Miles between Round Rock, TX and Collinsville, IL

There are
821 mi
from Round Rock, TX to Collinsville, IL

That's the driving distance. It would take 15 hours 9 mins to go from Round Rock, Texas to Collinsville, Illinois.

The flight distance (direct flight from Round Rock, TX to Collinsville, IL) is 713.23 mi.

821 mi = 1,321.14 kms