Tire Size Calculator
Calculate tire sizes in inches or millimeters and find alternative sizes.
Inches
Millimeters
Results for 185/45R17 Tires
Diameter
23.6"
Width
7.3"
Sidewall
3.3"
Circumference
74"
Revs per mile
857
Alternate Tire Sizes
17"
13"
14"
15"
16"
18"
Tire Size
Diameter
Width
Sidewall
Circumference
Revs per mile