About 150 Miles
Maryland has a total area of 10,460 square miles.
They share a common border.
It is 2,765.54 miles according to MapQuest.
It is 76 miles according to Google Maps.
The state of Maryland is 90 miles long. It is about 250 miles wide. It is 10,455 square miles in size.
Washington Dulles International Airport is 18 miles from Rockville, Maryland.
about 1000 miles to Washington state, 2700 to DC
about 3100 miles
It is about 2,700 miles between Washington, D.C. and Seattle, Washington.