How far is Green Valley, MD from Gwynn Oak, MD?
The driving distance from Green Valley, MD to Gwynn Oak, MD is about 40.3 miles (64.8 km), with a travel time of about 00h 45m by car.
- The straight-line flight distance is about 32.4 miles (52.1 km).
- For a round trip, plan for roughly 01h 30m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 45m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Town in Carroll County, Maryland, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Rain Showers
Driving Route Map
The map below follows the saved road route between Green Valley and Gwynn Oak.
Turn-by-Turn Driving Directions
Step-by-step road directions between Green Valley and Gwynn Oak.
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1
Start on the route
60 m · 16 sec
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2
Turn right
15 m · 9 sec
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3
Turn left onto Prices Distillery Road
37 m · 6 sec · Prices Distillery Road
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4
Turn right onto Green Valley Road
3.1 mi · 6 min · Green Valley Road
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5
At the end of the road, turn left onto Fingerboard Road
716 ft · 17 sec · Fingerboard Road
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6
Turn right onto Green Valley Road
2.4 mi · 5 min · Green Valley Road
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7
Turn right onto Baldwin Road
2292 ft · 49 sec · Baldwin Road
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8
Turn left onto Green Valley Road
540 ft · 15 sec · Green Valley Road
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9
Take the ramp straight toward I 70 East
2547 ft · 1 min
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10
Merge slight left
12.8 mi · 14 min
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11
Continue straight
6.5 mi · 7 min
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12
Keep slight left to continue on Baltimore
11.4 mi · 13 min
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13
Take the exit slight right toward Security Boulevard
1469 ft · 36 sec
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14
Turn straight onto Security Boulevard
916 ft · 22 sec · Security Boulevard
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15
Turn right onto North Forest Park Avenue
1.4 mi · 4 min · North Forest Park Avenue
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16
Turn slight left onto Hillsdale Road
1.5 km · 3 min · Hillsdale Road
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17
Turn right onto Haddon Avenue
54 m · 11 sec · Haddon Avenue
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18
Turn left
18 m · 4 sec
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19
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Green Valley 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 70 East
Merge slight left
12.8 mi · 00h 14m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Rain Showers leaving Green Valley and Rain Showers near Gwynn Oak.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Green Valley to Gwynn Oak?
The road trip is about 40.3 miles (64.8 km) and usually takes 00h 45m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Sykesville is a useful midpoint, sitting about 20.1 miles from Green Valley and 20.1 miles from Gwynn Oak.
How much longer is the road route than the straight-line distance?
The direct path is about 32.4 miles (52.1 km), while the road route adds roughly 7.9 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:00 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.80 one way or $11.60 round trip. Estimated CO2 is about 12.6 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Green Valley and Rain Showers near Gwynn Oak.
Stop Ideas Near Sykesville
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Sykesville.
Pennsylvania Station
BWI Rail Station
Frederick Airport, MD
Rockville station
Flight Path Map
This map shows the direct air route between Green Valley and Gwynn Oak. Straight-line distance: 32.35 mi (52.06 km).
#1 Green Valley
Town in Frederick County, Maryland, United States
| Population | 12,262 |
| Coordinates | 39.3092700, -77.2972100 |
| Altitude | 121 |
| 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: 65 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 20m |
| 40 mph (64.37 km/h) | 01h 00m |
| 50 mph (80.47 km/h) | 00h 48m |
| 60 mph (96.56 km/h) | 00h 40m |
| 70 mph (112.65 km/h) | 00h 34m |
| 80 mph (129 km/h) | 00h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $5.80 | $11.60 |
| Mid-grade | $4.60 | $6.53 | $13.06 |
| Premium | $4.95 | $7.03 | $14.07 |
| Diesel | $5.98 | $8.49 | $16.98 |
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 · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.