Miles between Round Rock, TX and St Charles, IL

There are
1,088 mi
from Round Rock, TX to St Charles, IL

That's the driving distance. It would take 20 hours 16 mins to go from Round Rock, Texas to St Charles, Illinois.

The flight distance (direct flight from Round Rock, TX to St Charles, IL) is 944.29 mi.

1,088 mi = 1.61 kms