Miles between Round Rock, TX and Simi Valley, CA

There are
1,435 mi
from Round Rock, TX to Simi Valley, CA

That's the driving distance. It would take 1 day to go from Round Rock, Texas to Simi Valley, California.

The flight distance (direct flight from Round Rock, TX to Simi Valley, CA) is 1,255.87 mi.

1,435 mi = 1.61 kms