There are
1,996 mi
from Gresham, OR to Watertown, WI
That's the driving distance. It would take 1 day 10 hours to go from Gresham, Oregon to Watertown, Wisconsin.
The flight distance (direct flight from Gresham, OR to Watertown, WI) is 1,660.46 mi.
1,996 mi = 1.61 kms