275/50R21 Tires

275/50R21 Conversion

When converted to inches, 275/50R21 is equivalent to 31.9x10.8R21.

275/50R21 tire has a section width of 10.8 inches which is the measurement of tire's width from its inner sidewall to its outer sidewall. Rim diameter of 21 inches represents the size of the wheel the tire can be mounted on. Sidewall height of 5.4 inches (138 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 31.9 inches (809 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 100.2 inches (2540.3 mm) is the outer perimeter of the tire. Tire revolutions indicate the number of times a tire revolves while it covers the distance in miles or kilometers. 275/50R21 tire makes 632 revolutions per mile (394 revolutions per kilometer).

275/50R21 Section Width
10.8"
31.9"
275/50R21 Tire Side
Tire Circumference
100.2"
21"
5.4"
632 Revs/Mile
Metric Inches
Overall Diameter (Tire Height) 809 mm 31.9"
Tread Width 275 mm 10.8"
Rim Diameter 533.4 mm 21"
Sidewall Height 138 mm 5.4"
Circumference 2540.3 mm 100.2"
Revolutions 394 per km 632 per mile

275/50R21 Replacement Tire Sizes

Replacement tires have to be within 3% of the original tire's overall diameter. 275/50R21 tire can be replaced with 23 compatible tire sizes. Select optional plus size to see its specs.

Tire Size Overall Diameter Difference
315/40R21 30.9" (785 mm) -3%
325/35R22 31" (787 mm) -2.7%
285/40R22 31" (787 mm) -2.7%
255/45R22 31.1" (789 mm) -2.5%
255/50R21 31.1" (789 mm) -2.5%
285/45R21 31.1" (789 mm) -2.5%
295/35R23 31.1" (790 mm) -2.3%
325/40R21 31.2" (793 mm) -2%
295/40R22 31.3" (795 mm) -1.7%
265/45R22 31.4" (797 mm) -1.5%
305/35R23 31.4" (798 mm) -1.4%
305/40R22 31.6" (803 mm) -0.7%
275/40R23 31.7" (804 mm) -0.6%
275/45R22 31.8" (807 mm) -0.2%
285/40R23 32" (812 mm) 0.4%
325/35R23 32" (812 mm) 0.4%
285/45R22 32.1" (815 mm) 0.7%
315/45R21 32.2" (817 mm) 1%
325/40R22 32.2" (819 mm) 1.2%
265/50R22 32.5" (825 mm) 2%
295/45R22 32.5" (825 mm) 2%
305/40R23 32.6" (828 mm) 2.3%
305/45R22 32.8" (833 mm) 3%