Distance: Gaithersburg, MD to Washington, D.C.

The distance between Gaithersburg, Maryland and Washington, D.C. is approximately 24 miles (38.6 km) by road.

Travel Details

• Driving time: 35–55 minutes via I-270 South → I-495 (Capital Beltway) or MD-355 (Rockville Pike)
• Metro (Red Line): ~45–55 minutes from Shady Grove or Rockville stations (park-and-ride from Gaithersburg)
• MARC Train (Brunswick Line): ~40 minutes from Gaithersburg station to Union Station (weekday peak only)

Gaithersburg is a major Montgomery County suburb in the I-270 Technology Corridor. Many residents commute daily to D.C. federal agencies, contractors, and hospitals.