There are
1,859 mi
from Katy, TX to Milpitas, CA
That's the driving distance. It would take 1 day 8 hours to go from Katy, Texas to Milpitas, California.
The flight distance (direct flight from Katy, TX to Milpitas, CA) is 1,584.84 mi.
1,859 mi = 2,992.39 kms