Miles between Round Rock, TX and Johnston, IA

There are
912 mi
from Round Rock, TX to Johnston, IA

That's the driving distance. It would take 15 hours 53 mins to go from Round Rock, Texas to Johnston, Iowa.

The flight distance (direct flight from Round Rock, TX to Johnston, IA) is 802.31 mi.

912 mi = 1,467.83 kms