Tire Size Calculator
Calculate tire sizes in inches or millimeters and find alternative sizes.
Inches
Millimeters
Results for 185/55R16 Tires
Diameter
24"
Width
7.3"
Sidewall
4"
Circumference
75.4"
Revs per mile
840
Alternate Tire Sizes
16"
13"
14"
15"
17"
18"
19"
Tire Size
Diameter
Width
Sidewall
Circumference
Revs per mile