There are
2,845 mi
from Rocklin, CA to Danbury, CT
That's the driving distance. It would take 2 days 1 hour to go from Rocklin, California to Danbury, Connecticut.
The flight distance (direct flight from Rocklin, CA to Danbury, CT) is 2,499.88 mi.
2,845 mi = 4,577.93 kms