How far is Marlow Heights, MD from Rockville, MD?
The driving distance from Marlow Heights, MD to Rockville, MD is about 30 miles (48.2 km), with a travel time of about 00h 46m by car.
- The straight-line flight distance is about 20.4 miles (32.8 km).
- For a round trip, plan for roughly 01h 32m 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 00h 46m.
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.
Unincorporated area in Montgomery County, Maryland, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Rain Showers
Driving Route Map
The map below follows the saved road route between Marlow Heights and Rockville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Marlow Heights and Rockville.
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1
Start on Lyons Street
805 ft · 22 sec · Lyons Street
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2
Continue on 26th Avenue
154 m · 18 sec · 26th Avenue
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3
Turn right onto Iverson Street
1885 ft · 42 sec · Iverson Street
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4
Turn left onto Branch Avenue
1679 ft · 54 sec · Branch Avenue
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5
Keep slight right to continue on Branch Avenue
2162 ft · 39 sec · Branch Avenue
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6
Take the exit left
982 ft · 28 sec
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7
Enter the roundabout and take exit 1 toward Naylor Road
39 m · 3 sec · Naylor Road
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8
Exit the roundabout onto Naylor Road
116 m · 13 sec · Naylor Road
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9
Enter the roundabout and take exit 1 toward Naylor Road
15 m · 1 sec · Naylor Road
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10
Exit the roundabout onto Naylor Road
1543 ft · 51 sec · Naylor Road
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11
Turn straight
90 m · 10 sec
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12
Turn slight right onto Naylor Road Southeast
1.1 km · 2 min · Naylor Road Southeast
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13
Turn left onto Marion Barry Avenue Southeast
1.2 mi · 3 min · Marion Barry Avenue Southeast
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14
Turn right onto Martin Luther King Junior Avenue Southeast
2387 ft · 54 sec · Martin Luther King Junior Avenue Southeast
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15
Continue on 11th Street Southeast
1754 ft · 52 sec · 11th Street Southeast
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16
Take the ramp left toward I 695 West
1555 ft · 30 sec
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17
Merge slight left onto Southeast Freeway
1.1 mi · 2 min · Southeast Freeway
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18
Continue on Southwest Freeway
1540 ft · 33 sec · Southwest Freeway
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19
Take the exit slight right toward Maine Avenue Southwest, 12th Street Northwest, Downtown
1102 ft · 27 sec
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20
Keep slight right to continue on 12th Street Northwest, Downtown
1010 ft · 25 sec
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21
Keep slight left to continue on D Street
156 m · 16 sec
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22
Turn right onto 12th Street Southwest
945 ft · 31 sec · 12th Street Southwest
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23
Turn left onto Independence Avenue Southwest
3105 ft · 1 min · Independence Avenue Southwest
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24
Keep slight right to continue on 17th Street Southwest
1602 ft · 43 sec · 17th Street Southwest
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25
Continue on 17th Street Northwest
1570 ft · 36 sec · 17th Street Northwest
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26
Turn left onto New York Avenue Northwest
666 ft · 13 sec · New York Avenue Northwest
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27
Continue on E Street Northwest
916 ft · 19 sec · E Street Northwest
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28
Continue on E Street Expressway
1706 ft · 21 sec · E Street Expressway
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29
Keep slight right to continue on Whitehurst Freeway
1010 ft · 25 sec
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30
Merge slight left onto Potomac Freeway
1281 ft · 27 sec · Potomac Freeway
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31
Keep slight left to continue on Rock Creek Parkway
531 ft · 13 sec
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32
Keep slight right
51 m · 4 sec
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33
Merge slight left onto 27th Street Northwest
54 m · 4 sec · 27th Street Northwest
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34
Take the exit slight left
30 m · 9 sec
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35
Merge slight right onto Whitehurst Freeway
1.3 km · 2 min · Whitehurst Freeway
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36
Turn left onto Canal Road Northwest
3.1 mi · 6 min · Canal Road Northwest
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37
Continue on Clara Barton Parkway Northwest
3.4 mi · 7 min · Clara Barton Parkway Northwest
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38
Keep slight right to continue on Cabin John Parkway
1.3 mi · 2 min · Cabin John Parkway
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39
Keep slight left to continue on Cabin John Parkway
1212 ft · 19 sec · Cabin John Parkway
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40
Merge slight left onto Capital Beltway
1.3 mi · 2 min · Capital Beltway
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41
Keep slight left to continue on I 270: Rockville, Frederick
3.1 mi · 4 min
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42
Keep slight right to continue on I 270 North
1.8 mi · 2 min
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43
Take the exit slight right toward MD 189: Falls Road
753 ft · 18 sec
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44
Keep slight right to continue on MD 189 North: Falls Road, Rockville, Town Center
567 ft · 14 sec
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45
Turn straight onto Falls Road
132 m · 21 sec · Falls Road
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46
Turn left onto Great Falls Road
1.1 km · 2 min · Great Falls Road
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47
Continue on West Montgomery Avenue
1159 ft · 38 sec · West Montgomery Avenue
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48
Turn right onto South Washington Street
19 m · 2 sec · South Washington Street
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49
Arrive at your destination
0 m · 1 sec · South Washington Street
Car Route Details
A richer read on the saved driving route between Marlow Heights and Rockville.
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.
Clara Barton Parkway Northwest
Continue on Clara Barton Parkway Northwest
3.38 mi · 00h 07m
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 leaving Marlow Heights 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 Marlow Heights to Rockville?
The road trip is about 30 miles (48.2 km) and usually takes 00h 46m 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?
Brookmont is a useful midpoint, sitting about 12.8 miles from Marlow Heights and 17.1 miles from Rockville.
How much longer is the road route than the straight-line distance?
The direct path is about 20.4 miles (32.8 km), while the road route adds roughly 9.6 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 4:58 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.33 one way or $8.66 round trip. Estimated CO2 is about 9.4 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Marlow Heights and Rain Showers near Rockville.
Stop Ideas Near Brookmont
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
United States Capitol
D C Government
THEARC: Town Hall Education Arts Recreation Campus
Town Hall Liquor And Bar
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Brookmont.
Washington Union Station
Rockville station
Union Station
New Carrollton station
Flight Path Map
This map shows the direct air route between Marlow Heights and Rockville. Straight-line distance: 20.41 mi (32.84 km).
#1 Marlow Heights
Census-designated place in Prince George's County, Maryland, United States
| Population | 5,618 |
| Coordinates | 38.8334500, -76.9516400 |
| Altitude | 79 |
| 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: 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 | $4.33 | $8.66 |
| Mid-grade | $4.60 | $4.87 | $9.75 |
| Premium | $4.95 | $5.25 | $10.50 |
| Diesel | $5.98 | $6.34 | $12.68 |
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.