Miles between Gaithersburg, MD and Castle Rock, CO

There are
1,610 mi
from Gaithersburg, MD to Castle Rock, CO

That's the driving distance. It would take 1 day 5 hours to go from Gaithersburg, Maryland to Castle Rock, Colorado.

The flight distance (direct flight from Gaithersburg, MD to Castle Rock, CO) is 1,473.76 mi.

1,610 mi = 2,591.73 kms