There are
2,048 mi
from Rialto, CA to Clarksville, IN
That's the driving distance. It would take 1 day 12 hours to go from Rialto, California to Clarksville, Indiana.
The flight distance (direct flight from Rialto, CA to Clarksville, IN) is 1,777.17 mi.
2,048 mi = 3.22 kms