Tire-Covers.com Tire Calculator 

Use this calculator to determine the tire diameter.
Round up any number that is over .50 to the next size. As in 30.65 would be a 31"
For further assistance see our other Tire Guide Page HERE

Tire Cross-Section  
Aspect Ratio  
Wheel Diameter  


Tire Diameter (in inches)

Approx. Section Width (in inches)

Approx. Rim Width (in inches)

Revs per Mile