There are
966 mi
from Marietta, GA to Wausau, WI
That's the driving distance. It would take 18 hours 6 mins to go from Marietta, Georgia to Wausau, Wisconsin.
The flight distance (direct flight from Marietta, GA to Wausau, WI) is 806.89 mi.
966 mi = 1,554.64 kms