Miles between Round Rock, TX and Horn Lake, MS

There are
644 mi
from Round Rock, TX to Horn Lake, MS

That's the driving distance. It would take 11 hours 11 mins to go from Round Rock, Texas to Horn Lake, Mississippi.

The flight distance (direct flight from Round Rock, TX to Horn Lake, MS) is 539.91 mi.

644 mi = 1,036.29 kms