275/25R21 in Inches

Tire size 275/25R21 refers to the tire size in numbers and letters such as the first number “275” 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 275/25R21 tire in inches can be described as a tire with a width of about 10.8 inches, a sidewall height of about 2.7 inches, and it fits on a 21-inch wheel.

Converting 275/25R21 in Inches

275/25R21 inches mm
Tire Diameter 26.4 inches 671 mm
Tread Width 10.8 inches 275 mm
Rim Diameter 21 inches 533 mm
Sidewall Height 2.7 inches 69 mm
Circumference 82.9 inches 2107 mm
Revolutions 764 per mile 475 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

275/25R21 Alternate Tire Size

Tire Size Overall Diameter Difference
235/30R21 26.6″ (675 mm) 0.6%
245/30R21 26.8″ (681 mm) 1.5%
295/25R21 26.8″ (681 mm) 1.5%
375/20R21 26.9″ (683 mm) 1.8%
305/25R21 27″ (685 mm) 2.1%
255/30R21 27″ (687 mm) 2.4%
265/25R22 27.2″ (691 mm) 3%

Leave a Comment