There are
1,615 mi
from Simi Valley, CA to Conroe, TX
That's the driving distance. It would take 1 day 3 hours to go from Simi Valley, California to Conroe, Texas.
The flight distance (direct flight from Simi Valley, CA to Conroe, TX) is 1,386.28 mi.
1,615 mi = 1.61 kms