There are
845 mi
from Tuscaloosa, AL to Marshalltown, IA
That's the driving distance. It would take 16 hours 9 mins to go from Tuscaloosa, Alabama to Marshalltown, Iowa.
The flight distance (direct flight from Tuscaloosa, AL to Marshalltown, IA) is 676.67 mi.
845 mi = 1,359.72 kms