Tire Size Calculator
Calculate tire sizes in inches or millimeters and find alternative sizes.
Inches
Millimeters
Results for 235/80R17 Tires
Diameter
31.8"
Width
9.3"
Sidewall
7.4"
Circumference
99.9"
Revs per mile
634
Alternate Tire Sizes
17"
16"
18"
19"
20"
21"
22"
23"
24"
Tire Size
Diameter
Width
Sidewall
Circumference
Revs per mile