How far is Stratham, NH from Merrimack, NH?
The driving distance from Stratham, NH to Merrimack, NH is about 42.3 miles (68.1 km), with a travel time of about 00h 46m by car.
- The straight-line flight distance is about 31.3 miles (50.4 km).
- For a round trip, plan for roughly 01h 32m 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 00h 46m.
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 Rockingham County, New Hampshire, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Stratham and Merrimack.
Turn-by-Turn Driving Directions
Step-by-step road directions between Stratham and Merrimack.
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1
Start on Portsmouth Avenue
29 m · 10 sec · Portsmouth Avenue
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2
Continue on Portsmouth Avenue
568 ft · 12 sec · Portsmouth Avenue
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3
Enter the roundabout and take exit 2 toward Stratham Traffic Circle
1068 ft · 27 sec · Portsmouth Avenue
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4
Exit the rotary onto Portsmouth Avenue
2 mi · 4 min · Portsmouth Avenue
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5
Take the ramp right
1977 ft · 48 sec
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6
Merge slight left
28.3 mi · 33 min
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7
Keep slight right to continue on I 293 North, NH 101 West: Manchester Airport, Manchester, Bedford
3.3 mi · 4 min
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8
Keep slight left to continue on NH 101 West: Bedford, Nashua
2871 ft · 45 sec
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9
Take the exit slight right toward Everett Turnpike South: Merrimack, Nashua, Manchester Airport
1840 ft · 44 sec
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10
Merge slight left onto Everett Turnpike
1.9 mi · 3 min · Everett Turnpike
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11
Take the exit slight right toward Airport
1.3 km · 1 min
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12
Keep slight right to continue on Merrimack
1425 ft · 38 sec
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13
Turn right onto South River Road
704 ft · 13 sec · South River Road
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14
Continue on Daniel Webster Highway
3.8 mi · 9 min · Daniel Webster Highway
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15
Turn slight left onto Loop Road
25 m · 4 sec · Loop Road
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16
Arrive at your destination
0 m · 1 sec · Loop Road
Car Route Details
A richer read on the saved driving route between Stratham 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.
Portsmouth Avenue
Merge slight left
28.4 mi · 00h 33m
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.
Partly Sunny leaving Stratham and Mostly Sunny near Merrimack.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Stratham to Merrimack?
The road trip is about 42.3 miles (68.1 km) and usually takes 00h 46m 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?
Candia is a useful midpoint, sitting about 21.1 miles from Stratham and 21.3 miles from Merrimack.
How much longer is the road route than the straight-line distance?
The direct path is about 31.3 miles (50.4 km), while the road route adds roughly 11 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 4:58 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.88 one way or $11.76 round trip. Estimated CO2 is about 13.2 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Stratham and Mostly Sunny near Merrimack.
Stop Ideas Near Candia
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 Candia.
Manchester, New Hampshire
Concord, New Hampshire
Durham–UNH station
Exeter station
Flight Path Map
This map shows the direct air route between Stratham and Merrimack. Straight-line distance: 31.31 mi (50.39 km).
#1 Stratham
Town in Rockingham County, New Hampshire
| Population | 7,579 |
| Coordinates | 43.0239800, -70.9136700 |
| Altitude | 13 |
| 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: 68 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 24m |
| 40 mph (64.37 km/h) | 01h 03m |
| 50 mph (80.47 km/h) | 00h 50m |
| 60 mph (96.56 km/h) | 00h 42m |
| 70 mph (112.65 km/h) | 00h 36m |
| 80 mph (129 km/h) | 00h 31m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $5.88 | $11.76 |
| Mid-grade | $4.46 | $6.64 | $13.28 |
| Premium | $4.86 | $7.24 | $14.48 |
| Diesel | $6.00 | $8.94 | $17.87 |
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.