There are
2,049 mi
from San Bernardino, CA to Clarksville, IN
That's the driving distance. It would take 1 day 11 hours to go from San Bernardino, California to Clarksville, Indiana.
The flight distance (direct flight from San Bernardino, CA to Clarksville, IN) is 1,772.79 mi.
2,049 mi = 3.22 kms