Select a car from the pre-defined list or enter/adjust the values below then click "Calculate!"
*A "fudge factor" is applied by default to account for the slight non-roundness of tires in contact with the ground. You can disable this by de-selecting the "Use Fudge" check box.
As much as I'd love to keep this calculator always up-to-date with new (and old) car information, I'm only one person and there are only 24 hours in the day.