There are
2,380 mi
from Walnut Creek, CA to Ferndale, MI
That's the driving distance. It would take 1 day 17 hours to go from Walnut Creek, California to Ferndale, Michigan.
The flight distance (direct flight from Walnut Creek, CA to Ferndale, MI) is 2,060.56 mi.
2,380 mi = 3,829.73 kms