Tire size calculator

Current tire size

/ R

New tire size

/ R

Tire size conversion

Old New Diff %
Diameter - - - -
Width - - - -
Sidewall Height - - - -
Rim Diameter - - - -
Ground Clearance

Whelcome to our handy wheel and tire size calculator!

Put your current tire size into the first form, then put your desired size into the second form and you will get the difference between new and tire size.

Our calc could help decide whether tires and wheel will fit onto your car.