Tire Sizes Calculator



Tire Diameter
Section Width:
Aspect Ratio:
Rim Diameter:



Effective Ratio
Old Tire Diameter:
New Tire Diameter:
Original Ratio:

 


Equivalent Ratio
Old Tire Diameter:
New Tire Diameter:
Original Ratio:



Actual MPH
Old Tire Diameter:
New Tire Diameter:
Indicated MPH:

 


Indicated MPH
Old Tire Diameter:
New Tire Diameter:
Actual MPH: