Enter your Tire Width, Aspect Ratio, and Rim Diameter, then set your Fitment Preference to get your Recommended Rim Width — plus the Minimum and Maximum Width range so you know exactly how much wiggle room you're working with.
Recommended Rim Width
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Minimum Width
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Maximum Width
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Tire size is displayed on the sidewall as three numbers, like 225/45R17. The first number (225) is the width in millimeters, the second (45) is the profile percentage, and the third (17) is the rim diameter in inches.
Using a rim too narrow can cause tire sidewall bulging and poor handling, while a rim too wide can cause tire stretching, reduced sidewall protection, and potential tire damage.
Conservative fitment provides the safest range for everyday driving, while aggressive fitment allows for wider rims that may improve handling but could affect ride comfort and tire wear.
Yes, any width within the calculated range should provide safe fitment. The optimal width typically offers the best balance of performance, comfort, and tire wear.
Rim width affects tire shape and contact patch. Proper width ensures optimal tire performance, handling, and wear patterns. Too narrow or wide can compromise these characteristics.
While this calculator focuses on width compatibility with tire size, you should also verify that your chosen rim offset fits your vehicle's wheel wells and suspension clearances.