Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
20m
Distance
12.8 mi
21 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$2
one way
EV Charging
Good
6 stations
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Rockville, MD
Jonathan Borba
Four Corners, MD
Gabriel Ramos
Rockville, MD to Four Corners, MD is 12.8 miles and takes about 20m via I 270, with a fuel budget near $2 and enough daylight to finish in a day. This short trip stays within Maryland's Northeast region, offering a straightforward drive between two nearby communities. Given its minimal distance and duration, this route is ideal for a quick errand or a simple transfer, allowing for plenty of flexibility in your schedule. Expect a primarily functional journey that gets you from point A to point B efficiently.
Weekend Trip
Doable as a same-day drive at 20m. Total distance: 12.8 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
20m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (42%). Some complex stretches to watch for.
Scenic Drive
Mixed drive route profile with national parks nearby.
This drive presents a mixed bag, with 42% of the journey taking place on highways. You'll experience a 5.3-mile stretch on I 270, offering a taste of faster driving before transitioning. The overall profile is a mixed drive, meaning you'll likely encounter both quicker highway sections and potentially more stop-and-go traffic or slower local roads as you approach your destination. Be prepared for a varied driving experience that isn't solely focused on high-speed travel.
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 early in the drive near West Montgomery Avenue.
Focused - busy navigation packed into a short drive
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 9 decision points packed into just 12.8 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 20m.
Where does it get tricky?
The main spots that need attention: near the start (West Montgomery Avenue): Navigation decision point; 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.
These are the spots where you need to pay the most attention. Preview them before you drive.
Turn left onto West Montgomery Avenue
Navigation decision point
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
Merge onto I 495 / Capital Beltway
Merge point - match speed before joining. Lane positioning matters here
Take the exit toward US 29 North: Columbia
Exit ramp - move to the correct lane early. Lane positioning matters here
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Rockville, MD to Four Corners, MD, road signs begin pointing toward College Park along the way.
College Park
| Road | Distance | Duration |
|---|---|---|
| I 270 | 5.3 mi | 7m |
| Capital Beltway | 5.3 mi | 7m |
| Great Falls Road | 0.6 mi | 1m |
| Colesville Road | 0.3 mi | <1m |
| University Boulevard East | 0.2 mi | <1m |
| West Montgomery Avenue | 0.2 mi | <1m |
| Falls Road | 0.2 mi | <1m |
| South Washington Street | <0.1 mi | <1m |
Step-by-step road directions between Rockville, MD and Four Corners, 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 29
Turn right onto MD 193
Continue on MD 193
Arrive at destination
Regular Gas
$2.12 one way
$4.24 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.61 | $2.32 | $4.65 |
| premium | $4.93 | $2.48 | $4.96 |
| diesel | $5.61 | $2.83 | $5.65 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$2
Estimated CO2 emission: 4.5 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $1 in charging · 0 stops · 75% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 3.8 | 0 | $1.34 | $0.61 |
| Efficient EV | 3.2 | 0 | $1.12 | $0.51 |
| EV Truck/SUV | 5.1 | 0 | $1.79 | $0.82 |
Gas CO2
4 kg
EV CO2
1 kg (75% 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
Late night in Rockville on Saturday
Local time
1:49 AM
EDT
Current temp
92°F
Mostly Sunny
Destination
Late night in Four Corners on Saturday
Local time
1:49 AM
EDT
Current temp
76°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.
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
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