Miles between Rialto, CA and Watertown, SD

There are
1,681 mi
from Rialto, CA to Watertown, SD

That's the driving distance. It would take 1 day 5 hours to go from Rialto, California to Watertown, South Dakota.

The flight distance (direct flight from Rialto, CA to Watertown, SD) is 1,306.40 mi.

1,681 mi = 1.61 kms