Origin
Newmarket, NH
Afternoon in Newmarket on Sunday
Local time
12:43 PM
EDT
Current temp
57°F
Unavailable
Live forecast
Trip from Newmarket, NH to Portsmouth, NH
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
28m
Distance
14.9 mi
24 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$2
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 26m
★
6 AM
0h 28m
8 AM
0h 33m
10 AM
0h 30m
12 PM
0h 30m
3 PM
0h 30m
5 PM
0h 33m
8 PM
0h 27m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Newmarket, NH
Wikimedia Commons
Portsmouth, NH
Wikimedia Commons
Trip Overview
Newmarket, NH to Portsmouth, NH is 14.9 miles and takes about 28 minutes via Spaulding Turnpike, with a fuel budget near $2 and enough daylight to finish in a day. This short trip stays within the Northeast region, specifically New Hampshire for both departure and arrival. It's a quick hop, perfect for a day trip or as part of a larger journey through the area. You'll find the drive straightforward, with most of your time spent on a well-maintained turnpike. Consider this route if you're looking for efficiency and minimal travel time between these two New Hampshire locations.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Spaulding Turnpike | 3.5 mi | 4m |
| Newmarket Road | 3.2 mi | 6m |
| Piscataqua Road | 2.9 mi | 5m |
| US 4 | 1.6 mi | 3m |
| US 1 Bypass | 1.1 mi | 2m |
| Market Street | 0.6 mi | 1m |
| Dover Road | 0.6 mi | 1m |
| North Main Street | 0.5 mi | 1m |
Longest stretch:
Spaulding Turnpike
— 3.5 mi, about 4m
Turn-by-Turn Driving Directions
Step-by-step road directions between Newmarket, NH and Portsmouth, NH.
1
Start on NH 108
0.5 mi
·
1 min
·
North Main Street
2
Continue on NH 108
3.2 mi
·
6 min
·
Newmarket Road
3
Turn right onto NH 108
0.6 mi
·
1 min
·
Dover Road
4
Take the ramp
0.2 mi
·
23 sec
5
Merge onto US 4
2.9 mi
·
5 min
·
Piscataqua Road
6
Continue on US 4
0.2 mi
·
27 sec
·
Scammell Bridge
7
Continue on US 4
0.2 mi
·
21 sec
·
Boston Harbor Road
8
Enter roundabout onto US 4
178 ft
·
4 sec
·
US 4
9
Continue on US 4
0.1 mi
·
16 sec
·
US 4
10
Take the exit onto US 4
0.5 mi
·
1 min
·
US 4
11
Merge onto NH 16
3.5 mi
·
4 min
·
Spaulding Turnpike
12
Take the exit onto US 4; NH 16
0.9 mi
·
1 min
·
US 4; NH 16
Toward I 95 North
Use the slight left lane.
13
Enter roundabout onto US 1 Bypass
0.1 mi
·
19 sec
·
US 1 Bypass
Toward US 1 Bypass North: Portsmouth, Woodbury Avenue
14
Continue on US 1 Bypass
1.0 mi
·
2 min
·
US 1 Bypass
Toward US 1 Bypass North: Portsmouth, Woodbury Avenue
15
Turn left onto Submarine Way
0.1 mi
·
17 sec
·
Submarine Way
Use the left lane.
16
Turn right onto Market Street
0.6 mi
·
1 min
·
Market Street
17
At end of road, turn right onto US 1
52 ft
·
1 sec
·
Congress Street
18
Arrive at destination
US 1
Heads-up: tricky spots
5 of 125 decision points cluster between mile 3.7 and 14.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
3.7 mi into trip
|
~7m in
|
NH 108 / Dover Road
Turn right onto NH 108 / Dover Road
Navigation decision point
5
7.9 mi into trip
|
~15m in
|
US 4
Enter roundabout onto US 4
Roundabout - know your exit number before entering
6
12.1 mi into trip
|
~22m in
|
US 4; NH 16
Take the exit onto US 4; NH 16 toward I 95 North
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight left lane.
Toward I 95 North
6
13 mi into trip
|
~24m in
|
US 1 Bypass
Enter roundabout onto US 1 Bypass toward US 1 Bypass North: Portsmouth, Woodbury Avenue
Roundabout - know your exit number before entering. Multiple destination signs - pick the right one
Toward US 1 Bypass North: Portsmouth, Woodbury...
5
14.1 mi into trip
|
~26m in
|
Submarine Way
Turn left onto Submarine Way
Lane positioning matters here
Use the left lane.
Fuel & Cost
Regular Gas
$2.40 one way
$4.80 round trip
$4.09/gal
25.4 MPG avg
5 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.50 | $2.64 | $5.28 |
| premium | $4.86 | $2.85 | $5.71 |
| diesel | $5.61 | $3.29 | $6.58 |
Estimated Tolls: $0.25
Spaulding Turnpike
(3.5 mi)
$0.25
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Drive Cost (one way)
Fuel
$2
Tolls
$0
Total
$3
Estimated CO2 emission: 5.2 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $2 in charging · 0 stops · 60% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 4.5 | 0 | $1.56 | $0.72 |
| Efficient EV | 3.7 | 0 | $1.30 | $0.60 |
| EV Truck/SUV | 6 | 0 | $2.09 | $0.95 |
Gas CO2
5 kg
EV CO2
2 kg (60% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
Portsmouth, NH
Afternoon in Portsmouth on Sunday
Local time
12:43 PM
EDT
Current temp
42°F
Unavailable
Live forecast
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
15 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
28m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
What kind of drive is this?
This drive offers a mixed experience, with 42% of the journey on highway. You'll navigate stretches of Newmarket Road and Piscataqua Road before merging onto the Spaulding Turnpike, where the longest uninterrupted segment spans 3.5 miles. While not an entirely highway experience, the turnpike provides a faster pace for a significant portion of the trip. Expect a blend of local road driving and quicker travel, making it a varied, though brief, driving experience.
42% highway, the rest on surface roads — varied driving throughout.
18 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 3.5 mi on Spaulding Turnpike.
How Hard Is This Drive?
5/10
This route mixes highway mileage with some local-road sections near the start or finish. You will hit about 12 points where you need to pay attention to lane position or signs. The trickiest moment comes around 3.7 miles in near NH 108 / Dover Road.
Driving Effort
5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 14.9 miles you will encounter 12 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 3.7 miles (NH 108 / Dover Road): Navigation decision point; at 7.9 miles (US 4): Roundabout - know your exit number before entering; at 12.1 miles (US 4; NH 16): Exit ramp - move to the correct lane early. Lane positioning matters here.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 28m. Total distance: 14.9 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
28m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (42%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 3.5 miles on Spaulding Turnpike. The full list of main roads is in the Roads section above.
Expect about $0.25 in tolls one way, starting with Spaulding Turnpike. Most Northeast and Midwest toll agencies accept E-ZPass; in the West and Texas, transponders like TxTag or FasTrak apply. If you do not have a transponder, cashless tolling plates will mail a bill to the vehicle's registered address — usually with a surcharge, so a rental-car toll pass is often cheaper than paying by mail.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
Mostly yes along the main roads, but rural stretches through NH can have sparse or no coverage. Before you leave, download offline Google Maps or Apple Maps for the route, and consider downloading music or podcasts instead of streaming. If you depend on data for navigation, keep a paper backup of the turn-by-turn directions.
The main spots that need attention: at 3.7 miles (NH 108 / Dover Road): Navigation decision point; at 7.9 miles (US 4): Roundabout - know your exit number before entering; at 12.1 miles (US 4; NH 16): Exit ramp - move to the correct lane early. Lane positioning matters here.
Yes. A round trip is manageable in a single day if you plan a break at Portsmouth, NH before heading back.
How this page is built
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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