There are
2,402 mi
from Concord, CA to Hilliard, OH
That's the driving distance. It would take 1 day 18 hours to go from Concord, California to Hilliard, Ohio.
The flight distance (direct flight from Concord, CA to Hilliard, OH) is 2,075.39 mi.
2,402 mi = 3.22 kms