Miles between Rockford, IL and Foster City, CA

There are
2,107 mi
from Rockford, IL to Foster City, CA

That's the driving distance. It would take 1 day 12 hours to go from Rockford, Illinois to Foster City, California.

The flight distance (direct flight from Rockford, IL to Foster City, CA) is 1,776.45 mi.

2,107 mi = 3.22 kms