Miles between Boulder, CO and Rio Grande City, TX

There are
1,214 mi
from Boulder, CO to Rio Grande City, TX

That's the driving distance. It would take 21 hours 47 mins to go from Boulder, Colorado to Rio Grande City, Texas.

The flight distance (direct flight from Boulder, CO to Rio Grande City, TX) is 1,012.47 mi.

1,214 mi = 1.61 kms