There are
668 mi
from Miramar, FL to Smyrna, GA
That's the driving distance. It would take 12 hours 12 mins to go from Miramar, Florida to Smyrna, Georgia.
The flight distance (direct flight from Miramar, FL to Smyrna, GA) is 602.03 mi.
668 mi = 1,075.80 kms