There are
241 mi
from Youngstown, OH to St Clair Shores, MI
That's the driving distance. It would take 4 hours 36 mins to go from Youngstown, Ohio to St Clair Shores, Michigan.
The flight distance (direct flight from Youngstown, OH to St Clair Shores, MI) is 150.32 mi.
241 mi = 387.21 kms