How far is Calverton, MD from Gwynn Oak, MD?
The driving distance from Calverton, MD to Gwynn Oak, MD is about 28.2 miles (45.4 km), with a travel time of about 00h 37m by car.
- The straight-line flight distance is about 23.1 miles (37.1 km).
- For a round trip, plan for roughly 01h 14m 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 37m.
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.
Unincorporated community in Howard County, Maryland, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Cloudy
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Calverton and Gwynn Oak.
Turn-by-Turn Driving Directions
Step-by-step road directions between Calverton and Gwynn Oak.
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1
Start on Dunnington Road
2292 ft · 2 min · Dunnington Road
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2
At the end of the road, turn left onto Briggs Chaney Road
1.9 mi · 4 min · Briggs Chaney Road
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3
Take the ramp right toward US 29 North
1374 ft · 38 sec
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4
Merge slight left onto Columbia Pike
16.1 mi · 21 min · Columbia Pike
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5
Take the exit slight right toward I 70 East: Baltimore
1.1 km · 1 min
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6
Merge slight left
6 mi · 7 min
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7
Take the exit slight right toward Security Boulevard
1469 ft · 36 sec
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8
Turn straight onto Security Boulevard
916 ft · 22 sec · Security Boulevard
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9
Turn right onto North Forest Park Avenue
1.4 mi · 4 min · North Forest Park Avenue
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10
Turn slight left onto Hillsdale Road
1.5 km · 3 min · Hillsdale Road
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11
Turn right onto Haddon Avenue
54 m · 11 sec · Haddon Avenue
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12
Turn left
18 m · 4 sec
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13
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Calverton 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.
Columbia Pike
Merge slight left onto Columbia Pike
16.1 mi · 00h 21m
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.
Partly Cloudy leaving Calverton and Mostly Cloudy near Gwynn Oak.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Calverton to Gwynn Oak?
The road trip is about 28.2 miles (45.4 km) and usually takes 00h 37m 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?
Ellicott City is a useful midpoint, sitting about 14.1 miles from Calverton and 14.1 miles from Gwynn Oak.
How much longer is the road route than the straight-line distance?
The direct path is about 23.1 miles (37.1 km), while the road route adds roughly 5.1 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:16 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.09 one way or $8.17 round trip. Estimated CO2 is about 8.9 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy around Calverton and Mostly Cloudy near Gwynn Oak.
Flight Path Map
This map shows the direct air route between Calverton and Gwynn Oak. Straight-line distance: 23.03 mi (37.06 km).
#1 Calverton
Unincorporated area in Montgomery and Prince George's County, Maryland, United States
| Population | 17,724 |
| Coordinates | 39.0576100, -76.9358100 |
| Altitude | 84 |
| 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: 45 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 56m |
| 40 mph (64.37 km/h) | 00h 42m |
| 50 mph (80.47 km/h) | 00h 33m |
| 60 mph (96.56 km/h) | 00h 28m |
| 70 mph (112.65 km/h) | 00h 24m |
| 80 mph (129 km/h) | 00h 21m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $4.09 | $8.17 |
| Mid-grade | $4.60 | $4.60 | $9.20 |
| Premium | $4.95 | $4.95 | $9.91 |
| Diesel | $5.98 | $5.98 | $11.96 |
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 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.