Calculate Your Cars Rear End Ratio

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Rear End Ratio Calculator

Car Model : 
Vehicle's Speed :  (MPH)
Vehicle's RPM : (@ that speed)
 Vehicle's Tire Diameter :  (in inches)

This is an aproximation of your Rear End Ratio, but if someone tells you a car has a 4.10:1 ratio and our result is 2.73:1.
You better ask more questions!

(C)2001 Adapted from the Horsepower Calculator - Fast Wheels Net Magazine