How far is Olney, MD from Langley Park, MD?
The driving distance from Olney, MD to Langley Park, MD is about 15.3 miles (24.7 km), with a travel time of about 00h 26m by car.
- The straight-line flight distance is about 12.2 miles (19.7 km).
- For a round trip, plan for roughly 00h 53m 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 26m.
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.
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Olney and Langley Park.
Turn-by-Turn Driving Directions
Step-by-step road directions between Olney and Langley Park.
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1
Start on Georgia Avenue
2.6 mi · 5 min · Georgia Avenue
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2
Turn slight left onto MD 200 Toll East
152 m · 21 sec
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3
Take the ramp slight left toward MD 200 Toll East
2116 ft · 52 sec
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4
Merge slight left onto Intercounty Connector
4.4 mi · 5 min · Intercounty Connector
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5
Take the exit slight right toward MD 650: Ashton, White Oak
1269 ft · 31 sec
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6
Keep slight right to continue on MD 650 South: White Oak
110 m · 9 sec
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7
Turn straight onto New Hampshire Avenue
7 mi · 12 min · New Hampshire Avenue
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8
Turn left onto Merrimac Drive
735 ft · 33 sec · Merrimac Drive
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9
Turn right onto 14th Avenue
1477 ft · 41 sec · 14th Avenue
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10
Continue on Kanawha Street
779 ft · 28 sec · Kanawha Street
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11
Turn left onto 15th Avenue
96 m · 14 sec · 15th Avenue
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12
Arrive at your destination
0 m · 1 sec · 15th Avenue
Car Route Details
A richer read on the saved driving route between Olney and Langley Park.
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.
New Hampshire Avenue
Turn straight onto New Hampshire Avenue
6.97 mi · 00h 12m
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.
Rain Showers leaving Olney and Rain Showers Likely near Langley Park.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Olney to Langley Park?
The road trip is about 15.3 miles (24.7 km) and usually takes 00h 26m 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?
Colesville is a useful midpoint, sitting about 7.7 miles from Olney and 7.7 miles from Langley Park.
How much longer is the road route than the straight-line distance?
The direct path is about 12.2 miles (19.7 km), while the road route adds roughly 3.1 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 7:36 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.21 one way or $4.41 round trip. Estimated CO2 is about 4.8 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Olney and Rain Showers Likely near Langley Park.
Stop Ideas Near Colesville
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
United States Capitol
D C Government
The John Wilson Building
Town Hall Liquor And Bar
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Colesville.
Rockville station
New Carrollton station
Washington Union Station
BWI Rail Station
Flight Path Map
This map shows the direct air route between Olney and Langley Park. Straight-line distance: 12.25 mi (19.72 km).
#1 Olney
Unincorporated area of Montgomery County, Maryland, United States of America
| Population | 33,844 |
| Coordinates | 39.1531600, -77.0669200 |
| Altitude | 165 |
| Country | United States |
#2 Langley Park
Census designated place in Maryland, United States
| Population | 18,755 |
| Coordinates | 38.9887200, -76.9813600 |
| Altitude | 46 |
| Country | United States |
End: Langley Park (-76.98136, 38.98872)
Estimated Travel Time
Distance: 25 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 30m |
| 40 mph (64.37 km/h) | 00h 23m |
| 50 mph (80.47 km/h) | 00h 18m |
| 60 mph (96.56 km/h) | 00h 15m |
| 70 mph (112.65 km/h) | 00h 13m |
| 80 mph (129 km/h) | 00h 11m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $2.21 | $4.41 |
| Mid-grade | $4.60 | $2.48 | $4.97 |
| Premium | $4.95 | $2.68 | $5.35 |
| Diesel | $5.98 | $3.23 | $6.46 |
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.