There are
2,276 mi
from Walnut Creek, CA to Clarksville, TN
That's the driving distance. It would take 1 day 16 hours to go from Walnut Creek, California to Clarksville, Tennessee.
The flight distance (direct flight from Walnut Creek, CA to Clarksville, TN) is 1,900.90 mi.
2,276 mi = 3,663.10 kms