Enter the following data -
Current Wheel Width - Your current wheel width
Current Wheel Offset - Your current wheel offset
New Wheel Width - Your new wheel width
New Wheel Offset - Your new wheel offset
Note: Often front wheel and rear wheel offsets are different. And
wheel offset is generally expressed in Millimeters.
Hit the SAMPLE button to see how some typical calculations will
look. RESET will clear out the form and the CALCULATE button
will do the work. If you find any problems let me know!