There are
1,849 mi
from Gresham, OR to Warrensburg, MO
That's the driving distance. It would take 1 day 7 hours to go from Gresham, Oregon to Warrensburg, Missouri.
The flight distance (direct flight from Gresham, OR to Warrensburg, MO) is 1,532.73 mi.
1,849 mi = 1.61 kms