How far is Arlington, VA from Merrimac, VA?
The driving distance from Arlington, VA to Merrimac, VA is about 71.4 miles (114.9 km), with a travel time of about 01h 36m by car.
- The straight-line flight distance is about 60.3 miles (97.1 km).
- For a round trip, plan for roughly 03h 12m 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 36m.
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 Arlington and Merrimac.
Turn-by-Turn Driving Directions
Step-by-step road directions between Arlington and Merrimac.
-
1
Start on Wilson Boulevard
2828 ft · 2 min · Wilson Boulevard
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2
Turn slight right onto North Glebe Road
936 ft · 31 sec · North Glebe Road
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3
Turn left onto Fairfax Drive
667 ft · 28 sec · Fairfax Drive
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4
Continue on I 66 Toll West
2423 ft · 1 min
-
5
Merge slight left onto Custis Memorial Parkway
3.3 mi · 4 min · Custis Memorial Parkway
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6
Keep slight left to continue on Custis Memorial Parkway
24.2 mi · 30 min · Custis Memorial Parkway
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7
Take the exit slight right toward US 29 South: Gainesville, Warrenton
1.2 km · 1 min
-
8
Keep slight left to continue on US 29 South: Gainesville, Warrenton
953 ft · 23 sec
-
9
Merge slight left onto Lee Highway
10.6 mi · 16 min · Lee Highway
-
10
Keep slight left to continue on US 15 South, US 29 South
2786 ft · 45 sec
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11
Merge slight right onto Eastern Bypass
2.6 mi · 4 min · Eastern Bypass
-
12
Continue on James Madison Highway
5.1 mi · 7 min · James Madison Highway
-
13
Keep slight left to continue on James Madison Highway
18.2 mi · 23 min · James Madison Highway
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14
Continue on James Monroe Highway
4.5 mi · 6 min · James Monroe Highway
-
15
Continue on James Monroe Highway
829 ft · 21 sec · James Monroe Highway
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16
Arrive at your destination
0 m · 1 sec · James Monroe Highway
Car Route Details
A richer read on the saved driving route between Arlington 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.
Custis Memorial Parkway
Keep slight left to continue on Custis Memorial Parkway
24.2 mi · 00h 30m
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 Arlington 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 Arlington to Merrimac?
The road trip is about 71.4 miles (114.9 km) and usually takes 01h 36m 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 35.6 miles from Arlington and 35.7 miles from Merrimac.
How much longer is the road route than the straight-line distance?
The direct path is about 60.3 miles (97.1 km), while the road route adds roughly 11.1 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 8:00 AM to 10:00 AM EST. If you want a more comfortable same-day return, try to leave by 3:18 PM EST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $9.81 one way or $19.62 round trip. Estimated CO2 is about 22.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Arlington 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 Arlington and Merrimac. Straight-line distance: 60.32 mi (97.08 km).
#1 Arlington
A county in Virginia.
| Population | 229,164 |
| Coordinates | 38.8810100, -77.1042800 |
| Altitude | 71 |
| 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: 115 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 22m |
| 40 mph (64.37 km/h) | 01h 47m |
| 50 mph (80.47 km/h) | 01h 25m |
| 60 mph (96.56 km/h) | 01h 11m |
| 70 mph (112.65 km/h) | 01h 01m |
| 80 mph (129 km/h) | 00h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $9.81 | $19.62 |
| Mid-grade | $4.39 | $11.07 | $22.15 |
| Premium | $4.80 | $12.09 | $24.18 |
| Diesel | $6.18 | $15.57 | $31.14 |
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