There are
1,906 mi
from Waterloo, IA to Larkspur, CA
That's the driving distance. It would take 1 day 8 hours to go from Waterloo, Iowa to Larkspur, California.
The flight distance (direct flight from Waterloo, IA to Larkspur, CA) is 1,614.90 mi.
1,906 mi = 3,066.79 kms