How far is Alexandria, VA from Merrimac, VA?
The driving distance from Alexandria, VA to Merrimac, VA is about 80.2 miles (129 km), with a travel time of about 01h 47m by car.
- The straight-line flight distance is about 60.8 miles (97.8 km).
- For a round trip, plan for roughly 03h 35m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EST.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 47m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Street in the St.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Patchy Frost then Sunny
Driving Route Map
The map below follows the saved road route between Alexandria and Merrimac.
Turn-by-Turn Driving Directions
Step-by-step road directions between Alexandria and Merrimac.
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1
Start on South Washington Street
23 m · 7 sec · South Washington Street
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2
Turn right onto King Street
96 m · 15 sec · King Street
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3
Turn right onto South Saint Asaph Street
842 ft · 41 sec · South Saint Asaph Street
-
4
Turn right onto Duke Street
102 m · 19 sec · Duke Street
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5
Turn left onto South Washington Street
1260 ft · 51 sec · South Washington Street
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6
Turn right onto Gibbon Street
923 ft · 38 sec · Gibbon Street
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7
Turn left onto South Patrick Street
1157 ft · 34 sec · South Patrick Street
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8
Take the exit slight right toward I 95 South, I 495 West, I 95 North, I 495 East: Richmond, Baltimore
133 m · 11 sec
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9
Keep slight right to continue on I 95 South, I 495 West
3238 ft · 1 min
-
10
Merge slight left onto Capital Beltway (Local)
5 mi · 6 min · Capital Beltway (Local)
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11
Keep slight right to continue on Capital Beltway
1.1 km · 48 sec · Capital Beltway
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12
Continue on Capital Beltway
2.4 mi · 3 min · Capital Beltway
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13
Keep slight right to continue on Capital Beltway
5.7 mi · 7 min · Capital Beltway
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14
Take the exit slight right toward I 66 West: Vienna, Front Royal
1.4 km · 2 min
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15
Merge slight left
21.3 mi · 26 min
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16
Take the exit slight right toward US 29 South: Gainesville, Warrenton
1.2 km · 1 min
-
17
Keep slight left to continue on US 29 South: Gainesville, Warrenton
953 ft · 23 sec
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18
Merge slight left onto Lee Highway
10.6 mi · 16 min · Lee Highway
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19
Keep slight left to continue on US 15 South, US 29 South
2786 ft · 45 sec
-
20
Merge slight right onto Eastern Bypass
2.6 mi · 4 min · Eastern Bypass
-
21
Continue on James Madison Highway
5.1 mi · 7 min · James Madison Highway
-
22
Keep slight left to continue on James Madison Highway
18.2 mi · 23 min · James Madison Highway
-
23
Continue on James Monroe Highway
4.5 mi · 6 min · James Monroe Highway
-
24
Continue on James Monroe Highway
829 ft · 21 sec · James Monroe Highway
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25
Arrive at your destination
0 m · 1 sec · James Monroe Highway
Car Route Details
A richer read on the saved driving route between Alexandria and Merrimac.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 66 West
Merge slight left
21.3 mi · 00h 26m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving Alexandria and Patchy Frost then Sunny near Merrimac.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Alexandria to Merrimac?
The road trip is about 80.2 miles (129 km) and usually takes 01h 47m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Haymarket is a useful midpoint, sitting about 40 miles from Alexandria and 40.1 miles from Merrimac.
How much longer is the road route than the straight-line distance?
The direct path is about 60.8 miles (97.8 km), while the road route adds roughly 19.4 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 8:00 AM to 10:00 AM EST. If you want a more comfortable same-day return, try to leave by 2:54 PM EST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.01 one way or $22.03 round trip. Estimated CO2 is about 25.2 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Alexandria and Patchy Frost then Sunny near Merrimac.
Stop Ideas Near Haymarket
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall Parking Lot
Manassas Park City Hall
Town Hall Pool
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Haymarket.
Manassas station
Burke Centre
Lorton station
Woodbridge station
Flight Path Map
This map shows the direct air route between Alexandria and Merrimac. Straight-line distance: 60.77 mi (97.8 km).
#1 Alexandria
A city in Virginia.
| Population | 158,726 |
| Coordinates | 38.8048400, -77.0469200 |
| Altitude | 12 |
| Country | United States |
#2 Merrimac
Merrimac is a place in Virginia, United States.
| Population | 0 |
| Coordinates | 38.4526300, -78.0786100 |
| Altitude | 181 |
| Country | United States |
End: Merrimac (-78.07861, 38.45263)
Estimated Travel Time
Distance: 129 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 40m |
| 40 mph (64.37 km/h) | 02h 00m |
| 50 mph (80.47 km/h) | 01h 36m |
| 60 mph (96.56 km/h) | 01h 20m |
| 70 mph (112.65 km/h) | 01h 08m |
| 80 mph (129 km/h) | 01h 00m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $11.01 | $22.03 |
| Mid-grade | $4.39 | $12.44 | $24.87 |
| Premium | $4.80 | $13.58 | $27.15 |
| Diesel | $6.18 | $17.49 | $34.97 |
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 Virginia · Nov 07, 2026