215/40R15 Tires

215/40R15 Conversion

When converted to inches, 215/40R15 is equivalent to 21.8x8.5R15.

215/40R15 tire has a section width of 8.5 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 3.4 inches (86 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 21.8 inches (553 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 68.5 inches (1736.4 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. 215/40R15 tire makes 925 revolutions per mile (576 revolutions per kilometer).

215/40R15 Section Width
8.5"
21.8"
215/40R15 Tire Side
Tire Circumference
68.5"
15"
3.4"
925 Revs/Mile
Metric Inches
Overall Diameter (Tire Height) 553 mm 21.8"
Tread Width 215 mm 8.5"
Rim Diameter 381 mm 15"
Sidewall Height 86 mm 3.4"
Circumference 1736.4 mm 68.5"
Revolutions 576 per km 925 per mile

215/40R15 Replacement Tire Sizes

Replacement tires have to be within 3% of the original tire's overall diameter. 215/40R15 tire can be replaced with 19 compatible tire sizes. Select optional plus size to see its specs.

Tire Size Overall Diameter Difference
165/40R16 21.2" (538 mm) -2.7%
115/70R15 21.4" (543 mm) -1.8%
185/45R15 21.5" (547 mm) -1.1%
165/50R15 21.5" (547 mm) -1.1%
245/35R15 21.8" (553 mm) 0%
165/45R16 21.8" (554 mm) 0.2%
215/35R16 21.9" (556 mm) 0.5%
195/45R15 21.9" (557 mm) 0.7%
175/50R15 21.9" (557 mm) 0.7%
125/70R15 21.9" (557 mm) 0.7%
195/40R16 22.1" (562 mm) 1.6%
165/55R15 22.2" (563 mm) 1.8%
165/40R17 22.2" (564 mm) 2%
205/45R15 22.2" (565 mm) 2.2%
185/50R15 22.3" (567 mm) 2.5%
155/60R15 22.3" (567 mm) 2.5%
115/70R16 22.4" (568 mm) 2.7%
135/60R16 22.4" (568 mm) 2.7%
145/65R15 22.4" (569 mm) 2.9%