There are
2,409 mi
from Gresham, OR to Amherst, OH
That's the driving distance. It would take 1 day 17 hours to go from Gresham, Oregon to Amherst, Ohio.
The flight distance (direct flight from Gresham, OR to Amherst, OH) is 2,015.25 mi.
2,409 mi = 3.22 kms