There are
2,545 mi
from Rockville, MD to Fernley, NV
That's the driving distance. It would take 1 day 20 hours to go from Rockville, Maryland to Fernley, Nevada.
The flight distance (direct flight from Rockville, MD to Fernley, NV) is 2,228.76 mi.
2,545 mi = 4,095.13 kms