There are
2,073 mi
from Rockville, MD to Riverton, UT
That's the driving distance. It would take 1 day 12 hours to go from Rockville, Maryland to Riverton, Utah.
The flight distance (direct flight from Rockville, MD to Riverton, UT) is 1,837.17 mi.
2,073 mi = 3,336.68 kms