There are 910.21 miles from Grafton to Otter in west direction and 1,074 miles (1,728.44 kilometers) by car, following the I-90 route.
Grafton and Otter are 17 hours 11 mins far apart, if you drive non-stop .
This is the fastest route from Grafton, WI to Otter, MT.
Please note the time difference between Grafton, WI and Otter, MT is 1 hour. The current time in Grafton is 5:59 am and the current time in Otter is 4:59 am.
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