There are
2,426 mi
from Walnut Creek, CA to Pickerington, OH
That's the driving distance. It would take 1 day 18 hours to go from Walnut Creek, California to Pickerington, Ohio.
The flight distance (direct flight from Walnut Creek, CA to Pickerington, OH) is 2,101.33 mi.
2,426 mi = 3,903.78 kms