There are
1,652 mi
from St George, UT to Marshfield, WI
That's the driving distance. It would take 1 day 5 hours to go from St George, Utah to Marshfield, Wisconsin.
The flight distance (direct flight from St George, UT to Marshfield, WI) is 1,323.93 mi.
1,652 mi = 1.61 kms