There are
2,333 mi
from Clarksville, TN to Pacifica, CA
That's the driving distance. It would take 1 day 16 hours to go from Clarksville, Tennessee to Pacifica, California.
The flight distance (direct flight from Clarksville, TN to Pacifica, CA) is 1,926.62 mi.
2,333 mi = 3.22 kms