Miles between Frederick, MD and Dyer, IN

There are
638 mi
from Frederick, MD to Dyer, IN

That's the driving distance. It would take 11 hours 51 mins to go from Frederick, Maryland to Dyer, Indiana.

The flight distance (direct flight from Frederick, MD to Dyer, IN) is 550.31 mi.

638 mi = 1,026.68 kms