315/20R30 Tires

315/20R30 Conversion

When converted to inches, 315/20R30 is equivalent to 35x12.4R30.

315/20R30 tire has a section width of 12.4 inches which is the measurement of tire's width from its inner sidewall to its outer sidewall. Rim diameter of 30 inches represents the size of the wheel the tire can be mounted on. Sidewall height of 2.5 inches (63 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 35 inches (888 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 109.9 inches (2788.3 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. 315/20R30 tire makes 577 revolutions per mile (359 revolutions per kilometer).

315/20R30 Section Width
12.4"
35"
315/20R30 Tire Side
Tire Circumference
109.9"
30"
2.5"
577 Revs/Mile
Metric Inches
Overall Diameter (Tire Height) 888 mm 35"
Tread Width 315 mm 12.4"
Rim Diameter 762 mm 30"
Sidewall Height 63 mm 2.5"
Circumference 2788.3 mm 109.9"
Revolutions 359 per km 577 per mile

315/20R30 Replacement Tire Sizes

Replacement tires have to be within 3% of the original tire's overall diameter. 315/20R30 tire can be replaced with 1 compatible tire size. Select optional plus size to see its specs.

Tire Size Overall Diameter Difference
275/25R30 35.4" (900 mm) 1.4%