Miles between Allentown, PA and Round Rock, TX

There are
1,635 mi
from Allentown, PA to Round Rock, TX

That's the driving distance. It would take 1 day 5 hours to go from Allentown, Pennsylvania to Round Rock, Texas.

The flight distance (direct flight from Allentown, PA to Round Rock, TX) is 1,423.25 mi.

1,635 mi = 1.61 kms