Kelley, Louisiana is halfway between Killeen & Mary Esther
The driving distance from Austin, TX, USA to Killeen, TX, USA is 67.45mi / 108.55km
The driving distance between Killeen TX and the California state line is about 1,167 road miles.
The driving distance is about 170 miles.
Santa Rosa, NM
The half way point between O'fallon Mo and Killeen Texas would Ga. This is where i would stop and get a room.
The driving distance from Augusta, GA to Killeen, TX is 1,075 miles. The halfway point would be at 537 miles, which would place you about 10 miles west of Jackson,MS if you were travelling on I-20.
Amarillo Tx is 8 hours from either location
The shortest distance is 221 miles.
15 hours 15 minutes
62 miles, a little over an hour
The driving distance from Killeen TX to Harrisburg PA is 1535 miles per Map Quest. The driving time per Map Quest is 22 hours and 44 minutes.