Last recalculated Apr 16, 2026
Drive Time
1h 2m
Distance
42.8 mi
69 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$7
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Rockville, MD
Jonathan Borba
Londontowne, MD
Jonathan Borba
The drive from Rockville, MD to Londontowne, MD covers 42.8 miles and takes about 1h 2m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Capital Beltway, John Hanson Highway, I 270 for much of the mileage, and the overall profile is turn-heavy local drive. The longest uninterrupted segment is about 16.3 miles on Capital Beltway. At current regular gas prices, budget about $7.10 one way before food or hotel costs.
Weekend Trip
Doable as a same-day drive at 1h 2m. Total distance: 42.8 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 2m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
Scenic Drive
Turn-heavy local drive route profile with national parks nearby.
Expect a 1h 2m drive with frequent turns across 42.8 miles of local and secondary roads.
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 1 miles in.
Demanding - stay alert through the decision-heavy sections
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 42.8 miles you will encounter 12 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 1 miles: Lane positioning matters here; at 3.9 miles (I 270): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 23 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
These are the spots where you need to pay the most attention. Preview them before you drive.
Take the ramp toward I 270 South
Lane positioning matters here
Keep slight left at fork onto I 270 toward I 270 South: Silver Spring, College Park
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Take the exit toward US 50 East: Annapolis
Exit ramp - move to the correct lane early. Lane positioning matters here
Take the exit toward MD 424: Davidsonville, Crofton
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Keep slight right at fork toward MD 424 South: Davidsonville Road, Davidsonville
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Rockville, MD and Londontowne, MD, road signs point toward College Park, Crofton and Davidsonville.
College Park
Crofton
Davidsonville
| Road | Distance | Duration |
|---|---|---|
| Capital Beltway | 16.3 mi | 21m |
| John Hanson Highway | 10.4 mi | 11m |
| I 270 | 5.3 mi | 7m |
| Central Avenue | 3.6 mi | 6m |
| Davidsonville Road | 3 mi | 5m |
| Great Falls Road | 0.6 mi | 1m |
| Stepneys Lane | 0.5 mi | 1m |
| Londontown Road | 0.4 mi | 1m |
Step-by-step road directions between Rockville, MD and Londontowne, MD.
Start on South Washington Street
Turn left onto West Montgomery Avenue
Continue on Great Falls Road
Turn right onto MD 189
Continue on MD 189
Take the ramp
Merge onto I 270
Keep slight left at fork onto I 270
Merge onto I 495
Take the exit
Merge onto US 50
Take the exit
Keep slight right at fork
Turn straight onto MD 424
Turn left onto MD 214
Turn left onto Stepneys Lane
Continue on Londontown Road
Turn right onto Tacoma Road
Arrive at destination
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 21.4 mi from Rockville, MD · 29m into the drive
Mid-route town
Meal stop
21 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 42.8 miles helps settle the day before fatigue starts building.
The midpoint is around 21.4 miles from Rockville, MD, which is a good place for a longer meal and fuel stop.
The final approach into Londontowne, MD usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Regular Gas
$7.10 one way
$14.19 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.61 | $7.77 | $15.54 |
| premium | $4.93 | $8.30 | $16.60 |
| diesel | $5.61 | $9.45 | $18.90 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$7
Estimated CO2 emission: 15 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $4 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 12.8 | 0 | $4.49 | $2.05 |
| Efficient EV | 10.7 | 0 | $3.74 | $1.71 |
| EV Truck/SUV | 17.1 | 0 | $5.99 | $2.74 |
Gas CO2
15 kg
EV CO2
5 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.
Current conditions at both ends of the drive.
Origin
Evening in Rockville on Thursday
Local time
5:28 PM
EDT
Current temp
92°F
Mostly Sunny
Destination
Evening in Londontowne on Thursday
Local time
5:28 PM
EDT
Current temp
53°F
Unavailable
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
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.
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