305/40R23 Tires

305/40R23 Conversion

When converted to inches, 305/40R23 is equivalent to 32.6x12R23.

305/40R23 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 23 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 32.6 inches (828 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 102.4 inches (2599.9 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. 305/40R23 tire makes 619 revolutions per mile (385 revolutions per kilometer).

305/40R23 Section Width
12"
32.6"
305/40R23 Tire Side
Tire Circumference
102.4"
23"
4.8"
619 Revs/Mile
Metric Inches
Overall Diameter (Tire Height) 828 mm 32.6"
Tread Width 305 mm 12"
Rim Diameter 584.2 mm 23"
Sidewall Height 122 mm 4.8"
Circumference 2599.9 mm 102.4"
Revolutions 385 per km 619 per mile

305/40R23 Replacement Tire Sizes

Replacement tires have to be within 3% of the original tire's overall diameter. 305/40R23 tire can be replaced with 11 compatible tire sizes. Select optional plus size to see its specs.

Tire Size Overall Diameter Difference
275/40R23 31.7" (804 mm) -2.9%
285/35R24 31.9" (810 mm) -2.2%
335/30R24 32" (812 mm) -1.9%
325/35R23 32" (812 mm) -1.9%
405/25R24 32" (812 mm) -1.9%
285/40R23 32" (812 mm) -1.9%
295/35R24 32.1" (816 mm) -1.4%
305/35R24 32.4" (824 mm) -0.5%
315/35R24 32.7" (830 mm) 0.2%
285/40R24 33" (838 mm) 1.2%
295/40R24 33.3" (846 mm) 2.2%