There are
645 mi
from St Clair Shores, MI to Peekskill, NY
That's the driving distance. It would take 12 hours 14 mins to go from St Clair Shores, Michigan to Peekskill, New York.
The flight distance (direct flight from St Clair Shores, MI to Peekskill, NY) is 468.59 mi.
645 mi = 1,038.72 kms