Miles between Gaithersburg, MD and St John, IN

There are
661 mi
from Gaithersburg, MD to St John, IN

That's the driving distance. It would take 12 hours 18 mins to go from Gaithersburg, Maryland to St John, Indiana.

The flight distance (direct flight from Gaithersburg, MD to St John, IN) is 564.02 mi.

661 mi = 1,063.63 kms