How far is Merrimack, NH from Alstead, NH?
The driving distance from Merrimack, NH to Alstead, NH is about 67.5 miles (108.7 km), with a travel time of about 02h 02m by car.
- The straight-line flight distance is about 48 miles (77.3 km).
- For a round trip, plan for roughly 04h 05m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
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 02h 02m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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 New Hampshire
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers
Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Merrimack and Alstead.
Turn-by-Turn Driving Directions
Step-by-step road directions between Merrimack and Alstead.
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1
Start on Loop Road
938 ft · 46 sec · Loop Road
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2
At the end of the road, turn left onto Daniel Webster Highway
1.7 mi · 4 min · Daniel Webster Highway
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3
Turn right onto Greeley Street
1118 ft · 28 sec · Greeley Street
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4
Continue on Continental Boulevard
3.8 mi · 8 min · Continental Boulevard
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5
Turn right onto Milford Road
4.3 mi · 8 min · Milford Road
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6
Turn left
1544 ft · 43 sec
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7
Merge slight left
4.8 mi · 7 min
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8
Turn left onto Elm Street
1.4 mi · 3 min · Elm Street
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9
Continue on Gibbons Highway
9.3 mi · 15 min · Gibbons Highway
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10
Continue on Wilton Road
4 mi · 7 min · Wilton Road
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11
Continue on State Route 101
54 m · 5 sec · State Route 101
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12
Merge slight left onto Peterborough Bypass
2980 ft · 1 min · Peterborough Bypass
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13
Enter the roundabout and take exit 1 toward Peterborough Bypass
28 m · 2 sec · Peterborough Bypass
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14
Exit the roundabout onto Peterborough Bypass
1.8 mi · 3 min · Peterborough Bypass
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15
Continue on State Route 101
3.5 mi · 6 min · State Route 101
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16
Continue on Main Street
9.9 mi · 19 min · Main Street
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17
Continue on Marlboro Street
1.8 mi · 3 min · Marlboro Street
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18
Continue on State Route 101
1.2 mi · 2 min · State Route 101
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19
Turn right onto Main Street
2673 ft · 1 min · Main Street
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20
Enter the roundabout and take exit 2 toward Main Street
36 m · 2 sec · Main Street
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21
Exit the roundabout onto Main Street
1865 ft · 1 min · Main Street
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22
Continue on Central Square
45 m · 3 sec · Central Square
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23
Keep slight left to continue on Central Square
91 m · 6 sec · Central Square
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24
Turn right onto Court Street
1.2 mi · 2 min · Court Street
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25
Enter the roundabout and take exit 2 toward Court Street
29 m · 4 sec · Court Street
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26
Exit the roundabout onto Court Street
1.3 mi · 2 min · Court Street
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27
Enter the roundabout and take exit 1 toward West Surry Road
15 m · 1 sec · West Surry Road
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28
Exit the roundabout onto West Surry Road
13.7 mi · 24 min · West Surry Road
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29
Turn left onto Forest Road
1.3 km · 1 min · Forest Road
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30
Continue on Mechanic Street
2995 ft · 1 min · Mechanic Street
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31
Arrive at your destination
0 m · 1 sec · Mechanic Street
Car Route Details
A richer read on the saved driving route between Merrimack and Alstead.
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.
West Surry Road
Exit the roundabout onto West Surry Road
13.7 mi · 00h 24m
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.
Slight Chance Rain Showers leaving Merrimack and Slight Chance Rain Showers near Alstead.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Merrimack to Alstead?
The road trip is about 67.5 miles (108.7 km) and usually takes 02h 02m 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?
Dublin is a useful midpoint, sitting about 33.7 miles from Merrimack and 33.8 miles from Alstead.
How much longer is the road route than the straight-line distance?
The direct path is about 48 miles (77.3 km), while the road route adds roughly 19.5 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 2:24 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $9.39 one way or $18.78 round trip. Estimated CO2 is about 21.2 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers around Merrimack and Slight Chance Rain Showers near Alstead.
Stop Ideas Near Dublin
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 Dublin.
Union Station
Bellows Falls station
Nashua, NH
Manchester, New Hampshire
Flight Path Map
This map shows the direct air route between Merrimack and Alstead. Straight-line distance: 48.01 mi (77.26 km).
#1 Merrimack
River in New Hampshire and Massachusetts, United States
| Population | 27,452 |
| Coordinates | 42.8650900, -71.4934000 |
| Altitude | 47 |
| Country | United States |
#2 Alstead
City in Cheshire County, New Hampshire, United States of America
| Population | 1,951 |
| Coordinates | 43.1489700, -72.3606400 |
| Altitude | 147 |
| Country | United States |
End: Alstead (-72.36064, 43.14897)
Estimated Travel Time
Distance: 109 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 14m |
| 40 mph (64.37 km/h) | 01h 41m |
| 50 mph (80.47 km/h) | 01h 21m |
| 60 mph (96.56 km/h) | 01h 07m |
| 70 mph (112.65 km/h) | 00h 57m |
| 80 mph (129 km/h) | 00h 50m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $9.39 | $18.78 |
| Mid-grade | $4.46 | $10.61 | $21.22 |
| Premium | $4.86 | $11.56 | $23.12 |
| Diesel | $6.00 | $14.27 | $28.55 |
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 New Hampshire · 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.