It is not feasible or possible to drive directly from Austin, Texas, to Washington, D.C., as there is considerable distance between these cities. The approximate distance between Austin, Texas, and Washington, D.C., is roughly 1,400-1,500 miles (approximately 2,250-2,415 km). Given this distance and the speed limits on the roads, driving such a long journey, especially without breaks, is highly impractical.
Driving nonstop could take over 20 hours, although this is not advisable due to safety concerns and legal driving restrictions. For long-distance travel like this, it is common to make stops along the way, stay overnight, or consider alternative modes of transportation such as flying, taking a bus, or riding a train.