Miles between Fremont, CA and Duncan, OK

There are
1,592 mi
from Fremont, CA to Duncan, OK

That's the driving distance. It would take 1 day 4 hours to go from Fremont, California to Duncan, Oklahoma.

The flight distance (direct flight from Fremont, CA to Duncan, OK) is 1,355.44 mi.

1,592 mi = 1.61 kms