How far is Merrimack, NH from Lyme, NH?
The driving distance from Merrimack, NH to Lyme, NH is about 95.9 miles (154.4 km), with a travel time of about 02h 10m by car.
- The straight-line flight distance is about 73.3 miles (117.9 km).
- For a round trip, plan for roughly 04h 20m 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 02h 10m.
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.
Mostly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Merrimack and Lyme.
Turn-by-Turn Driving Directions
Step-by-step road directions between Merrimack and Lyme.
-
1
Start on Loop Road
25 m · 6 sec · Loop Road
-
2
Turn straight onto Daniel Webster Highway
3.8 mi · 8 min · Daniel Webster Highway
-
3
Continue on South River Road
2135 ft · 46 sec · South River Road
-
4
Take the ramp right toward Concord, Nashua
2141 ft · 52 sec
-
5
Merge slight left onto Raymond Wieczorek Drive
653 ft · 11 sec · Raymond Wieczorek Drive
-
6
Keep slight right to continue on Bedford, Manchester
1.3 km · 2 min
-
7
Merge slight left onto Everett Turnpike
11.2 mi · 15 min · Everett Turnpike
-
8
Keep slight left to continue on Everett Turnpike
7 mi · 8 min · Everett Turnpike
-
9
Take the exit slight right toward I 89 North: Lebanon, White River Junction Vermont
2720 ft · 1 min
-
10
Keep slight right to continue on I 89 North: Lebanon, White River Junction Vermont
1236 ft · 43 sec
-
11
Merge slight left
56.1 mi · 1 hr 5 min
-
12
Take the exit slight right toward NH 120: Lebanon, Hanover
1063 ft · 36 sec
-
13
Turn right onto Hanover Street
2.9 mi · 6 min · Hanover Street
-
14
Continue on Lebanon Street
1.3 mi · 3 min · Lebanon Street
-
15
Turn slight right onto South Park Street
1.2 km · 2 min · South Park Street
-
16
Turn right onto Lyme Road
1.4 km · 2 min · Lyme Road
-
17
Enter the roundabout and take exit 2 toward Lyme Road
54 m · 11 sec · Lyme Road
-
18
Exit the roundabout onto Lyme Road
1.1 km · 1 min · Lyme Road
-
19
Enter the roundabout and take exit 1 toward Lyme Road
23 m · 2 sec · Lyme Road
-
20
Exit the roundabout onto Lyme Road
4.9 mi · 7 min · Lyme Road
-
21
Continue on Dartmouth College Highway
3.1 mi · 5 min · Dartmouth College Highway
-
22
Continue on Union Street
1734 ft · 29 sec · Union Street
-
23
Continue on Main Street
650 ft · 11 sec · Main Street
-
24
Continue on Main Street
124 m · 15 sec · Main Street
-
25
Turn right onto On the Common
22 m · 3 sec · On the Common
-
26
Turn slight left
98 m · 23 sec
-
27
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Merrimack and Lyme.
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 North
Merge slight left
56.1 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.
Mostly Sunny leaving Merrimack and Partly Sunny near Lyme.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Merrimack to Lyme?
The road trip is about 95.9 miles (154.4 km) and usually takes 02h 10m 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 48 miles from Merrimack and 48 miles from Lyme.
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 22.6 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 2:10 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.37 one way or $26.75 round trip. Estimated CO2 is about 30.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Merrimack and Partly Sunny near Lyme.
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 Merrimack and Lyme. Straight-line distance: 73.25 mi (117.89 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 Lyme
Town in New London County, Connecticut, United States
| Population | 1,685 |
| Coordinates | 43.8095100, -72.1559200 |
| Altitude | 166 |
| Country | United States |
End: Lyme (-72.15592, 43.80951)
Estimated Travel Time
Distance: 154 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 11m |
| 40 mph (64.37 km/h) | 02h 23m |
| 50 mph (80.47 km/h) | 01h 55m |
| 60 mph (96.56 km/h) | 01h 35m |
| 70 mph (112.65 km/h) | 01h 22m |
| 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 | $13.37 | $26.75 |
| Mid-grade | $4.46 | $15.11 | $30.22 |
| Premium | $4.86 | $16.47 | $32.94 |
| Diesel | $6.00 | $20.33 | $40.66 |
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.