How far is Mount Briar, MD from Williamsport, MD?
The driving distance from Mount Briar, MD to Williamsport, MD is about 16.5 miles (26.5 km), with a travel time of about 00h 30m by car.
- The straight-line flight distance is about 13 miles (21 km).
- For a round trip, plan for roughly 01h 00m 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 30m.
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.
Town in Washington County, Maryland, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Mount Briar and Williamsport.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mount Briar and Williamsport.
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1
Start on the route
22 m · 11 sec
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2
Turn left onto Mount Briar Road
5 m · 5 sec · Mount Briar Road
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3
Turn right onto Porterstown Road
2.9 mi · 7 min · Porterstown Road
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4
At the end of the road, turn left onto Shepherdstown Pike
1.3 mi · 2 min · Shepherdstown Pike
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5
Continue on East Main Street
1033 ft · 37 sec · East Main Street
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6
Turn right onto North Church Street
787 ft · 13 sec · North Church Street
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7
Continue on Sharpsburg Pike
6.6 mi · 11 min · Sharpsburg Pike
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8
Turn left onto Lappans Road
6 mi · 11 min · Lappans Road
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9
Turn right onto East Potomac Street
67 m · 4 sec · East Potomac Street
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10
Arrive at your destination
0 m · 1 sec · East Potomac Street
Car Route Details
A richer read on the saved driving route between Mount Briar and Williamsport.
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.
Sharpsburg Pike
Continue on Sharpsburg Pike
6.61 mi · 00h 11m
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 Likely leaving Mount Briar and Chance Rain Showers near Williamsport.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mount Briar to Williamsport?
The road trip is about 16.5 miles (26.5 km) and usually takes 00h 30m 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?
Keedysville is a useful midpoint, sitting about 8.6 miles from Mount Briar and 7.9 miles from Williamsport.
How much longer is the road route than the straight-line distance?
The direct path is about 13 miles (21 km), while the road route adds roughly 3.5 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 7:30 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.37 one way or $4.74 round trip. Estimated CO2 is about 5.2 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Mount Briar and Chance Rain Showers near Williamsport.
Stop Ideas Near Keedysville
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Keedysville.
Hagerstown, MD
Harpers Ferry
Martinsburg station
Frederick, MD
Flight Path Map
This map shows the direct air route between Mount Briar and Williamsport. Straight-line distance: 13.07 mi (21.03 km).
#1 Mount Briar
Mount Briar is a place in Maryland, United States.
| Population | 0 |
| Coordinates | 39.4426000, -77.6858200 |
| Altitude | 176 |
| Country | United States |
#2 Williamsport
Town of the United States
| Population | 2,074 |
| Coordinates | 39.6006500, -77.8205500 |
| Altitude | 124 |
| Country | United States |
End: East Potomac Street (-77.820546, 39.600474)
Estimated Travel Time
Distance: 27 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 32m |
| 40 mph (64.37 km/h) | 00h 24m |
| 50 mph (80.47 km/h) | 00h 19m |
| 60 mph (96.56 km/h) | 00h 16m |
| 70 mph (112.65 km/h) | 00h 14m |
| 80 mph (129 km/h) | 00h 12m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $2.37 | $4.74 |
| Mid-grade | $4.60 | $2.67 | $5.33 |
| Premium | $4.95 | $2.87 | $5.75 |
| Diesel | $5.98 | $3.47 | $6.94 |
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.