There are
2,196 mi
from Simi Valley, CA to Trotwood, OH
That's the driving distance. It would take 1 day 15 hours to go from Simi Valley, California to Trotwood, Ohio.
The flight distance (direct flight from Simi Valley, CA to Trotwood, OH) is 1,926.81 mi.
2,196 mi = 3.22 kms