There are
2,653 mi
from Simi Valley, CA to Martinsburg, WV
That's the driving distance. It would take 1 day 22 hours to go from Simi Valley, California to Martinsburg, West Virginia.
The flight distance (direct flight from Simi Valley, CA to Martinsburg, WV) is 2,265.09 mi.
2,653 mi = 3.22 kms