How far is Herald Harbor, MD from Gwynn Oak, MD?
The driving distance from Herald Harbor, MD to Gwynn Oak, MD is about 29.9 miles (48.1 km), with a travel time of about 00h 38m by car.
- The straight-line flight distance is about 20.4 miles (32.8 km).
- For a round trip, plan for roughly 01h 16m 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 38m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town in Anne Arundel County, Maryland, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Rain Showers
Driving Route Map
The map below follows the saved road route between Herald Harbor and Gwynn Oak.
Turn-by-Turn Driving Directions
Step-by-step road directions between Herald Harbor and Gwynn Oak.
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1
Start on Hazel Trail
8 m · 6 sec · Hazel Trail
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2
Turn right onto Kyle Road
2196 ft · 2 min · Kyle Road
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3
Continue on Kyle Road
1164 ft · 51 sec · Kyle Road
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4
Turn right onto Herald Harbor Road
1 km · 2 min · Herald Harbor Road
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5
Continue on Herald Harbor Road
1.4 mi · 3 min · Herald Harbor Road
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6
At the end of the road, turn right onto Generals Highway
1381 ft · 30 sec · Generals Highway
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7
Take the ramp straight
1 mi · 2 min
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8
Merge slight left
1.1 km · 49 sec
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9
Keep slight left
10.4 mi · 12 min
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10
Take the exit slight right toward I 695 West: Baltimore, Towson
1.1 mi · 1 min
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11
Merge slight right onto Baltimore Beltway
7.7 mi · 10 min · Baltimore Beltway
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12
Take the exit slight right toward US 40 East: Baltimore
1820 ft · 44 sec
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13
Turn straight onto Baltimore National Pike
957 ft · 22 sec · Baltimore National Pike
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14
Turn left onto Ingleside Avenue
1.6 mi · 3 min · Ingleside Avenue
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15
Continue on 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 Herald Harbor 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.
Generals Highway
Keep slight left
10.4 mi · 00h 12m
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.
Showers And Thunderstorms leaving Herald Harbor 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 Herald Harbor to Gwynn Oak?
The road trip is about 29.9 miles (48.1 km) and usually takes 00h 38m 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?
Ferndale is a useful midpoint, sitting about 14.1 miles from Herald Harbor and 15.7 miles from Gwynn Oak.
How much longer is the road route than the straight-line distance?
The direct path is about 20.4 miles (32.8 km), while the road route adds roughly 9.5 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 7:14 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.29 one way or $8.58 round trip. Estimated CO2 is about 9.3 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Herald Harbor and Rain Showers near Gwynn Oak.
Stop Ideas Near Ferndale
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City of Bowie
Baltimore City Hall
Relay Town Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Ferndale.
BWI Rail Station
Pennsylvania Station
New Carrollton station
Kent Island, MD
Flight Path Map
This map shows the direct air route between Herald Harbor and Gwynn Oak. Straight-line distance: 20.37 mi (32.79 km).
#1 Herald Harbor
Census designated place
| Population | 2,603 |
| Coordinates | 39.0537200, -76.5691300 |
| Altitude | 15 |
| 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: 48 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 59m |
| 40 mph (64.37 km/h) | 00h 44m |
| 50 mph (80.47 km/h) | 00h 35m |
| 60 mph (96.56 km/h) | 00h 29m |
| 70 mph (112.65 km/h) | 00h 25m |
| 80 mph (129 km/h) | 00h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $4.29 | $8.58 |
| Mid-grade | $4.60 | $4.83 | $9.66 |
| Premium | $4.95 | $5.20 | $10.40 |
| Diesel | $5.98 | $6.28 | $12.56 |
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.