There are
521 mi
from Overland Park, KS to Clarksville, IN
That's the driving distance. It would take 9 hours 51 mins to go from Overland Park, Kansas to Clarksville, Indiana.
The flight distance (direct flight from Overland Park, KS to Clarksville, IN) is 483.03 mi.
521 mi = 837.73 kms