Miles between Ontario, CA and Round Lake, IL

There are
1,982 mi
from Ontario, CA to Round Lake, IL

That's the driving distance. It would take 1 day 11 hours to go from Ontario, California to Round Lake, Illinois.

The flight distance (direct flight from Ontario, CA to Round Lake, IL) is 1,693.58 mi.

1,982 mi = 1.61 kms