There are 1,267.85 miles from Grafton to Potomac in west direction and 1,583 miles (2,547.59 kilometers) by car, following the I-90 route.
Grafton and Potomac are 22 hours 24 mins far apart, if you drive non-stop .
This is the fastest route from Grafton, WI to Potomac, MT. The halfway point is Kadoka, SD.
Please note the time difference between Grafton, WI and Potomac, MT is 1 hour. The current time in Grafton is 1:20 am and the current time in Potomac is 12:20 am.
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