How far is Merrimack, NH from Colebrook, NH?
The driving distance from Merrimack, NH to Colebrook, NH is about 164.4 miles (264.5 km), with a travel time of about 03h 41m by car.
- The straight-line flight distance is about 140.2 miles (225.7 km).
- For a round trip, plan for roughly 07h 23m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 41m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 Grafton County, New Hampshire, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Merrimack and Colebrook.
Turn-by-Turn Driving Directions
Step-by-step road directions between Merrimack and Colebrook.
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1
Start on Loop Road
25 m · 6 sec · Loop Road
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2
Turn straight onto Daniel Webster Highway
3.8 mi · 8 min · Daniel Webster Highway
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3
Continue on South River Road
2135 ft · 46 sec · South River Road
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4
Take the ramp right toward Concord, Nashua
2141 ft · 52 sec
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5
Merge slight left onto Raymond Wieczorek Drive
653 ft · 11 sec · Raymond Wieczorek Drive
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6
Keep slight right to continue on Bedford, Manchester
1.3 km · 2 min
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7
Merge slight left onto Everett Turnpike
11.2 mi · 15 min · Everett Turnpike
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8
Keep slight left to continue on Everett Turnpike
10.2 mi · 12 min · Everett Turnpike
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9
Continue on Styles Bridges Highway
16.7 mi · 19 min · Styles Bridges Highway
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10
Continue on Sen Styles Bridges Highway
1.2 km · 47 sec · Sen Styles Bridges Highway
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11
Continue on Styles Bridges Highway
48.9 mi · 53 min · Styles Bridges Highway
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12
Continue on Franconia Notch Parkway
7.7 mi · 12 min · Franconia Notch Parkway
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13
Take the exit slight right toward US 3 North: Twin Mountain, Lancaster
10.4 mi · 16 min
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14
Continue on US Route 3 North
6.1 mi · 9 min · US Route 3 North
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15
Continue on Twin Mountain Road
2.3 mi · 4 min · Twin Mountain Road
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16
Continue on Daniel Webster Highway
142 m · 11 sec · Daniel Webster Highway
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17
Continue on Lancaster Road
2 mi · 3 min · Lancaster Road
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18
Continue on Prospect Street
6.3 mi · 9 min · Prospect Street
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19
Continue on Main Street
1.3 km · 2 min · Main Street
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20
Enter the roundabout and take exit 1 toward North Main Street
12 m · 1 sec · North Main Street
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21
Exit the roundabout onto North Main Street
5.2 mi · 8 min · North Main Street
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22
Continue on Lancaster Road
1.2 mi · 2 min · Lancaster Road
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23
Continue on Main Street
2.8 mi · 5 min · Main Street
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24
Turn slight left onto Church Street
965 ft · 26 sec · Church Street
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25
Continue on State Street
1594 ft · 27 sec · State Street
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26
Continue on Daniel Webster Highway
12.3 mi · 18 min · Daniel Webster Highway
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27
Continue on US Route 3
3.3 mi · 5 min · US Route 3
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28
Continue on Daniel Webster Highway
8.1 mi · 12 min · Daniel Webster Highway
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29
Continue on US Route 3
1.6 mi · 2 min · US Route 3
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30
Continue on Main Street
1181 ft · 21 sec · Main Street
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31
Turn right onto Pleasant Street
45 m · 7 sec · Pleasant Street
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32
Arrive at your destination
0 m · 1 sec · Pleasant Street
Car Route Details
A richer read on the saved driving route between Merrimack and Colebrook.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Styles Bridges Highway
Continue on Styles Bridges Highway
48.9 mi · 00h 53m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Mostly Sunny leaving Merrimack and Slight Chance Rain Showers near Colebrook.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Merrimack to Colebrook?
The road trip is about 164.4 miles (264.5 km) and usually takes 03h 41m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Woodstock is a useful midpoint, sitting about 82.2 miles from Merrimack and 82.2 miles from Colebrook.
How much longer is the road route than the straight-line distance?
The direct path is about 140.2 miles (225.7 km), while the road route adds roughly 24.2 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 9:36 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.88 one way or $45.76 round trip. Estimated CO2 is about 51.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Merrimack and Slight Chance Rain Showers near Colebrook.
Stop Ideas Near Woodstock
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 Woodstock.
Lincoln, New Hampshire
Plymouth, New Hampshire
Littleton, New Hampshire
New Hampton, New Hampshire
Flight Path Map
This map shows the direct air route between Merrimack and Colebrook. Straight-line distance: 140.22 mi (225.66 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 Colebrook
City in Coös County, New Hampshire, United States of America
| Population | 2,134 |
| Coordinates | 44.8944900, -71.4959200 |
| Altitude | 313 |
| Country | United States |
End: Colebrook (-71.49592, 44.89449)
Estimated Travel Time
Distance: 265 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 28m |
| 40 mph (64.37 km/h) | 04h 06m |
| 50 mph (80.47 km/h) | 03h 17m |
| 60 mph (96.56 km/h) | 02h 44m |
| 70 mph (112.65 km/h) | 02h 20m |
| 80 mph (129 km/h) | 02h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $22.88 | $45.76 |
| Mid-grade | $4.46 | $25.85 | $51.70 |
| Premium | $4.86 | $28.18 | $56.35 |
| Diesel | $6.00 | $34.78 | $69.57 |
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.