There are
1,666 mi
from Gaithersburg, MD to Broomfield, CO
That's the driving distance. It would take 1 day 5 hours to go from Gaithersburg, Maryland to Broomfield, Colorado.
The flight distance (direct flight from Gaithersburg, MD to Broomfield, CO) is 1,480.93 mi.
1,666 mi = 2,680.76 kms