How far is Rochester, NH from Merrimack, NH?
The driving distance from Rochester, NH to Merrimack, NH is about 52.7 miles (84.8 km), with a travel time of about 01h 07m by car.
- The straight-line flight distance is about 40.1 miles (64.5 km).
- For a round trip, plan for roughly 02h 14m 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 07m.
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 New Hampshire
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Rochester and Merrimack.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rochester and Merrimack.
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1
Start on the route
17 m · 6 sec
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2
Turn right onto Museum Way
550 ft · 20 sec · Museum Way
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3
Turn right onto Columbus Avenue
1.6 mi · 4 min · Columbus Avenue
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4
Continue on Gonic Road
1.9 mi · 3 min · Gonic Road
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5
Continue on Calef Highway
7.7 mi · 13 min · Calef Highway
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6
Enter the roundabout and take exit 2 toward Lee Circle
50 m · 5 sec · Calef Highway
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7
Exit the rotary onto Calef Highway
9.6 mi · 15 min · Calef Highway
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8
Take the exit slight right
1904 ft · 47 sec
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9
Merge slight left
20.3 mi · 24 min
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10
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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11
Keep slight left to continue on NH 101 West: Bedford, Nashua
2871 ft · 45 sec
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12
Take the exit slight right toward Everett Turnpike South: Merrimack, Nashua, Manchester Airport
1840 ft · 44 sec
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13
Merge slight left onto Everett Turnpike
1.9 mi · 3 min · Everett Turnpike
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14
Take the exit slight right toward Airport
1.3 km · 1 min
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15
Keep slight right to continue on Merrimack
1425 ft · 38 sec
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16
Turn right onto South River Road
704 ft · 13 sec · South River Road
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17
Continue on Daniel Webster Highway
3.8 mi · 8 min · Daniel Webster Highway
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18
Turn slight left onto Loop Road
25 m · 4 sec · Loop Road
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19
Arrive at your destination
0 m · 1 sec · Loop Road
Car Route Details
A richer read on the saved driving route between Rochester and Merrimack.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Calef Highway
Merge slight left
20.3 mi · 00h 24m
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.
Slight Chance Rain Showers leaving Rochester and Mostly Cloudy near Merrimack.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rochester to Merrimack?
The road trip is about 52.7 miles (84.8 km) and usually takes 01h 07m 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?
Raymond is a useful midpoint, sitting about 26.3 miles from Rochester and 26.4 miles from Merrimack.
How much longer is the road route than the straight-line distance?
The direct path is about 40.1 miles (64.5 km), while the road route adds roughly 12.6 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 4:16 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.34 one way or $14.68 round trip. Estimated CO2 is about 16.5 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers around Rochester and Mostly Cloudy near Merrimack.
Stop Ideas Near Raymond
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 Raymond.
Exeter station
Durham–UNH station
Manchester, New Hampshire
Haverhill station
Flight Path Map
This map shows the direct air route between Rochester and Merrimack. Straight-line distance: 40.06 mi (64.47 km).
#1 Rochester
City in Strafford County, New Hampshire, United States
| Population | 31,719 |
| Coordinates | 43.3045300, -70.9756200 |
| Altitude | 70 |
| 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: 85 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 45m |
| 40 mph (64.37 km/h) | 01h 19m |
| 50 mph (80.47 km/h) | 01h 03m |
| 60 mph (96.56 km/h) | 00h 52m |
| 70 mph (112.65 km/h) | 00h 45m |
| 80 mph (129 km/h) | 00h 39m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $7.34 | $14.68 |
| Mid-grade | $4.46 | $8.29 | $16.58 |
| Premium | $4.86 | $9.04 | $18.07 |
| Diesel | $6.00 | $11.15 | $22.31 |
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 03, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.