How far is Mountain Lake Park, MD from Rockville, MD?
The driving distance from Mountain Lake Park, MD to Rockville, MD is about 162.4 miles (261.3 km), with a travel time of about 02h 51m by car.
- The straight-line flight distance is about 121.2 miles (195.1 km).
- For a round trip, plan for roughly 05h 43m 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 02h 51m.
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.
Town in Maryland
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Rain Showers
Driving Route Map
The map below follows the saved road route between Mountain Lake Park and Rockville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mountain Lake Park and Rockville.
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1
Start on Maryland Highway
6.3 mi · 10 min · Maryland Highway
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2
Continue on Maryland Highway
14.3 mi · 21 min · Maryland Highway
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3
Continue on Pratt Street
1.5 mi · 2 min · Pratt Street
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4
Continue on Front Street
1627 ft · 33 sec · Front Street
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5
Turn left onto New Georges Creek Road Southwest
7.4 mi · 12 min · New Georges Creek Road Southwest
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6
Continue on West Main Street
1 mi · 3 min · West Main Street
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7
Continue on Lower Georges Creek Road Southwest
1.7 mi · 4 min · Lower Georges Creek Road Southwest
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8
Continue on New Georges Creek Road Southwest
1579 ft · 40 sec · New Georges Creek Road Southwest
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9
Turn right onto Paradise Street Southwest
1 km · 2 min · Paradise Street Southwest
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10
Turn straight onto New Georges Creek Road Southwest
3.3 mi · 5 min · New Georges Creek Road Southwest
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11
Take the ramp slight right
2717 ft · 1 min
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12
Merge slight left onto National Freeway
45.7 mi · 52 min · National Freeway
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13
Continue on Dwight D Eisenhower Highway
4.7 mi · 5 min · Dwight D Eisenhower Highway
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14
Continue on I 70, US 40 (Dwight D Eisenhower Highway)
3.3 mi · 4 min · I 70, US 40 (Dwight D Eisenhower Highway)
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15
Continue on Dwight D Eisenhower Highway
43.5 mi · 47 min · Dwight D Eisenhower Highway
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16
Take the exit slight right toward I 270 South: Washington
2112 ft · 52 sec
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17
Continue on Eisenhower Memorial Highway
22.9 mi · 29 min · Eisenhower Memorial Highway
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18
Keep slight right
2.5 mi · 3 min
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19
Take the exit slight right toward MD 28: West Montgomery Avenue
1074 ft · 28 sec
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20
Turn left onto Key West Highway
957 ft · 33 sec · Key West Highway
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21
Continue on West Montgomery Avenue
1.5 km · 2 min · West Montgomery Avenue
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22
Turn left onto West Montgomery Avenue
1159 ft · 38 sec · West Montgomery Avenue
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23
Turn right onto South Washington Street
19 m · 2 sec · South Washington Street
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24
Arrive at your destination
0 m · 1 sec · South Washington Street
Car Route Details
A richer read on the saved driving route between Mountain Lake Park and Rockville.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
National Freeway
Merge slight left onto National Freeway
45.7 mi · 00h 52m
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.
Rain Showers Likely leaving Mountain Lake Park and Rain Showers near Rockville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mountain Lake Park to Rockville?
The road trip is about 162.4 miles (261.3 km) and usually takes 02h 51m 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?
Hancock is a useful midpoint, sitting about 81 miles from Mountain Lake Park and 81.4 miles from Rockville.
How much longer is the road route than the straight-line distance?
The direct path is about 121.2 miles (195.1 km), while the road route adds roughly 41.2 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 12:46 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $23.41 one way or $46.83 round trip. Estimated CO2 is about 50.9 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Mountain Lake Park and Rain Showers near Rockville.
Stop Ideas Near Hancock
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 Hancock.
Hancock, MD
Martinsburg station
Hagerstown, MD
Cumberland, MD
Flight Path Map
This map shows the direct air route between Mountain Lake Park and Rockville. Straight-line distance: 121.24 mi (195.11 km).
#1 Mountain Lake Park
Town of the United States
| Population | 2,065 |
| Coordinates | 39.3984300, -79.3817100 |
| Altitude | 748 |
| Country | United States |
#2 Rockville
The most populous city in Montgomery County, Maryland.
| Population | 69,512 |
| Coordinates | 39.0840000, -77.1527600 |
| Altitude | 137 |
| Country | United States |
End: South Washington Street (-77.152887, 39.083997)
Estimated Travel Time
Distance: 261 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 24m |
| 40 mph (64.37 km/h) | 04h 03m |
| 50 mph (80.47 km/h) | 03h 14m |
| 60 mph (96.56 km/h) | 02h 42m |
| 70 mph (112.65 km/h) | 02h 19m |
| 80 mph (129 km/h) | 02h 01m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $23.41 | $46.83 |
| Mid-grade | $4.60 | $26.35 | $52.70 |
| Premium | $4.95 | $28.39 | $56.77 |
| Diesel | $5.98 | $34.27 | $68.53 |
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.