Calculate your tire diameter, rim width, section width and revolutions per mile by entering the tire cross section, aspect ratio and wheel diameter values.
Tire Diameter (in inches)
Approx. Section Width (in inches)
Approx. Rim Width (in inches)
Revs per Mile
Please be advised: The accuracy of this calculator and
its applicability to your circumstances is not guaranteed. It's meant
to be used as an informational guide only. Always obtain professional
advice from qualified automotive professionals.