There are 103.99 miles from Fort Gratiot to Au Sable in northwest direction and 200 miles (321.87 kilometers) by car, following the US-23 N route.
Fort Gratiot and Au Sable are 3 hours 47 mins far apart, if you drive non-stop .
This is the fastest route from Fort Gratiot, MI to Au Sable, MI. The halfway point is Birch Run, MI.
Fort Gratiot, MI and Au Sable, MI are in the same time zone (EDT). Current time in both locations is 10:12 pm.
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