There are
2,076 mi
from Lake Forest, CA to Wausau, WI
That's the driving distance. It would take 1 day 12 hours to go from Lake Forest, California to Wausau, Wisconsin.
The flight distance (direct flight from Lake Forest, CA to Wausau, WI) is 1,679.60 mi.
2,076 mi = 3.22 kms