115/70R15 Tires

115/70R15 Conversion

When converted to inches, 115/70R15 is equivalent to 21.4x4.5R15.

115/70R15 tire has a section width of 4.5 inches which is the measurement of tire's width from its inner sidewall to its outer sidewall. Rim diameter of 15 inches represents the size of the wheel the tire can be mounted on. Sidewall height of 3.2 inches (81 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 21.4 inches (543 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 67.2 inches (1705 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. 115/70R15 tire makes 943 revolutions per mile (587 revolutions per kilometer).

115/70R15 Section Width
4.5"
21.4"
115/70R15 Tire Side
Tire Circumference
67.2"
15"
3.2"
943 Revs/Mile
Metric Inches
Overall Diameter (Tire Height) 543 mm 21.4"
Tread Width 115 mm 4.5"
Rim Diameter 381 mm 15"
Sidewall Height 81 mm 3.2"
Circumference 1705 mm 67.2"
Revolutions 587 per km 943 per mile

115/70R15 Replacement Tire Sizes

Replacement tires have to be within 3% of the original tire's overall diameter. 115/70R15 tire can be replaced with 12 compatible tire sizes. Select optional plus size to see its specs.

Tire Size Overall Diameter Difference
105/70R15 20.8" (529 mm) -2.6%
165/45R15 20.8" (529 mm) -2.6%
165/40R16 21.2" (538 mm) -0.9%
185/45R15 21.5" (547 mm) 0.7%
165/50R15 21.5" (547 mm) 0.7%
215/40R15 21.8" (553 mm) 1.8%
245/35R15 21.8" (553 mm) 1.8%
165/45R16 21.8" (554 mm) 2%
215/35R16 21.9" (556 mm) 2.4%
195/45R15 21.9" (557 mm) 2.6%
125/70R15 21.9" (557 mm) 2.6%
175/50R15 21.9" (557 mm) 2.6%