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Enter Your Original Tire Size",[179,246,247],{},"Input the width (in millimeters), aspect ratio (as a percentage), and rim diameter (in inches) from your current tire's sidewall — for example, 225/45R17.",[241,249,251],{"id":250},"_2-enter-your-new-tire-size","2. Enter Your New Tire Size",[179,253,254],{},"Input the same three measurements for the tire size you're considering.",[241,256,258],{"id":257},"_3-compare-diameter-and-circumference","3. Compare Diameter and Circumference",[179,260,261],{},"The results table shows the diameter, circumference, and revolutions per mile for both tires side by side.",[241,263,265],{"id":264},"_4-check-the-speedometer-difference","4. 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