There are
1,341 mi
from Hereford, TX to Pittsburg, CA
That's the driving distance. It would take 23 hours 36 mins to go from Hereford, Texas to Pittsburg, California.
The flight distance (direct flight from Hereford, TX to Pittsburg, CA) is 1,103.75 mi.
1,341 mi = 2,157.63 kms