305/40R22 Tires

305/40R22 Conversion

When converted to inches, 305/40R22 is equivalent to 31.6x12R22.

305/40R22 tire has a section width of 12 inches which is the measurement of tire's width from its inner sidewall to its outer sidewall. Rim diameter of 22 inches represents the size of the wheel the tire can be mounted on. Sidewall height of 4.8 inches (122 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 31.6 inches (803 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 99.2 inches (2521.4 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. 305/40R22 tire makes 639 revolutions per mile (397 revolutions per kilometer).

305/40R22 Section Width
12"
31.6"
305/40R22 Tire Side
Tire Circumference
99.2"
22"
4.8"
639 Revs/Mile
Metric Inches
Overall Diameter (Tire Height) 803 mm 31.6"
Tread Width 305 mm 12"
Rim Diameter 558.8 mm 22"
Sidewall Height 122 mm 4.8"
Circumference 2521.4 mm 99.2"
Revolutions 397 per km 639 per mile

305/40R22 Replacement Tire Sizes

Replacement tires have to be within 3% of the original tire's overall diameter. 305/40R22 tire can be replaced with 28 compatible tire sizes. Select optional plus size to see its specs.

Tire Size Overall Diameter Difference
275/40R22 30.7" (779 mm) -3%
315/35R22 30.7" (779 mm) -3%
325/30R23 30.7" (780 mm) -2.9%
285/30R24 30.8" (782 mm) -2.6%
285/35R23 30.9" (784 mm) -2.4%
325/35R22 31" (787 mm) -2%
285/40R22 31" (787 mm) -2%
295/30R24 31" (788 mm) -1.9%
355/25R24 31" (788 mm) -1.9%
255/45R22 31.1" (789 mm) -1.7%
295/35R23 31.1" (790 mm) -1.6%
295/40R22 31.3" (795 mm) -1%
265/45R22 31.4" (797 mm) -0.7%
305/35R23 31.4" (798 mm) -0.6%
315/30R24 31.5" (800 mm) -0.4%
275/40R23 31.7" (804 mm) 0.1%
275/45R22 31.8" (807 mm) 0.5%
285/35R24 31.9" (810 mm) 0.9%
325/35R23 32" (812 mm) 1.1%
335/30R24 32" (812 mm) 1.1%
405/25R24 32" (812 mm) 1.1%
285/40R23 32" (812 mm) 1.1%
285/45R22 32.1" (815 mm) 1.5%
295/35R24 32.1" (816 mm) 1.6%
325/40R22 32.2" (819 mm) 2%
305/35R24 32.4" (824 mm) 2.6%
295/45R22 32.5" (825 mm) 2.7%
265/50R22 32.5" (825 mm) 2.7%