21 28.5″ (725 mm) -1.1%
335/25R22 28.6″ (727 mm) -0.8%
325/30R21 28.7″ (729 mm) -0.5%
245/40R21 28.7″ (729 mm) -0.5%
285/30R22 28.8″ (731 mm) -0.3%
245/35R22 28.8″ (731 mm) -0.3%
305/25R23 29″ (736 mm) 0.4%
255/35R22 29″ (737 mm) 0.5%
295/30R22 29″ (737 mm) 0.5%
255/40R21 29″ (737 mm) 0.5%
295/35R21 29.1″ (739 mm) 0.8%
315/25R23 29.2″ (742 mm) 1.2%
305/30R22 29.3″ (743 mm) 1.4%
235/45R21 29.3″ (745 mm) 1.6%
265/40R21 29.3″ (745 mm) 1.6%
265/35R22 29.3″ (745 mm) 1.6%
305/35R21 29.4″ (747 mm) 1.9%
315/30R22 29.5″ (749 mm) 2.2%
275/35R22 29.6″ (751 mm) 2.5%
315/35R21 29.6″ (753 mm) 2.7%
245/45R21 29.6″ (753 mm) 2.7%
275/40R21 29.6″ (753 mm) 2.7%

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