Miles between Diamond Bar, CA and Forest Grove, OR

There are
994 mi
from Diamond Bar, CA to Forest Grove, OR

That's the driving distance. It would take 18 hours 56 mins to go from Diamond Bar, California to Forest Grove, Oregon.

The flight distance (direct flight from Diamond Bar, CA to Forest Grove, OR) is 841.89 mi.

994 mi = 1,600.31 kms