Tire Size Calculator
Calculate tire sizes in inches or millimeters and find alternative sizes.
Inches
Millimeters
Results for 225/80R15 Tires
Diameter
29.2"
Width
8.9"
Sidewall
7.1"
Circumference
91.6"
Revs per mile
692
Alternate Tire Sizes
15"
16"
17"
18"
19"
20"
21"
22"
23"
24"
Tire Size
Diameter
Width
Sidewall
Circumference
Revs per mile