How far is New Durham, NH from Merrimack, NH?
The driving distance from New Durham, NH to Merrimack, NH is about 51.7 miles (83.2 km), with a travel time of about 01h 09m by car.
- The straight-line flight distance is about 42.7 miles (68.7 km).
- For a round trip, plan for roughly 02h 18m 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 01h 09m.
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.
Town in New Hampshire
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain
Light Rain
Driving Route Map
The map below follows the saved road route between New Durham and Merrimack.
Turn-by-Turn Driving Directions
Step-by-step road directions between New Durham and Merrimack.
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1
Start on the route
73 m · 20 sec
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2
Turn left onto Smittys Way
122 m · 20 sec · Smittys Way
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3
Turn right onto Main Street
1801 ft · 44 sec · Main Street
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4
Continue on Depot Road
1787 ft · 49 sec · Depot Road
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5
Continue on Berry Road
1257 ft · 31 sec · Berry Road
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6
Turn right onto Stockbridge Corner Road
2.3 mi · 9 min · Stockbridge Corner Road
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7
Turn left onto Suncook Valley Road
9 mi · 13 min · Suncook Valley Road
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8
Continue on Suncook Valley Highway
1.5 km · 2 min · Suncook Valley Highway
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9
Continue on Suncook Valley Road
1.1 mi · 2 min · Suncook Valley Road
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10
Continue on Suncook Valley Highway
1440 ft · 31 sec · Suncook Valley Highway
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11
Continue on Suncook Valley Road
4.3 mi · 6 min · Suncook Valley Road
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12
Continue on Suncook Valley Highway
1.6 mi · 3 min · Suncook Valley Highway
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13
Enter the roundabout and take exit 2 toward Epsom Circle
58 m · 5 sec · Suncook Valley Highway
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14
Exit the rotary onto Suncook Valley Highway
4.3 mi · 7 min · Suncook Valley Highway
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15
Continue on Route 28
1.3 mi · 2 min · Route 28
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16
Continue on Pinewood Road
3.1 mi · 5 min · Pinewood Road
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17
At the end of the road, turn left onto Allenstown Road
1480 ft · 37 sec · Allenstown Road
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18
Continue on Hooksett Road
2.2 mi · 4 min · Hooksett Road
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19
Turn slight right onto Hooksett Village
77 m · 9 sec
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20
Turn straight onto College Park Drive
2332 ft · 1 min · College Park Drive
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21
Continue on Main Street
1272 ft · 39 sec · Main Street
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22
Turn right onto Riverside Street
1560 ft · 59 sec · Riverside Street
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23
Turn left onto West River Road
1787 ft · 44 sec · West River Road
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24
Turn right onto Hackett Hill Road
1333 ft · 35 sec · Hackett Hill Road
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25
Take the ramp right
128 m · 11 sec
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26
Keep slight left
2636 ft · 1 min
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27
Continue on I 93 South
1211 ft · 30 sec
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28
Merge slight left onto Everett Turnpike
1.6 km · 2 min · Everett Turnpike
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29
Keep slight left to continue on Everett Turnpike
8.2 mi · 11 min · Everett Turnpike
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30
Keep slight left to continue on Everett Turnpike
2.4 mi · 3 min · Everett Turnpike
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31
Take the exit slight right toward Airport
1.3 km · 1 min
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32
Keep slight right to continue on Merrimack
1425 ft · 38 sec
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33
Turn right onto South River Road
704 ft · 13 sec · South River Road
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34
Continue on Daniel Webster Highway
3.8 mi · 8 min · Daniel Webster Highway
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35
Turn slight left onto Loop Road
25 m · 4 sec · Loop Road
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36
Arrive at your destination
0 m · 1 sec · Loop Road
Car Route Details
A richer read on the saved driving route between New Durham and Merrimack.
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.
Suncook Valley Road
Turn left onto Suncook Valley Road
9.04 mi · 00h 13m
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.
Light Rain leaving New Durham and Light Rain near Merrimack.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from New Durham to Merrimack?
The road trip is about 51.7 miles (83.2 km) and usually takes 01h 09m 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?
Allenstown is a useful midpoint, sitting about 25.5 miles from New Durham and 26.2 miles from Merrimack.
How much longer is the road route than the straight-line distance?
The direct path is about 42.7 miles (68.7 km), while the road route adds roughly 9 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 4:12 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.18 one way or $14.36 round trip. Estimated CO2 is about 16.2 kg one way.
What should you check before leaving?
Before you leave, expect Light Rain around New Durham and Light Rain near Merrimack.
Stop Ideas Near Allenstown
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 Allenstown.
Concord, New Hampshire
Manchester, New Hampshire
Tilton, New Hampshire
Durham–UNH station
Flight Path Map
This map shows the direct air route between New Durham and Merrimack. Straight-line distance: 42.69 mi (68.7 km).
#1 New Durham
Town in New Hampshire
| Population | 2,728 |
| Coordinates | 43.4367500, -71.1722900 |
| Altitude | 163 |
| Country | United States |
#2 Merrimack
River in New Hampshire and Massachusetts, United States
| Population | 27,452 |
| Coordinates | 42.8650900, -71.4934000 |
| Altitude | 47 |
| Country | United States |
End: (-71.493333, 42.865106)
Estimated Travel Time
Distance: 83 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 43m |
| 40 mph (64.37 km/h) | 01h 17m |
| 50 mph (80.47 km/h) | 01h 02m |
| 60 mph (96.56 km/h) | 00h 51m |
| 70 mph (112.65 km/h) | 00h 44m |
| 80 mph (129 km/h) | 00h 38m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $7.18 | $14.36 |
| Mid-grade | $4.46 | $8.11 | $16.22 |
| Premium | $4.86 | $8.84 | $17.68 |
| Diesel | $6.00 | $10.91 | $21.83 |
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 · May 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.