There are
2,411 mi
from Concord, CA to Amherst, OH
That's the driving distance. It would take 1 day 17 hours to go from Concord, California to Amherst, Ohio.
The flight distance (direct flight from Concord, CA to Amherst, OH) is 2,111.08 mi.
2,411 mi = 3.22 kms