How far is Havre de Grace, MD from Gaithersburg, MD?
The driving distance from Havre de Grace, MD to Gaithersburg, MD is about 79.5 miles (127.9 km), with a travel time of about 01h 24m by car.
- The straight-line flight distance is about 65.6 miles (105.6 km).
- For a round trip, plan for roughly 02h 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 01h 24m.
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.
Village in Frederick County, Maryland, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Havre de Grace and Gaithersburg.
Turn-by-Turn Driving Directions
Step-by-step road directions between Havre de Grace and Gaithersburg.
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1
Start on North Union Avenue
2108 ft · 56 sec · North Union Avenue
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2
Turn right onto Revolution Street
1.4 mi · 3 min · Revolution Street
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3
Turn left onto Pulaski Highway
2.3 mi · 4 min · Pulaski Highway
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4
Continue on North Philadelphia Boulevard
1428 ft · 22 sec · North Philadelphia Boulevard
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5
Take the exit straight toward MD 22 West
917 ft · 26 sec
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6
Merge slight left onto Aberdeen Thruway
1.9 mi · 3 min · Aberdeen Thruway
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7
Take the exit straight toward I 95 South: Baltimore
1 mi · 2 min
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8
Merge slight left onto John F. Kennedy Memorial Highway
16.1 mi · 19 min · John F. Kennedy Memorial Highway
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9
Keep slight left to continue on Express Toll Lanes
6.5 mi · 8 min · Express Toll Lanes
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10
Keep slight left to continue on Express Toll Lanes
1.2 mi · 2 min · Express Toll Lanes
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11
Merge slight right onto Harbor Tunnel Thruway
3.8 mi · 5 min · Harbor Tunnel Thruway
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12
Continue on Baltimore Harbor Tunnel
1.4 mi · 2 min · Baltimore Harbor Tunnel
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13
Continue on Harbor Tunnel Thruway
2.2 mi · 3 min · Harbor Tunnel Thruway
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14
Continue on Harbor Tunnel Throughway
2567 ft · 40 sec · Harbor Tunnel Throughway
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15
Keep slight left to continue on Harbor Tunnel Throughway
2671 ft · 42 sec · Harbor Tunnel Throughway
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16
Continue on Harbor Tunnel Thruway
6 mi · 7 min · Harbor Tunnel Thruway
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17
Merge slight left
13.6 mi · 16 min
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18
Take the exit slight right toward MD 200 Toll West
1.5 km · 1 min
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19
Merge slight left onto Intercounty Connector
9.5 mi · 12 min · Intercounty Connector
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20
Continue on Intercounty Connector
6.2 mi · 8 min · Intercounty Connector
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21
Continue straight
2718 ft · 41 sec
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22
Take the exit slight right toward MD 355: Rockville, Gaithersburg
1906 ft · 47 sec
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23
Turn right onto Frederick Road
1160 ft · 27 sec · Frederick Road
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24
Continue on South Frederick Avenue
1.6 mi · 3 min · South Frederick Avenue
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25
Turn left
26 m · 6 sec
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26
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Havre de Grace and Gaithersburg.
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.
John F. Kennedy Memorial Highway
Merge slight left onto John F. Kennedy Memorial Highway
16.1 mi · 00h 19m
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 Havre de Grace and Sunny near Gaithersburg.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Havre de Grace to Gaithersburg?
The road trip is about 79.5 miles (127.9 km) and usually takes 01h 24m 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?
Rosemont is a useful midpoint, sitting about 39.2 miles from Havre de Grace and 40.2 miles from Gaithersburg.
How much longer is the road route than the straight-line distance?
The direct path is about 65.6 miles (105.6 km), while the road route adds roughly 13.9 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 3:40 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.44 one way or $22.88 round trip. Estimated CO2 is about 24.9 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Havre de Grace and Sunny near Gaithersburg.
Stop Ideas Near Rosemont
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 Rosemont.
BWI Rail Station
Pennsylvania Station
New Carrollton station
Kent Island, MD
Flight Path Map
This map shows the direct air route between Havre de Grace and Gaithersburg. Straight-line distance: 65.59 mi (105.56 km).
#1 Havre de Grace
City in Maryland, USA
| Population | 14,147 |
| Coordinates | 39.5492800, -76.0916200 |
| Altitude | 17 |
| Country | United States |
#2 Gaithersburg
The second most populous city in Montgomery County, Maryland.
| Population | 67,741 |
| Coordinates | 39.1434400, -77.2013700 |
| Altitude | 153 |
| Country | United States |
End: (-77.201269, 39.143361)
Estimated Travel Time
Distance: 128 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 38m |
| 40 mph (64.37 km/h) | 01h 59m |
| 50 mph (80.47 km/h) | 01h 35m |
| 60 mph (96.56 km/h) | 01h 19m |
| 70 mph (112.65 km/h) | 01h 08m |
| 80 mph (129 km/h) | 00h 59m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $11.44 | $22.88 |
| Mid-grade | $4.60 | $12.88 | $25.75 |
| Premium | $4.95 | $13.87 | $27.74 |
| Diesel | $5.98 | $16.74 | $33.49 |
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 16, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.