There are
2,008 mi
from Rockford, IL to Oroville, CA
That's the driving distance. It would take 1 day 10 hours to go from Rockford, Illinois to Oroville, California.
The flight distance (direct flight from Rockford, IL to Oroville, CA) is 1,695.82 mi.
2,008 mi = 3.22 kms