Miles between Gaithersburg, MD and San Mateo, CA

There are
2,807 mi
from Gaithersburg, MD to San Mateo, CA

That's the driving distance. It would take 2 days 1 hour to go from Gaithersburg, Maryland to San Mateo, California.

The flight distance (direct flight from Gaithersburg, MD to San Mateo, CA) is 2,422.02 mi.

2,807 mi = 4,518.21 kms