If you're looking for a meeting place or a good stop around ½ or halfway between Atlanta and Chipley, you can try Hyram, AL, which is about 2 hours southwest of Atlanta, or about 2 hours north of Chipley.
About ¼ or a fourth of the way, you can stop at LaGrange, GA. This is almost an hour southwest of Atlanta.
About ⅓ or a third of the way, you can stop at Valley, AL. This is a little over 1 hour southwest of Atlanta.
About ¾ or three fourths of the way, you can stop at Screamer, AL. This is about 3 hours south of Atlanta, or about 1 hour north of Chipley.
If you drive straight through without stopping at all, the total distance is 240 miles. The distances shown above don't include local roads to get into each town, so if you're planning a long road trip, make sure you factor in traffic and road conditions, rest stop breaks, and interesting detours along the way. If you're in a rush, you can do the trip with zero stops, and your total travel time would be around 3 hours, 57 minutes.