There are
3,125 mi
from Nashua, NH to South San Francisco, CA
That's the driving distance. It would take 2 days 7 hours to go from Nashua, New Hampshire to South San Francisco, California.
The flight distance (direct flight from Nashua, NH to South San Francisco, CA) is 2,670.01 mi.
3,125 mi = 4.83 kms