There are
2,284 mi
from Tucson, AZ to Rockville, MD
That's the driving distance. It would take 1 day 16 hours to go from Tucson, Arizona to Rockville, Maryland.
The flight distance (direct flight from Tucson, AZ to Rockville, MD) is 1,942.43 mi.
2,284 mi = 3.22 kms