How far is Merrimack, NH from Antrim, NH?
The driving distance from Merrimack, NH to Antrim, NH is about 32 miles (51.5 km), with a travel time of about 01h 10m by car.
- The straight-line flight distance is about 25.3 miles (40.7 km).
- For a round trip, plan for roughly 02h 20m 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 10m.
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.
City in Hillsborough County, New Hampshire, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Merrimack and Antrim.
Turn-by-Turn Driving Directions
Step-by-step road directions between Merrimack and Antrim.
-
1
Start on Loop Road
25 m · 6 sec · Loop Road
-
2
Turn straight onto Daniel Webster Highway
152 m · 20 sec · Daniel Webster Highway
-
3
Turn left onto Baboosic Lake Road
5.2 mi · 13 min · Baboosic Lake Road
-
4
Continue on Camp Road
2153 ft · 1 min · Camp Road
-
5
Turn left
2.8 mi · 4 min
-
6
Turn right onto Blueberry Hill Road
1162 ft · 33 sec · Blueberry Hill Road
-
7
Turn right onto Bayberry Drive
1104 ft · 33 sec · Bayberry Drive
-
8
Turn right onto Blueberry Hill Road
87 m · 10 sec · Blueberry Hill Road
-
9
Turn left onto Dodge Road
1850 ft · 55 sec · Dodge Road
-
10
Continue on Jones Road
2263 ft · 1 min · Jones Road
-
11
At the end of the road, turn right onto New Boston Road
1.2 km · 2 min · New Boston Road
-
12
Turn left onto Old Mont Vernon Road
2739 ft · 1 min · Old Mont Vernon Road
-
13
Continue on Old Amherst Road
1.9 mi · 5 min · Old Amherst Road
-
14
Turn right onto North Main Street
2168 ft · 1 min · North Main Street
-
15
Turn left onto Francestown Turnpike
3 mi · 6 min · Francestown Turnpike
-
16
Continue on 2nd New Hampshire Turnpike South
6.2 mi · 14 min · 2nd New Hampshire Turnpike South
-
17
Turn left onto New Boston Road
76 m · 7 sec · New Boston Road
-
18
Continue on Main Street
1.6 km · 2 min · Main Street
-
19
Continue on Bennington Road
3 mi · 6 min · Bennington Road
-
20
Continue on Francestown Road
3.1 mi · 6 min · Francestown Road
-
21
Turn right onto Antrim Road
1.2 km · 2 min · Antrim Road
-
22
At the end of the road, turn right onto State Route 202
1.2 km · 1 min · State Route 202
-
23
Continue on Main Street
1.3 km · 2 min · Main Street
-
24
Turn left
65 m · 16 sec
-
25
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Merrimack and Antrim.
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.
2nd New Hampshire Turnpike South
Continue on 2nd New Hampshire Turnpike South
6.22 mi · 00h 14m
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.
Mostly Sunny leaving Merrimack and Mostly Sunny near Antrim.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Merrimack to Antrim?
The road trip is about 32 miles (51.5 km) and usually takes 01h 10m 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?
Lyndeborough is a useful midpoint, sitting about 16 miles from Merrimack and 16 miles from Antrim.
How much longer is the road route than the straight-line distance?
The direct path is about 25.3 miles (40.7 km), while the road route adds roughly 6.7 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 4:10 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.46 one way or $8.92 round trip. Estimated CO2 is about 10 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Merrimack and Mostly Sunny near Antrim.
Stop Ideas Near Lyndeborough
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 Lyndeborough.
Nashua, NH
Manchester, New Hampshire
Concord, New Hampshire
Haverhill station
Flight Path Map
This map shows the direct air route between Merrimack and Antrim. Straight-line distance: 25.28 mi (40.68 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 Antrim
City in Hillsborough County, New Hampshire, United States of America
| Population | 2,682 |
| Coordinates | 43.0309100, -71.9389700 |
| Altitude | 214 |
| Country | United States |
End: Antrim (-71.93897, 43.03091)
Estimated Travel Time
Distance: 51 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 03m |
| 40 mph (64.37 km/h) | 00h 47m |
| 50 mph (80.47 km/h) | 00h 38m |
| 60 mph (96.56 km/h) | 00h 31m |
| 70 mph (112.65 km/h) | 00h 27m |
| 80 mph (129 km/h) | 00h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $4.46 | $8.92 |
| Mid-grade | $4.46 | $5.04 | $10.07 |
| Premium | $4.86 | $5.49 | $10.98 |
| Diesel | $6.00 | $6.78 | $13.55 |
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.