Tire Size Calculator Instructions:

  1. Enter your tire size information into the form above, click 'search'.
  2. A list of tire combinations will be generated, you can use the sliders to change the new tires wheel size as well as alter the allowed diameter difference.
  3. Click on one of the suggested tires to see a comparison between your current tire and the chosen one.
  4. That's it!

Current Tire Size   

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    Compare against a specific tire size.
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Summary: Use this calculator to see what would happen to your speedometer reading if you were to change the size of your tires and/or wheels. This calculator will also generate a list of possible alternate tires you could put on your vehicle. Most sites agree that you can replace your existing tires with ones of a different size, as long as the diameter of the new tire and wheel combination is within 3% +/- of the manufacturers recommended size. If you have an uncommon tire size this could potentially save you money.

For more information please read our Brief Guide to Tire Selection and our Aftermarket Rims Guide

Disclaimer: The information provided on this site is for informational purposes only. When replacing any parts on your vehicle that do not comply with your manufacturer`s recommendations, you should always consult a trained professional.