Miles between Gaithersburg, MD and Simi Valley, CA

There are
2,635 mi
from Gaithersburg, MD to Simi Valley, CA

That's the driving distance. It would take 1 day 23 hours to go from Gaithersburg, Maryland to Simi Valley, California.

The flight distance (direct flight from Gaithersburg, MD to Simi Valley, CA) is 2,307.40 mi.

2,635 mi = 4,240.69 kms