There are
1,442 mi
from Gaithersburg, MD to Stephenville, TX
That's the driving distance. It would take 1 day 2 hours to go from Gaithersburg, Maryland to Stephenville, Texas.
The flight distance (direct flight from Gaithersburg, MD to Stephenville, TX) is 1,268.18 mi.
1,442 mi = 2,320.80 kms