Less than 4 hours. However, if you're traveling to downtown Atlanta, traffic on 75/85/GA 400 will be a nightmare at pretty much any time of day.
From Atlanta to Tampa, over the I-75 S, is about 458 miles.
About 455 miles
457 miles
354 air miles.
It is 457.01 miles according to MapQuest.
735 km
It takes 5.5 hours to drive from Atlanta GA. to Jacksonville, FL I-75 south to I-10 East
Go straight down I-75 and you'll be in Tampa in about 7 to 8 hours.
4 hrs
MapQuest gives the driving time as 7 hours and 8 minutes.
There are about 445.563 miles between Atlanta, GA and Bradenton, FL.
The trip from Tampa, FL to Savannah, GA takes about 5 1/2 hours; with the distance being 336.55 miles according to MapQuest.