How far is College Park, MD from Potomac, MD?
The driving distance from College Park, MD to Potomac, MD is about 18.6 miles (30 km), with a travel time of about 00h 33m by car.
- The straight-line flight distance is about 14.8 miles (23.8 km).
- For a round trip, plan for roughly 01h 06m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 33m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Sunny
Sunny
Driving Route Map
The map below follows the saved road route between College Park and Potomac.
Turn-by-Turn Driving Directions
Step-by-step road directions between College Park and Potomac.
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1
Start on Knox Road
2096 ft · 1 min · Knox Road
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2
Turn right onto Mowatt Lane
2151 ft · 1 min · Mowatt Lane
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3
Enter the roundabout and take exit 3 toward Campus Drive
52 m · 5 sec · Campus Drive
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4
Exit the roundabout onto Campus Drive
1915 ft · 1 min · Campus Drive
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5
Turn right onto Adelphi Road
2.3 mi · 5 min · Adelphi Road
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6
Turn right onto New Hampshire Avenue
1615 ft · 37 sec · New Hampshire Avenue
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7
Take the ramp slight right toward I 495: Northern Virginia, Silver Spring, Baltimore, College Park
798 ft · 20 sec
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8
Keep slight left to continue on I 495 West: Northern Virginia, Silver Spring
1794 ft · 44 sec
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9
Merge slight left onto Capital Beltway
7.6 mi · 10 min · Capital Beltway
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10
Keep slight left to continue on Capital Beltway
1.3 km · 1 min · Capital Beltway
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11
Take the exit slight right toward MD 187: Rockville, Bethesda
1179 ft · 29 sec
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12
Keep slight right to continue on MD 187 North: Old Georgetown Road, Rockville
137 m · 11 sec
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13
Turn straight onto Old Georgetown Road
3019 ft · 1 min · Old Georgetown Road
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14
Turn left onto Democracy Boulevard
4.4 mi · 8 min · Democracy Boulevard
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15
Turn left onto Falls Road
1.1 km · 1 min · Falls Road
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16
Turn left
25 m · 6 sec
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17
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between College Park and Potomac.
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.
Capital Beltway
Merge slight left onto Capital Beltway
7.55 mi · 00h 10m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Sunny leaving College Park and Sunny near Potomac.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from College Park to Potomac?
The road trip is about 18.6 miles (30 km) and usually takes 00h 33m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Forest Glen is a useful midpoint, sitting about 9.3 miles from College Park and 9.3 miles from Potomac.
How much longer is the road route than the straight-line distance?
The direct path is about 14.8 miles (23.8 km), while the road route adds roughly 3.8 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:24 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.70 one way or $5.39 round trip. Estimated CO2 is about 5.9 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around College Park and Sunny near Potomac.
Stop Ideas Near Forest Glen
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 Forest Glen.
Rockville station
Washington Union Station
New Carrollton station
Union Station
Flight Path Map
This map shows the direct air route between College Park and Potomac. Straight-line distance: 14.81 mi (23.84 km).
#1 College Park
Public research university in the city of College Park in Prince George's County, Maryland
| Population | 32,173 |
| Coordinates | 38.9806700, -76.9369200 |
| Altitude | 21 |
| Country | United States |
#2 Potomac
Census-designated place in Montgomery County, Maryland, United States
| Population | 44,965 |
| Coordinates | 39.0181700, -77.2085900 |
| Altitude | 110 |
| Country | United States |
End: Potomac (-77.20859, 39.01817)
Estimated Travel Time
Distance: 30 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 37m |
| 40 mph (64.37 km/h) | 00h 27m |
| 50 mph (80.47 km/h) | 00h 22m |
| 60 mph (96.56 km/h) | 00h 18m |
| 70 mph (112.65 km/h) | 00h 15m |
| 80 mph (129 km/h) | 00h 13m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $2.70 | $5.39 |
| Mid-grade | $4.60 | $3.04 | $6.07 |
| Premium | $4.95 | $3.27 | $6.54 |
| Diesel | $5.98 | $3.95 | $7.89 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.