Tire Size Calculator
Calculate tire sizes in inches or millimeters and find alternative sizes.
Inches
Millimeters
Results for 155/70R13 Tires
Diameter
21.5"
Width
6.1"
Sidewall
4.3"
Circumference
67.6"
Revs per mile
937
Alternate Tire Sizes
13"
12"
14"
15"
16"
17"
Tire Size
Diameter
Width
Sidewall
Circumference
Revs per mile