There are
1,106 mi
from Round Rock, TX to Algonquin, IL
That's the driving distance. It would take 20 hours 44 mins to go from Round Rock, Texas to Algonquin, Illinois.
The flight distance (direct flight from Round Rock, TX to Algonquin, IL) is 958.58 mi.
1,106 mi = 1.61 kms