Tire Size Calculator
Calculate tire sizes in inches or millimeters and find alternative sizes.
Inches
Millimeters
Results for 215/80R15 Tires
Diameter
28.5"
Width
8.5"
Sidewall
6.8"
Circumference
89.6"
Revs per mile
707
Alternate Tire Sizes
15"
16"
17"
18"
19"
20"
21"
22"
23"
Tire Size
Diameter
Width
Sidewall
Circumference
Revs per mile