There are
990 mi
from Haverhill, MA to Clarksville, IN
That's the driving distance. It would take 18 hours 52 mins to go from Haverhill, Massachusetts to Clarksville, Indiana.
The flight distance (direct flight from Haverhill, MA to Clarksville, IN) is 829.39 mi.
990 mi = 1,593.02 kms