How far is Rock Hall, MD from Gaithersburg, MD?
The driving distance from Rock Hall, MD to Gaithersburg, MD is about 29.8 miles (47.9 km), with a travel time of about 00h 38m by car.
- The straight-line flight distance is about 19.4 miles (31.3 km).
- For a round trip, plan for roughly 01h 17m 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.
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 Maryland, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Rock Hall and Gaithersburg.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rock Hall and Gaithersburg.
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1
Start on Rock Hall Road
2822 ft · 2 min · Rock Hall Road
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2
Turn right onto Tuscarora Road
3.9 mi · 6 min · Tuscarora Road
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3
At the end of the road, turn right onto Dickerson Road
4.8 mi · 7 min · Dickerson Road
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4
Continue on Darnestown Road
13.5 mi · 22 min · Darnestown Road
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5
Turn left onto Quince Orchard Road
3.5 mi · 6 min · Quince Orchard Road
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6
Turn right onto North Frederick Avenue
1.4 km · 2 min · North Frederick Avenue
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7
Turn right
26 m · 6 sec
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8
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Rock Hall and Gaithersburg.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Darnestown Road
Continue on Darnestown Road
13.5 mi · 00h 22m
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.
Rain Showers leaving Rock Hall and Rain Showers Likely near Gaithersburg.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rock Hall to Gaithersburg?
The road trip is about 29.8 miles (47.9 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?
Poolesville is a useful midpoint, sitting about 13.5 miles from Rock Hall and 16.2 miles from Gaithersburg.
How much longer is the road route than the straight-line distance?
The direct path is about 19.4 miles (31.3 km), while the road route adds roughly 10.4 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 7:12 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 Rain Showers around Rock Hall and Rain Showers Likely near Gaithersburg.
Stop Ideas Near Poolesville
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Griffith Park at City Hall
Gaithersburg City Hall
Herndon Old Town Hall
Town Hall Garage
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Poolesville.
Rockville station
Frederick Airport, MD
Frederick, MD
Harpers Ferry
Flight Path Map
This map shows the direct air route between Rock Hall and Gaithersburg. Straight-line distance: 19.42 mi (31.26 km).
#1 Rock Hall
Town of the United States
| Population | 1,255 |
| Coordinates | 39.2687100, -77.5261000 |
| Altitude | 72 |
| 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: 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.