There are
3,020 mi
from Nashua, NH to Simi Valley, CA
That's the driving distance. It would take 2 days 6 hours to go from Nashua, New Hampshire to Simi Valley, California.
The flight distance (direct flight from Nashua, NH to Simi Valley, CA) is 2,588.98 mi.
3,020 mi = 4.83 kms