There are
961 mi
from Gaithersburg, MD to Palmetto, FL
That's the driving distance. It would take 17 hours 55 mins to go from Gaithersburg, Maryland to Palmetto, Florida.
The flight distance (direct flight from Gaithersburg, MD to Palmetto, FL) is 860.33 mi.
961 mi = 1,545.77 kms