There are
1,662 mi
from Walnut Creek, CA to Fredericksburg, TX
That's the driving distance. It would take 1 day 4 hours to go from Walnut Creek, California to Fredericksburg, Texas.
The flight distance (direct flight from Walnut Creek, CA to Fredericksburg, TX) is 1,423.15 mi.
1,662 mi = 2,674.61 kms