There are
700 mi
from Gaithersburg, MD to Rolling Meadows, IL
That's the driving distance. It would take 13 hours 11 mins to go from Gaithersburg, Maryland to Rolling Meadows, Illinois.
The flight distance (direct flight from Gaithersburg, MD to Rolling Meadows, IL) is 601.85 mi.
700 mi = 1,127.09 kms