How far is Brentwood, MD from Frederick, MD?
The driving distance from Brentwood, MD to Frederick, MD is about 48.7 miles (78.4 km), with a travel time of about 01h 05m by car.
- The straight-line flight distance is about 40.6 miles (65.4 km).
- For a round trip, plan for roughly 02h 10m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EST.
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 05m.
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.
The second most populous city in Montgomery County, Maryland.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Brentwood and Frederick.
Turn-by-Turn Driving Directions
Step-by-step road directions between Brentwood and Frederick.
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1
Start on 38th Street
1.1 km · 2 min · 38th Street
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2
Turn left onto Hamilton Street
1.1 km · 1 min · Hamilton Street
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3
Turn right onto Ager Road
1.2 mi · 3 min · Ager Road
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4
Turn straight onto East-West Highway
675 ft · 16 sec · East-West Highway
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5
Turn right onto Riggs Road
1.3 km · 2 min · Riggs Road
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6
Turn left onto University Boulevard East
2.7 mi · 6 min · University Boulevard East
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7
Take the ramp right toward I 495 West: Northern Virginia
896 ft · 22 sec
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8
Merge slight left onto Capital Beltway
6 mi · 8 min · Capital Beltway
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9
Keep slight right to continue on I 270 North: Frederick
3.6 mi · 5 min
-
10
Keep slight right to continue on I 270 North
27.3 mi · 35 min
-
11
Take the exit slight right toward MD 85: Frederick, Buckeystown
1678 ft · 49 sec
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12
Turn right onto Buckeystown Pike
1.3 mi · 3 min · Buckeystown Pike
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13
Continue on Buckeystown Pike
1354 ft · 31 sec · Buckeystown Pike
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14
Continue on East Street
773 ft · 15 sec · East Street
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15
Enter the roundabout and take exit 1 toward East Street
36 m · 2 sec · East Street
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16
Exit the roundabout onto East Street
1640 ft · 33 sec · East Street
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17
Turn left onto East South Street
610 ft · 24 sec · East South Street
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18
Turn right onto South Carroll Street
1280 ft · 45 sec · South Carroll Street
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19
Turn left onto East Patrick Street
812 ft · 25 sec · East Patrick Street
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20
Arrive at your destination
0 m · 1 sec · East Patrick Street
Car Route Details
A richer read on the saved driving route between Brentwood and Frederick.
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 270 North
Keep slight right to continue on I 270 North
27.3 mi · 00h 35m
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.
Sunny leaving Brentwood and Sunny near Frederick.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Brentwood to Frederick?
The road trip is about 48.7 miles (78.4 km) and usually takes 01h 05m 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?
Gaithersburg is a useful midpoint, sitting about 23.1 miles from Brentwood and 25.7 miles from Frederick.
How much longer is the road route than the straight-line distance?
The direct path is about 40.6 miles (65.4 km), while the road route adds roughly 8.1 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 EST. If you want a more comfortable same-day return, try to leave by 4:20 PM EST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.75 one way or $13.50 round trip. Estimated CO2 is about 15.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Brentwood and Sunny near Frederick.
Stop Ideas Near Gaithersburg
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Griffith Park at City Hall
Gaithersburg City Hall
City of Rockville City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Gaithersburg.
Rockville station
Washington Union Station
Frederick Airport, MD
Frederick, MD
Flight Path Map
This map shows the direct air route between Brentwood and Frederick. Straight-line distance: 40.63 mi (65.38 km).
#1 Brentwood
Brentwood is a place in Maryland, United States.
| Population | 0 |
| Coordinates | 38.9431700, -76.9566400 |
| Altitude | 8 |
| Country | United States |
#2 Frederick
The second most populous city in Frederick County, Maryland.
| Population | 73,308 |
| Coordinates | 39.4142700, -77.4105400 |
| Altitude | 87 |
| Country | United States |
End: East Patrick Street (-77.410551, 39.414165)
Estimated Travel Time
Distance: 78 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 37m |
| 40 mph (64.37 km/h) | 01h 13m |
| 50 mph (80.47 km/h) | 00h 58m |
| 60 mph (96.56 km/h) | 00h 48m |
| 70 mph (112.65 km/h) | 00h 41m |
| 80 mph (129 km/h) | 00h 36m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.92 | $6.75 | $13.50 |
| Mid-grade | $4.55 | $7.82 | $15.65 |
| Premium | $4.87 | $8.37 | $16.75 |
| Diesel | $6.28 | $10.80 | $21.60 |
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 · Nov 09, 2026