There are
2,418 mi
from Walnut Creek, CA to Worthington, OH
That's the driving distance. It would take 1 day 18 hours to go from Walnut Creek, California to Worthington, Ohio.
The flight distance (direct flight from Walnut Creek, CA to Worthington, OH) is 2,085.27 mi.
2,418 mi = 3,891.32 kms