There are
2,351 mi
from Simi Valley, CA to Westlake, OH
That's the driving distance. It would take 1 day 17 hours to go from Simi Valley, California to Westlake, Ohio.
The flight distance (direct flight from Simi Valley, CA to Westlake, OH) is 2,054.58 mi.
2,351 mi = 3.22 kms