There are
2,604 mi
from Baldwin Park, CA to Gaithersburg, MD
That's the driving distance. It would take 1 day 22 hours to go from Baldwin Park, California to Gaithersburg, Maryland.
The flight distance (direct flight from Baldwin Park, CA to Gaithersburg, MD) is 2,268.12 mi.
2,604 mi = 3.22 kms