Wheel Performance of Florida

This tool is desinged to determine the tire diameter and number of revolutions per mile for a given tire size.
		Tire Cross-Section
		Aspect Ratio
		Wheel Diameter

		Tire Diameter (in inches)
		Approx. Section Width (in inches)
		Approx. Rim Width (in inches)
		Revs per Mile

Plus Sizing Information

Plus sizing is one of the easiest ways to achieve enhanced performance and improve the appearance of your vehicle. In the example above, a 15x7 wheel with a 205/65R-15 tire is considered the O.E. (original equipment) size. Converting to a plus 1 size would mean increasing the wheel diameter by 1" (16x7.5) and selecting an appropriate tire to fit (225/55R-16). Likewise, moving to a plus 2 fitment would result in a 17x8 wheel and a 245/45R-17 tire. It is important to note that although the wheel diameter is increasing, the overall diameter of the tire remains consistent. As a matter of fact, this method typically maintains the overall diameter of the tire within +/- .04 inches. This is crucial to preserving the speedometer reading and gear ratio. Consult your Performance Wheel sales rep to ensure proper fitment.

Legal Disclaimer: 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.