There are
1,011 mi
from Hereford, TX to Greencastle, IN
That's the driving distance. It would take 18 hours 2 mins to go from Hereford, Texas to Greencastle, Indiana.
The flight distance (direct flight from Hereford, TX to Greencastle, IN) is 915.83 mi.
1,011 mi = 1,627.45 kms