Miles between Round Rock, TX and St Marys, PA

There are
1,528 mi
from Round Rock, TX to St Marys, PA

That's the driving distance. It would take 1 day 3 hours to go from Round Rock, Texas to St Marys, Pennsylvania.

The flight distance (direct flight from Round Rock, TX to St Marys, PA) is 1,304.80 mi.

1,528 mi = 1.61 kms