Miles between Round Rock, TX and Decatur, IL

There are
924 mi
from Round Rock, TX to Decatur, IL

That's the driving distance. It would take 17 hours 15 mins to go from Round Rock, Texas to Decatur, Illinois.

The flight distance (direct flight from Round Rock, TX to Decatur, IL) is 810.56 mi.

924 mi = 1,487.48 kms