226 miles as the crow flies. Allow at least 4 hours travel time ... that is actual on the road time, driving.
The driving time from Oxford, Mississippi to Birmingham, Alabama is about three hours. (about 190 miles)
311 miles according to Google Maps.
248 miles
315 miles
137 miles
211 miles
It is 118.88 miles according to MapQuest.
It is 316.80 miles according to MapQuest.
235 miles taking I-20 EAST.
It is 255 miles according to Google Maps.
Alabama and Mississippi share a border so it is theoretically possible for your car to be in both states at once. Birmingham to Jackson is 238 miles.
The driving distance from Birmingham, Alabama to Hattiesburg, Mississippi is 232 miles via I-59 S per MapQuest. The driving time per MapQuest is 3 hours and 33 minutes.