The results of this calculator are based on the mathematical equations of the sizes entered, not the actual tire specs provided by the tire manufacturers. Please refer to the guides supplied by manufacturers for exact specifications. Not for use with high flotation sizes, i.e. 31x10.50R-15.
Tire 1
Tire 2
Difference
Sidewall Height:
Section Width:
Overall Diameter:
Circumference:
Revs per mile:
(inches)
If your speedometer reads:
You're going approximately:
