How far is Merrimack, NH from Windham, NH?
The driving distance from Merrimack, NH to Windham, NH is about 20.4 miles (32.8 km), with a travel time of about 00h 30m by car.
- The straight-line flight distance is about 10.6 miles (17 km).
- For a round trip, plan for roughly 01h 01m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 30m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Merrimack and Windham.
Turn-by-Turn Driving Directions
Step-by-step road directions between Merrimack and Windham.
-
1
Start on Loop Road
25 m · 4 sec · Loop Road
-
2
Turn straight onto Daniel Webster Highway
3.8 mi · 9 min · Daniel Webster Highway
-
3
Continue on South River Road
641 ft · 12 sec · South River Road
-
4
Take the ramp right toward Airport
1104 ft · 27 sec
-
5
Merge slight left onto Raymond Wieczorek Drive
2769 ft · 47 sec · Raymond Wieczorek Drive
-
6
Turn right onto Pettengill Road
1.1 mi · 3 min · Pettengill Road
-
7
Continue on Harvey Road
3008 ft · 1 min · Harvey Road
-
8
Turn right onto Webster Road
742 ft · 23 sec · Webster Road
-
9
Turn right onto Grenier Field Road
1.2 km · 2 min · Grenier Field Road
-
10
Continue on Page Road
1079 ft · 35 sec · Page Road
-
11
Turn right onto Rockingham Road
2.1 mi · 3 min · Rockingham Road
-
12
Take the ramp right toward I 93 South
2860 ft · 1 min
-
13
Merge slight left onto Alan B Shepard Jr Highway
2809 ft · 37 sec · Alan B Shepard Jr Highway
-
14
Continue on Alan Bartlett Shepard Junior Highway
7.4 mi · 8 min · Alan Bartlett Shepard Junior Highway
-
15
Take the exit slight right toward NH 111: Windham, North Salem
1.2 km · 1 min
-
16
Turn sharp right onto Indian Rock Road
1.7 mi · 3 min · Indian Rock Road
-
17
Turn left onto Lowell Road
61 m · 8 sec · Lowell Road
-
18
Turn right
21 m · 5 sec
-
19
Turn right
20 m · 5 sec
-
20
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Merrimack and Windham.
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.
Alan Bartlett Shepard Junior Highway
Continue on Alan Bartlett Shepard Junior Highway
7.35 mi · 00h 09m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Sunny leaving Merrimack and Partly Sunny near Windham.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Merrimack to Windham?
The road trip is about 20.4 miles (32.8 km) and usually takes 00h 30m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Derry is a useful midpoint, sitting about 10.2 miles from Merrimack and 10.2 miles from Windham.
How much longer is the road route than the straight-line distance?
The direct path is about 10.6 miles (17 km), while the road route adds roughly 9.8 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:28 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.84 one way or $5.68 round trip. Estimated CO2 is about 6.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Merrimack and Partly Sunny near Windham.
Stop Ideas Near Derry
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 Derry.
Manchester, New Hampshire
Nashua, NH
Haverhill station
Exeter station
Flight Path Map
This map shows the direct air route between Merrimack and Windham. Straight-line distance: 10.57 mi (17.01 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 Windham
City in New Hampshire
| Population | 14,865 |
| Coordinates | 42.8006400, -71.3042300 |
| Altitude | 60 |
| Country | United States |
End: (-71.304271, 42.800568)
Estimated Travel Time
Distance: 33 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 40m |
| 40 mph (64.37 km/h) | 00h 30m |
| 50 mph (80.47 km/h) | 00h 24m |
| 60 mph (96.56 km/h) | 00h 20m |
| 70 mph (112.65 km/h) | 00h 17m |
| 80 mph (129 km/h) | 00h 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $2.84 | $5.68 |
| Mid-grade | $4.46 | $3.21 | $6.42 |
| Premium | $4.86 | $3.50 | $7.00 |
| Diesel | $6.00 | $4.32 | $8.64 |
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.