Origin
Adelphi, MD
Late night in Adelphi on Sunday
Local time
12:34 AM
EDT
Current temp
74°F
Unavailable
Live forecast
Trip from Adelphi, MD to Rockville, MD
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
24m
Distance
15.8 mi
25 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$3
one way
EV Charging
Good
8 stations
Best Time to Leave
4 AM
0h 22m
★
6 AM
0h 24m
8 AM
0h 28m
10 AM
0h 25m
12 PM
0h 25m
3 PM
0h 26m
5 PM
0h 28m
8 PM
0h 23m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Adelphi, MD
Wikimedia Commons
Rockville, MD
Jonathan Borba
Trip Overview
If you are planning a trip from Adelphi to Rockville, you are looking at a quick, 15.8-mile journey that typically takes about 24 minutes. This route is perfectly suited for a single-day trip, as it is short enough to handle without any overnight stops. You can expect to spend approximately $3 on fuel, making it a very budget-friendly transit across Maryland. The drive is a straightforward, mixed-road experience connecting two major areas within the Northeast region. It serves as a practical link for commuters or travelers moving between these Maryland hubs, and you will find the simplicity of the trip allows for great flexibility in your schedule.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Capital Beltway | 7.6 mi | 9m |
| I 270 | 5.4 mi | 7m |
| Great Falls Road | 0.7 mi | 1m |
| Adelphi Road | 0.6 mi | 1m |
| New Hampshire Avenue | 0.3 mi | <1m |
| West Montgomery Avenue | 0.2 mi | <1m |
| Edwards Way | 0.1 mi | <1m |
| Riggs Road | 0.1 mi | <1m |
Longest stretch:
Capital Beltway
— 7.6 mi, about 9m
Turn-by-Turn Driving Directions
Step-by-step road directions between Adelphi, MD and Rockville, MD.
1
Start on MD 212
0.1 mi
·
14 sec
·
Riggs Road
2
Turn left onto Edwards Way
0.1 mi
·
27 sec
·
Edwards Way
3
At end of road, turn left onto Adelphi Road
0.6 mi
·
1 min
·
Adelphi Road
Use the left / right lanes.
4
Turn right onto MD 650
0.3 mi
·
36 sec
·
New Hampshire Avenue
5
Take the ramp
0.2 mi
·
19 sec
Toward I 495: Northern Virginia, Silver Spring, Baltimore, College Park
Use the straight / slight right lanes.
6
Keep slight left at fork
0.3 mi
·
43 sec
Toward I 495 West: Northern Virginia, Silver Spring
Use the slight left / slight right lanes.
7
Merge onto I 495
7.6 mi
·
9 min
·
Capital Beltway
Use the straight / slight right lanes.
8
Keep slight right at fork onto I 270
3.6 mi
·
4 min
·
I 270
Exit 35
Toward I 270 North: Frederick
Use the straight / slight right lanes.
9
Keep slight right at fork onto I 270
1.8 mi
·
2 min
·
I 270
Toward I 270 North
Use the slight right lane.
10
Take the exit
0.1 mi
·
18 sec
Exit 5
Toward MD 189: Falls Road
Use the straight / slight right lanes.
11
Keep slight right at fork
0.1 mi
·
13 sec
Toward MD 189 North: Falls Road, Rockville, Town Center
Use the slight left / slight right lanes.
12
Turn straight onto MD 189
432 ft
·
20 sec
·
Falls Road
13
Turn left onto Great Falls Road
0.7 mi
·
1 min
·
Great Falls Road
14
Continue on West Montgomery Avenue
0.2 mi
·
37 sec
·
West Montgomery Avenue
Use the left / straight / right lanes.
15
Turn right onto South Washington Street
63 ft
·
1 sec
·
South Washington Street
Use the straight / right lanes.
16
Arrive at destination
South Washington Street
Heads-up: tricky spots
5 of 125 decision points cluster between mile 0.3 and 14.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
0.3 mi into trip
|
~0m in
|
Adelphi Road
At end of road, turn left onto Adelphi Road
Lane positioning matters here
Use the left / right lanes.
7
1.1 mi into trip
|
~2m in
Take the ramp toward I 495: Northern Virginia, Silver Spring, Baltimore, College Park
Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 495: Northern Virginia, Silver Spring,...
8
1.3 mi into trip
|
~2m in
Keep slight left at fork toward I 495 West: Northern Virginia, Silver Spring
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left / slight right lanes.
Toward I 495 West: Northern Virginia, Silver Sp...
8
9.2 mi into trip
|
~13m in
|
I 270
Keep slight right at fork onto I 270 toward I 270 North: Frederick
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Exit 35
Toward I 270 North: Frederick
9
14.7 mi into trip
|
~21m in
Keep slight right at fork toward MD 189 North: Falls Road, Rockville, Town Center
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left / slight right lanes.
Toward MD 189 North: Falls Road, Rockville, Tow...
Fuel & Cost
Regular Gas
$2.62 one way
$5.24 round trip
$4.21/gal
25.4 MPG avg
6 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.61 | $2.87 | $5.74 |
| premium | $4.93 | $3.06 | $6.13 |
| diesel | $5.61 | $3.49 | $6.98 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$3
Estimated CO2 emission: 5.5 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $2 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 4.7 | 0 | $1.66 | $0.76 |
| Efficient EV | 4 | 0 | $1.38 | $0.63 |
| EV Truck/SUV | 6.3 | 0 | $2.21 | $1.01 |
Gas CO2
6 kg
EV CO2
2 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
Rockville, MD
Late night in Rockville on Sunday
Local time
12:34 AM
EDT
Current temp
57°F
Mostly Cloudy
S 10 mph
0% chance
Live forecast
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
17 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
24m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
What kind of drive is this?
This 15.8-mile transit offers a mixed driving profile, combining high-speed highway segments with local road maneuvering. You will spend roughly 34% of your time on highways, with your longest uninterrupted stretch covering 7.6 miles along the Capital Beltway. As you transition from the Beltway to I-270 and eventually onto Great Falls Road, the pace shifts from dense interstate traffic to more localized driving. Expect a variety of road types that keep you engaged, moving from the heavy flow of major arteries into the more standard flow of suburban thoroughfares. It is a functional drive that balances speed with the necessity of navigating local infrastructure.
34% highway, the rest on surface roads — varied driving throughout.
16 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 7.6 mi on Capital Beltway.
How Hard Is This Drive?
9/10
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.3 miles in near Adelphi Road.
Driving Effort
9/10
Focused - lots of decisions in a short distance, but it is over quickly
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 12 decision points packed into just 15.8 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 24m.
Where does it get tricky?
The main spots that need attention: at 0.3 miles (Adelphi Road): Lane positioning matters here; at 1.1 miles: Lane positioning matters here. Multiple destination signs - pick the right one; at 1.3 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Mostly flat terrain
456 ft
145 ft
Total Climb
691 ft
Total Descent
408 ft
Highest Point
456 ft
~16 mi in
Elevation Range
311 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Adelphi, MD and Rockville, MD, road signs point toward Silver Spring, Baltimore, College Park and Town Center.
Silver Spring
1.1 mi in
|
~2m
Baltimore
1.1 mi in
|
~2m
College Park
1.1 mi in
|
~2m
Town Center
14.7 mi in
|
~21m
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 24m. Total distance: 15.8 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
24m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (34%). Some complex stretches to watch for.
Scenic Drive
Mixed highway & surface route profile.
Frequently Asked Questions
The longest stretch is about 7.6 miles on Capital Beltway. The full list of main roads is in the Roads section above.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Rockville, MD before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: at 0.3 miles (Adelphi Road): Lane positioning matters here; at 1.1 miles: Lane positioning matters here. Multiple destination signs - pick the right one; at 1.3 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes. A round trip is manageable in a single day if you plan a break at Rockville, MD before heading back.
How this page is built
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and USGS 3DEP for elevation. See our methodology for refresh cadence and limitations.
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