How far is Lyme, NH from Merrimack, NH?
The driving distance from Lyme, NH to Merrimack, NH is about 95.3 miles (153.4 km), with a travel time of about 01h 45m by car.
- The straight-line flight distance is about 73.3 miles (117.9 km).
- For a round trip, plan for roughly 03h 31m 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 45m.
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.
Partly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Lyme and Merrimack.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lyme and Merrimack.
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1
Start on the route
119 m · 33 sec
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2
At the end of the road, turn left onto Main Street
1042 ft · 22 sec · Main Street
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3
Continue on Union Street
1747 ft · 30 sec · Union Street
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4
Continue on Dartmouth College Highway
3.1 mi · 5 min · Dartmouth College Highway
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5
Continue on Lyme Road
4.9 mi · 7 min · Lyme Road
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6
Enter the roundabout and take exit 1 toward Lyme Road
24 m · 2 sec · Lyme Road
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7
Exit the roundabout onto Lyme Road
1.1 km · 1 min · Lyme Road
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8
Enter the roundabout and take exit 1 toward Lyme Road
28 m · 5 sec · Lyme Road
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9
Exit the roundabout onto Lyme Road
1.4 km · 2 min · Lyme Road
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10
Turn left onto North Park Street
1.2 km · 2 min · North Park Street
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11
Continue on Lebanon Street
1.3 mi · 3 min · Lebanon Street
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12
Continue on Hanover Street
3 mi · 6 min · Hanover Street
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13
Turn left onto I 89 South, NH 10 South
1379 ft · 36 sec
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14
Merge slight left
55.9 mi · 1 hr 5 min
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15
Take the exit slight right toward I 93 South Toll: Manchester, Boston
1 km · 1 min
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16
Merge slight right onto Everett Turnpike
5.7 mi · 7 min · Everett Turnpike
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17
Keep slight left to continue on Everett Turnpike
2 mi · 2 min · Everett Turnpike
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18
Keep slight left to continue on Everett Turnpike
8.2 mi · 11 min · Everett Turnpike
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19
Keep slight left to continue on Everett Turnpike
2.4 mi · 3 min · Everett Turnpike
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20
Take the exit slight right toward Airport
1.3 km · 1 min
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21
Keep slight right to continue on Merrimack
1425 ft · 38 sec
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22
Turn right onto South River Road
704 ft · 13 sec · South River Road
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23
Continue on Daniel Webster Highway
3.8 mi · 8 min · Daniel Webster Highway
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24
Turn slight left onto Loop Road
25 m · 4 sec · Loop Road
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25
Arrive at your destination
0 m · 1 sec · Loop Road
Car Route Details
A richer read on the saved driving route between Lyme 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.
I 89 South
Merge slight left
55.9 mi · 01h 05m
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 Lyme 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 Lyme to Merrimack?
The road trip is about 95.3 miles (153.4 km) and usually takes 01h 45m 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?
Newmarket is a useful midpoint, sitting about 47.6 miles from Lyme and 47.7 miles from Merrimack.
How much longer is the road route than the straight-line distance?
The direct path is about 73.3 miles (117.9 km), while the road route adds roughly 22 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 2:58 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.26 one way or $26.51 round trip. Estimated CO2 is about 29.9 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Lyme and Mostly Sunny near Merrimack.
Stop Ideas Near Newmarket
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 Newmarket.
Concord, New Hampshire
Tilton, New Hampshire
Claremont
New Hampton, New Hampshire
Flight Path Map
This map shows the direct air route between Lyme and Merrimack. Straight-line distance: 73.25 mi (117.89 km).
#1 Lyme
Town in New London County, Connecticut, United States
| Population | 1,685 |
| Coordinates | 43.8095100, -72.1559200 |
| Altitude | 166 |
| 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: 153 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 10m |
| 40 mph (64.37 km/h) | 02h 22m |
| 50 mph (80.47 km/h) | 01h 54m |
| 60 mph (96.56 km/h) | 01h 35m |
| 70 mph (112.65 km/h) | 01h 21m |
| 80 mph (129 km/h) | 01h 11m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $13.26 | $26.51 |
| Mid-grade | $4.46 | $14.98 | $29.95 |
| Premium | $4.86 | $16.32 | $32.65 |
| Diesel | $6.00 | $20.15 | $40.30 |
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.