There are
2,066 mi
from Fullerton, CA to Wausau, WI
That's the driving distance. It would take 1 day 12 hours to go from Fullerton, California to Wausau, Wisconsin.
The flight distance (direct flight from Fullerton, CA to Wausau, WI) is 1,681.58 mi.
2,066 mi = 3.22 kms