Tire Size Calculator
Calculate tire sizes in inches or millimeters and find alternative sizes.
Inches
Millimeters
Results for 225/55R16 Tires
Diameter
25.7"
Width
8.9"
Sidewall
4.9"
Circumference
80.8"
Revs per mile
784
Alternate Tire Sizes
16"
14"
15"
17"
18"
19"
20"
21"
Tire Size
Diameter
Width
Sidewall
Circumference
Revs per mile