There are 656.17 miles from Tony to Dewey in southwest direction and 812 miles (1,306.79 kilometers) by car, following the I-90 W route.
Tony and Dewey are 12 hours 48 mins far apart, if you drive non-stop .
This is the fastest route from Tony, WI to Dewey, SD.
Please note the time difference between Tony, WI and Dewey, SD is 1 hour. The current time in Tony is 10:59 am and the current time in Dewey is 9:59 am.
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