There are
1,658 mi
from Walnut Creek, CA to Stephenville, TX
That's the driving distance. It would take 1 day 5 hours to go from Walnut Creek, California to Stephenville, Texas.
The flight distance (direct flight from Walnut Creek, CA to Stephenville, TX) is 1,401.10 mi.
1,658 mi = 2,667.95 kms