How far is Newmarket, NH from Portsmouth, NH?
The driving distance from Newmarket, NH to Portsmouth, NH is about 79.3 miles (127.6 km), with a travel time of about 01h 19m by car.
- The straight-line flight distance is about 57.9 miles (93.2 km).
- For a round trip, plan for roughly 02h 38m 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 19m.
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 the U.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Newmarket and Portsmouth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Newmarket and Portsmouth.
-
1
Start on Newmarket Road
1.3 mi · 5 min · Newmarket Road
-
2
Continue on Newmarket Road
127 m · 16 sec · Newmarket Road
-
3
Turn right onto State Route 103
1.2 km · 1 min · State Route 103
-
4
Take the ramp slight right
1997 ft · 49 sec
-
5
Merge slight left
19.8 mi · 23 min
-
6
Take the exit slight right toward I 93 South Toll: Manchester, Boston
1 km · 1 min
-
7
Merge slight right onto Everett Turnpike
5.7 mi · 7 min · Everett Turnpike
-
8
Keep slight left to continue on Everett Turnpike
2 mi · 2 min · Everett Turnpike
-
9
Keep slight right to continue on I 93 South: Salem, Boston
5.7 mi · 7 min
-
10
Take the exit slight left toward NH 101 East: Seacoast, Portsmouth
1.2 km · 1 min
-
11
Merge slight right
30.5 mi · 36 min
-
12
Take the exit slight right toward I 95: Portsmouth, Boston
1.3 km · 2 min
-
13
Keep slight left to continue on I 95 North: Portsmouth, Maine, Pease International Tradeport
2454 ft · 1 min
-
14
Continue straight
1816 ft · 44 sec
-
15
Merge slight left onto Blue Star Turnpike
7 mi · 8 min · Blue Star Turnpike
-
16
Keep slight right to continue on Blue Star Turnpike
1.9 mi · 3 min · Blue Star Turnpike
-
17
Take the exit slight right
1313 ft · 35 sec
-
18
Turn right onto Market Street
1 mi · 3 min · Market Street
-
19
At the end of the road, turn right onto Congress Street
16 m · 1 sec · Congress Street
-
20
Arrive at your destination
0 m · 1 sec · Congress Street
Car Route Details
A richer read on the saved driving route between Newmarket and Portsmouth.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
NH 101 East
Merge slight right
30.5 mi · 00h 36m
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 Newmarket and Mostly Sunny near Portsmouth.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Newmarket to Portsmouth?
The road trip is about 79.3 miles (127.6 km) and usually takes 01h 19m 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?
Auburn is a useful midpoint, sitting about 39.6 miles from Newmarket and 39.7 miles from Portsmouth.
How much longer is the road route than the straight-line distance?
The direct path is about 57.9 miles (93.2 km), while the road route adds roughly 21.4 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 EDT. If you want a more comfortable same-day return, try to leave by 3:52 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.02 one way or $24.05 round trip. Estimated CO2 is about 24.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Newmarket and Mostly Sunny near Portsmouth.
Stop Ideas Near Auburn
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 Auburn.
Manchester, New Hampshire
Nashua, NH
Concord, New Hampshire
Exeter station
Flight Path Map
This map shows the direct air route between Newmarket and Portsmouth. Straight-line distance: 57.91 mi (93.19 km).
#1 Newmarket
Town in New Hampshire
| Population | 9,207 |
| Coordinates | 43.2778500, -71.8734100 |
| Altitude | 186 |
| Country | United States |
#2 Portsmouth
City in Rockingham County, New Hampshire, United States
| Population | 21,557 |
| Coordinates | 43.0770400, -70.7576600 |
| Altitude | 6 |
| Country | United States |
End: Congress Street (-70.757617, 43.077054)
Estimated Travel Time
Distance: 128 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 38m |
| 40 mph (64.37 km/h) | 01h 58m |
| 50 mph (80.47 km/h) | 01h 35m |
| 60 mph (96.56 km/h) | 01h 19m |
| 70 mph (112.65 km/h) | 01h 07m |
| 80 mph (129 km/h) | 00h 59m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.29 | $12.02 | $24.05 |
| Mid-grade | $4.88 | $13.68 | $27.35 |
| Premium | $5.34 | $14.94 | $29.89 |
| Diesel | $6.35 | $17.79 | $35.57 |
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 · Oct 15, 2026