How far is Potomac, MD from Gwynn Oak, MD?
The driving distance from Potomac, MD to Gwynn Oak, MD is about 50.3 miles (81 km), with a travel time of about 01h 02m by car.
- The straight-line flight distance is about 35.2 miles (56.6 km).
- For a round trip, plan for roughly 02h 04m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 01h 02m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Census designated place
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Slight Chance Rain Showers then Partly Sunny
Driving Route Map
The map below follows the saved road route between Potomac and Gwynn Oak.
Turn-by-Turn Driving Directions
Step-by-step road directions between Potomac and Gwynn Oak.
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1
Start on the route
25 m · 8 sec
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2
Turn right onto Falls Road
1.1 km · 1 min · Falls Road
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3
Turn right onto Democracy Boulevard
4.4 mi · 8 min · Democracy Boulevard
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4
Turn right onto Old Georgetown Road
1.2 km · 2 min · Old Georgetown Road
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5
Turn left onto I 495 East: Baltimore, Silver Spring
1069 ft · 28 sec
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6
Merge slight left onto Capital Beltway
9.2 mi · 12 min · Capital Beltway
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7
Take the exit slight right toward I 95 North: Baltimore
1579 ft · 39 sec
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8
Keep slight left to continue on I 95 North: Baltimore, New York
1.1 mi · 2 min
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9
Merge slight left
19.1 mi · 22 min
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10
Take the exit slight right toward I 195 East, MD 166: BWI Thurgood Marshall Airport, Catonsville
1708 ft · 22 sec
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11
Keep slight left to continue on MD 166: Catonsville
2203 ft · 54 sec
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12
Merge slight right onto Metropolitan Boulevard
1.4 km · 57 sec · Metropolitan Boulevard
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13
Keep slight right to continue on MD 166: Catonsville, Community College of Baltimore County
1.1 mi · 3 min
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14
Turn right onto Bloomsbury Avenue
1.5 km · 2 min · Bloomsbury Avenue
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15
Continue on Ingleside Avenue
2.7 mi · 6 min · Ingleside Avenue
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16
Continue on North Forest Park Avenue
1.4 mi · 4 min · North Forest Park Avenue
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17
Turn slight left onto Hillsdale Road
1.5 km · 3 min · Hillsdale Road
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18
Turn right onto Haddon Avenue
54 m · 11 sec · Haddon Avenue
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19
Turn left
18 m · 4 sec
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20
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Potomac and Gwynn Oak.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
I 95 North
Merge slight left
19.1 mi · 00h 22m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Rain Showers Likely leaving Potomac and Slight Chance Rain Showers then Partly Sunny near Gwynn Oak.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Potomac to Gwynn Oak?
The road trip is about 50.3 miles (81 km) and usually takes 01h 02m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
West Laurel is a useful midpoint, sitting about 22.2 miles from Potomac and 28.1 miles from Gwynn Oak.
How much longer is the road route than the straight-line distance?
The direct path is about 35.2 miles (56.6 km), while the road route adds roughly 15.1 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 4:26 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.27 one way or $14.55 round trip. Estimated CO2 is about 15.8 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Potomac and Slight Chance Rain Showers then Partly Sunny near Gwynn Oak.
Stop Ideas Near West Laurel
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City of Rockville City Hall
D C Government
City of Bowie
Town Hall Liquor And Bar
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to West Laurel.
New Carrollton station
BWI Rail Station
Rockville station
Washington Union Station
Flight Path Map
This map shows the direct air route between Potomac and Gwynn Oak. Straight-line distance: 35.15 mi (56.57 km).
#1 Potomac
Census-designated place in Montgomery County, Maryland, United States
| Population | 44,965 |
| Coordinates | 39.0181700, -77.2085900 |
| Altitude | 110 |
| Country | United States |
#2 Gwynn Oak
A census-designated place in Baltimore County, Maryland.
| Population | 47,092 |
| Coordinates | 39.3326100, -76.6927500 |
| Altitude | 130 |
| Country | United States |
End: (-76.692724, 39.332601)
Estimated Travel Time
Distance: 81 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 40m |
| 40 mph (64.37 km/h) | 01h 15m |
| 50 mph (80.47 km/h) | 01h 00m |
| 60 mph (96.56 km/h) | 00h 50m |
| 70 mph (112.65 km/h) | 00h 43m |
| 80 mph (129 km/h) | 00h 37m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $7.27 | $14.55 |
| Mid-grade | $4.60 | $8.19 | $16.37 |
| Premium | $4.95 | $8.82 | $17.64 |
| Diesel | $5.98 | $10.64 | $21.29 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Maryland · May 07, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.