How far is Greenville, NH from Merrimack, NH?
The driving distance from Greenville, NH to Merrimack, NH is about 26.7 miles (43 km), with a travel time of about 00h 37m by car.
- The straight-line flight distance is about 17.5 miles (28.2 km).
- For a round trip, plan for roughly 01h 15m 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 37m.
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 Hillsborough County, New Hampshire, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Partly Sunny
Driving Route Map
The map below follows the saved road route between Greenville and Merrimack.
Turn-by-Turn Driving Directions
Step-by-step road directions between Greenville and Merrimack.
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1
Start on the route
10 m · 3 sec
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2
Turn right onto High Street
15 m · 2 sec · High Street
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3
Turn right onto Main Street
778 ft · 16 sec · Main Street
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4
Turn left onto Hubbard Hill Road
1430 ft · 1 min · Hubbard Hill Road
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5
At the end of the road, turn right onto Mill Street
124 m · 23 sec · Mill Street
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6
Turn left onto Greenville Road
4.9 mi · 10 min · Greenville Road
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7
At the end of the road, turn right onto Gibbons Highway
2.7 mi · 5 min · Gibbons Highway
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8
Continue on Elm Street
1.3 mi · 3 min · Elm Street
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9
Turn right onto State Route 101
4.9 mi · 7 min · State Route 101
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10
Take the exit slight right toward NH 101A: Milford, Nashua
2194 ft · 1 min
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11
Keep slight left
68 m · 10 sec
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12
Turn right
4 mi · 8 min
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13
Turn left onto Continental Boulevard
3.9 mi · 8 min · Continental Boulevard
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14
Continue on Greeley Street
1028 ft · 33 sec · Greeley Street
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15
Turn left onto Daniel Webster Highway
1.9 mi · 5 min · Daniel Webster Highway
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16
Turn sharp right onto Loop Road
25 m · 4 sec · Loop Road
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17
Arrive at your destination
0 m · 1 sec · Loop Road
Car Route Details
A richer read on the saved driving route between Greenville 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.
Greenville Road
Turn left onto Greenville Road
4.93 mi · 00h 10m
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.
Rain Showers leaving Greenville and Partly Sunny near Merrimack.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Greenville to Merrimack?
The road trip is about 26.7 miles (43 km) and usually takes 00h 37m 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?
Milford is a useful midpoint, sitting about 12.4 miles from Greenville and 14.4 miles from Merrimack.
How much longer is the road route than the straight-line distance?
The direct path is about 17.5 miles (28.2 km), while the road route adds roughly 9.2 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:14 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.71 one way or $7.42 round trip. Estimated CO2 is about 8.4 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Greenville and Partly Sunny near Merrimack.
Stop Ideas Near Milford
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 Milford.
Nashua, NH
Manchester, New Hampshire
Concord, New Hampshire
Haverhill station
Flight Path Map
This map shows the direct air route between Greenville and Merrimack. Straight-line distance: 17.52 mi (28.19 km).
#1 Greenville
Town in Hillsborough County, New Hampshire, United States
| Population | 2,110 |
| Coordinates | 42.7673100, -71.8123000 |
| Altitude | 250 |
| 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: 43 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 53m |
| 40 mph (64.37 km/h) | 00h 40m |
| 50 mph (80.47 km/h) | 00h 32m |
| 60 mph (96.56 km/h) | 00h 26m |
| 70 mph (112.65 km/h) | 00h 22m |
| 80 mph (129 km/h) | 00h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $3.71 | $7.42 |
| Mid-grade | $4.46 | $4.19 | $8.38 |
| Premium | $4.86 | $4.57 | $9.13 |
| Diesel | $6.00 | $5.64 | $11.27 |
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 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.