Miles between Round Rock, TX and Watertown, SD

There are
1,104 mi
from Round Rock, TX to Watertown, SD

That's the driving distance. It would take 19 hours 15 mins to go from Round Rock, Texas to Watertown, South Dakota.

The flight distance (direct flight from Round Rock, TX to Watertown, SD) is 994.80 mi.

1,104 mi = 1.61 kms