355/25R21 in Inches

Tire size 355/25R21 refers to the tire size in numbers and letters such as the first number “355” indicates the tire width in millimeters, the second number “25” indicates the aspect ratio of the tire and the last number indicates the diameter of the tire. A 355/25R21 tire in inches can be described as a tire with a width of about 14 inches, a sidewall height of about 3.5 inches, and it fits on a 21-inch wheel.

Converting 355/25R21 in Inches

355/25R21 inches mm
Tire Diameter 28 inches 711 mm
Tread Width 14 inches 355 mm
Rim Diameter 21 inches 533 mm
Sidewall Height 3.5 inches 89 mm
Circumference 87.9 inches 2233 mm
Revolutions 721 per mile 448 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

355/25R21 Alternate Tire Size

Tire Size Overall Diameter Difference
265/25R22 27.2″ (691 mm) -2.8%
265/30R21 27.3″ (693 mm) -2.5%
225/30R22 27.4″ (695 mm) -2.3%
325/25R21 27.4″ (695 mm) -2.3%
235/35R21 27.4″ (697 mm) -2%
275/25R22 27.4″ (697 mm) -2%
275/30R21 27.5″ (699 mm) -1.7%
285/25R22 27.6″ (701 mm) -1.4%
235/30R22 27.6″ (701 mm) -1.4%
245/35R21 27.8″ (705 mm) -0.8%
285/30R21 27.8″ (705 mm) -0.8%
245/30R22 27.8″ (707 mm) -0.6%
295/25R22 27.8″ (707 mm) -0.6%
295/30R21 28″ (711 mm) 0%
305/25R22 28″ (711 mm) 0%
255/35R21 28″ (711 mm) 0%
255/30R22 28.1″ (713 mm) 0.3%
265/25R23 28.2″ (716 mm) 0.7%
315/25R22 28.2″ (717 mm) 0.8%
305/30R21 28.2″ (717 mm) 0.8%
265/35R21 28.3″ (719 mm) 1.1%
265/30R22 28.3″ (719 mm) 1.1%
315/30R21 28.5″ (723 mm) 1.7%
275/35R21 28.5″ (725 mm) 2%
275/30R22 28.5″ (725 mm) 2%
335/25R22 28.6″ (727 mm) 2.3%
245/40R21 28.7″ (729 mm) 2.5%
325/30R21 28.7″ (729 mm) 2.5%
245/35R22 28.8″ (731 mm) 2.8%
285/30R22 28.8″ (731 mm) 2.8%

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