Tire Size Calculators
Use these calculator tools to compare tire sizes, find differences in speed, convert between metric/standard, and more!
These calculators have been replaced by the comprehensive calculator above. It is recommended that you use the comprehensive comparison calculator instead of those below. The folowing two calculators are no longer necessary and are only kept here for historical purposes.
If you install new tires that are of a different size than your stock set, you need to check your speed! A different size of tires can give you inaccurate readings on your speedometer. Use this tool to find the speed difference!
This calculator can take a metric tire size and convert it to inches....or it can take a standard U.S. imperial (inches) tire size and convert it to the metric system. Click the link above to start converting!