How far is Gwynn Oak, MD from Green Valley, MD?
The driving distance from Gwynn Oak, MD to Green Valley, MD is about 40 miles (64.4 km), with a travel time of about 00h 54m by car.
- The straight-line flight distance is about 32.4 miles (52.1 km).
- For a round trip, plan for roughly 01h 49m 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 00h 54m.
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.
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 Gwynn Oak and Green Valley.
Turn-by-Turn Driving Directions
Step-by-step road directions between Gwynn Oak and Green Valley.
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1
Start on the route
18 m · 6 sec
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2
Turn right onto Haddon Avenue
54 m · 12 sec · Haddon Avenue
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3
Turn left onto Hillsdale Road
1.5 km · 3 min · Hillsdale Road
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4
Turn slight right onto West Forest Park Avenue
1.4 mi · 4 min · West Forest Park Avenue
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5
Continue on Ingleside Avenue
944 ft · 31 sec · Ingleside Avenue
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6
Take the ramp slight right toward I 70 West
1812 ft · 44 sec
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7
Merge slight left
11.6 mi · 13 min
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8
Continue straight
4.2 mi · 5 min
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9
Continue straight
11.8 mi · 13 min
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10
Continue straight
2.5 mi · 3 min
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11
Take the exit slight right toward MD 75: Libertytown, Hyattstown
2233 ft · 57 sec
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12
Turn left onto Green Valley Road
2333 ft · 59 sec · Green Valley Road
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13
Turn right onto Baldwin Road
2292 ft · 55 sec · Baldwin Road
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14
Turn left onto Green Valley Road
2.4 mi · 5 min · Green Valley Road
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15
Turn left onto Fingerboard Road
716 ft · 18 sec · Fingerboard Road
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16
Turn right onto Green Valley Road
3.1 mi · 6 min · Green Valley Road
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17
Turn left onto Prices Distillery Road
37 m · 8 sec · Prices Distillery Road
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18
Turn right
15 m · 8 sec
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19
Turn left
60 m · 15 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 Gwynn Oak and Green Valley.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 70 West
Continue straight
11.8 mi · 00h 13m
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 leaving Gwynn Oak and Rain Showers near Green Valley.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Gwynn Oak to Green Valley?
The road trip is about 40 miles (64.4 km) and usually takes 00h 54m 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?
Sykesville is a useful midpoint, sitting about 19.9 miles from Gwynn Oak and 20 miles from Green Valley.
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 7.6 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 4:40 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.76 one way or $11.52 round trip. Estimated CO2 is about 12.5 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Gwynn Oak and Rain Showers near Green Valley.
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 Gwynn Oak and Green Valley. Straight-line distance: 32.35 mi (52.06 km).
#1 Gwynn Oak
A census-designated place in Baltimore County, Maryland.
| Population | 47,092 |
| Coordinates | 39.3326100, -76.6927500 |
| Altitude | 130 |
| Country | United States |
#2 Green Valley
Town in Frederick County, Maryland, United States
| Population | 12,262 |
| Coordinates | 39.3092700, -77.2972100 |
| Altitude | 121 |
| Country | United States |
End: Green Valley (-77.29721, 39.30927)
Estimated Travel Time
Distance: 64 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 19m |
| 40 mph (64.37 km/h) | 00h 59m |
| 50 mph (80.47 km/h) | 00h 47m |
| 60 mph (96.56 km/h) | 00h 39m |
| 70 mph (112.65 km/h) | 00h 34m |
| 80 mph (129 km/h) | 00h 29m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $5.76 | $11.52 |
| Mid-grade | $4.60 | $6.48 | $12.97 |
| Premium | $4.95 | $6.99 | $13.97 |
| Diesel | $5.98 | $8.43 | $16.86 |
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.