There are
1,803 mi
from Waterloo, IA to Rocklin, CA
That's the driving distance. It would take 1 day 6 hours to go from Waterloo, Iowa to Rocklin, California.
The flight distance (direct flight from Waterloo, IA to Rocklin, CA) is 1,528.60 mi.
1,803 mi = 2,900.87 kms