There are
2,767 mi
from Gaithersburg, MD to Ripon, CA
That's the driving distance. It would take 2 days to go from Gaithersburg, Maryland to Ripon, California.
The flight distance (direct flight from Gaithersburg, MD to Ripon, CA) is 2,355.48 mi.
2,767 mi = 4,452.85 kms