There are
2,186 mi
from Clarksville, TN to Greenfield, CA
That's the driving distance. It would take 1 day 14 hours to go from Clarksville, Tennessee to Greenfield, California.
The flight distance (direct flight from Clarksville, TN to Greenfield, CA) is 1,873.96 mi.
2,186 mi = 3,518.08 kms