How far is Merrimack, NH from Newmarket, NH?
The driving distance from Merrimack, NH to Newmarket, NH is about 42.4 miles (68.3 km), with a travel time of about 01h 05m by car.
- The straight-line flight distance is about 32 miles (51.5 km).
- For a round trip, plan for roughly 02h 11m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EST.
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 05m.
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 Rockingham County, New Hampshire, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Light Rain
Light Rain Likely
Driving Route Map
The map below follows the saved road route between Merrimack and Newmarket.
Turn-by-Turn Driving Directions
Step-by-step road directions between Merrimack and Newmarket.
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1
Start on Loop Road
25 m · 6 sec · Loop Road
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2
Turn straight onto Daniel Webster Highway
3.8 mi · 8 min · Daniel Webster Highway
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3
Continue on South River Road
2135 ft · 46 sec · South River Road
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4
Take the ramp right toward Concord, Nashua
2141 ft · 52 sec
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5
Merge slight left onto Raymond Wieczorek Drive
653 ft · 11 sec · Raymond Wieczorek Drive
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6
Keep slight right to continue on Bedford, Manchester
1.3 km · 2 min
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7
Merge slight left onto Everett Turnpike
1.3 mi · 2 min · Everett Turnpike
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8
Take the exit slight right toward I 293 South, NH 101 East: Exeter, Portsmouth
2925 ft · 1 min
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9
Merge slight left
4.6 mi · 6 min
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10
Keep slight right to continue on NH 101 East: Portsmouth, Seacoast
19.1 mi · 22 min
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11
Take the exit slight right toward NH 125: Epping, Kingston
1211 ft · 37 sec
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12
Turn left onto Calef Highway
4.3 mi · 7 min · Calef Highway
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13
Turn right onto Lee Hill Road
2004 ft · 43 sec · Lee Hill Road
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14
Continue on North River Road
1 mi · 2 min · North River Road
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15
Turn right onto Wadleigh Falls Road
4.2 mi · 8 min · Wadleigh Falls Road
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16
Continue on South Main Street
1.2 mi · 3 min · South Main Street
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17
Arrive at your destination
0 m · 1 sec · North Main Street
Car Route Details
A richer read on the saved driving route between Merrimack and Newmarket.
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.
NH 101 East
Keep slight right to continue on NH 101 East: Portsmouth, Seacoast
19.1 mi · 00h 22m
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.
Chance Light Rain leaving Merrimack and Light Rain Likely near Newmarket.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Merrimack to Newmarket?
The road trip is about 42.4 miles (68.3 km) and usually takes 01h 05m 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?
Candia is a useful midpoint, sitting about 21.2 miles from Merrimack and 21.3 miles from Newmarket.
How much longer is the road route than the straight-line distance?
The direct path is about 32 miles (51.5 km), while the road route adds roughly 10.4 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 EST. If you want a more comfortable same-day return, try to leave by 4:18 PM EST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.21 one way or $12.41 round trip. Estimated CO2 is about 13.3 kg one way.
What should you check before leaving?
Before you leave, expect Chance Light Rain around Merrimack and Light Rain Likely near Newmarket.
Stop Ideas Near Candia
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 Candia.
Manchester, New Hampshire
Concord, New Hampshire
Durham–UNH station
Exeter station
Flight Path Map
This map shows the direct air route between Merrimack and Newmarket. Straight-line distance: 31.99 mi (51.48 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 Newmarket
Newmarket is a place in New Hampshire, United States.
| Population | 0 |
| Coordinates | 43.0828600, -70.9350600 |
| Altitude | 12 |
| Country | United States |
End: Newmarket (-70.93506, 43.08286)
Estimated Travel Time
Distance: 68 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 24m |
| 40 mph (64.37 km/h) | 01h 03m |
| 50 mph (80.47 km/h) | 00h 50m |
| 60 mph (96.56 km/h) | 00h 42m |
| 70 mph (112.65 km/h) | 00h 36m |
| 80 mph (129 km/h) | 00h 31m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.14 | $6.21 | $12.41 |
| Mid-grade | $4.75 | $7.13 | $14.25 |
| Premium | $5.22 | $7.82 | $15.65 |
| Diesel | $6.30 | $9.46 | $18.91 |
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 · Nov 06, 2026