There are
2,128 mi
from Walnut Creek, CA to Griffith, IN
That's the driving distance. It would take 1 day 12 hours to go from Walnut Creek, California to Griffith, Indiana.
The flight distance (direct flight from Walnut Creek, CA to Griffith, IN) is 1,845.50 mi.
2,128 mi = 3,425.01 kms