There are
2,620 mi
from Norwalk, CA to Gaithersburg, MD
That's the driving distance. It would take 1 day 23 hours to go from Norwalk, California to Gaithersburg, Maryland.
The flight distance (direct flight from Norwalk, CA to Gaithersburg, MD) is 2,279.13 mi.
2,620 mi = 3.22 kms