Miles between Round Rock, TX and Lemont, IL

There are
1,082 mi
from Round Rock, TX to Lemont, IL

That's the driving distance. It would take 19 hours 52 mins to go from Round Rock, Texas to Lemont, Illinois.

The flight distance (direct flight from Round Rock, TX to Lemont, IL) is 940.44 mi.

1,082 mi = 1.61 kms