Miles between Round Rock, TX and Herndon, VA

There are
1,492 mi
from Round Rock, TX to Herndon, VA

That's the driving distance. It would take 1 day 2 hours to go from Round Rock, Texas to Herndon, Virginia.

The flight distance (direct flight from Round Rock, TX to Herndon, VA) is 1,287.97 mi.

1,492 mi = 1.61 kms