Miles between Boulder, CO and Grand Terrace, CA

There are
989 mi
from Boulder, CO to Grand Terrace, CA

That's the driving distance. It would take 17 hours 21 mins to go from Boulder, Colorado to Grand Terrace, California.

The flight distance (direct flight from Boulder, CO to Grand Terrace, CA) is 781.30 mi.

989 mi = 1,592.02 kms