There are
1,895 mi
from Rockford, IL to Hesperia, CA
That's the driving distance. It would take 1 day 9 hours to go from Rockford, Illinois to Hesperia, California.
The flight distance (direct flight from Rockford, IL to Hesperia, CA) is 1,612.76 mi.
1,895 mi = 1.61 kms