Miles between Round Rock, TX and Colleyville, TX

There are
185 mi
from Round Rock, TX to Colleyville, TX

That's the driving distance. It would take 3 hours 18 mins to go from Round Rock, Texas to Colleyville, Texas.

The flight distance (direct flight from Round Rock, TX to Colleyville, TX) is 166.80 mi.

185 mi = 297.58 kms