There are
2,440 mi
from Hayward, CA to Amherst, OH
That's the driving distance. It would take 1 day 18 hours to go from Hayward, California to Amherst, Ohio.
The flight distance (direct flight from Hayward, CA to Amherst, OH) is 2,120.75 mi.
2,440 mi = 3.22 kms