There are
493 mi
from St Clair Shores, MI to Centralia, IL
That's the driving distance. It would take 9 hours 33 mins to go from St Clair Shores, Michigan to Centralia, Illinois.
The flight distance (direct flight from St Clair Shores, MI to Centralia, IL) is 427.22 mi.
493 mi = 794.05 kms