There are
957 mi
from Clarksville, TN to Westbury, NY
That's the driving distance. It would take 18 hours 12 mins to go from Clarksville, Tennessee to Westbury, New York.
The flight distance (direct flight from Clarksville, TN to Westbury, NY) is 797.40 mi.
957 mi = 1,539.51 kms