How far is Portsmouth, NH from Plymouth, NH?
The driving distance from Portsmouth, NH to Plymouth, NH is about 87.4 miles (140.6 km), with a travel time of about 02h 01m by car.
- The straight-line flight distance is about 66.2 miles (106.6 km).
- For a round trip, plan for roughly 04h 03m 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 01m.
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.
A census-designated place in Merrimack County, New Hampshire.
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 Portsmouth and Plymouth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Portsmouth and Plymouth.
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1
Start on Congress Street
954 ft · 34 sec · Congress Street
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2
Turn right onto Maplewood Avenue
1.1 km · 2 min · Maplewood Avenue
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3
Turn left onto Cutts Street
139 m · 16 sec · Cutts Street
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4
Turn slight right
1 km · 1 min
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5
Exit the rotary onto NH 16 North: Concord, Rochester
2261 ft · 51 sec
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6
Take the exit straight
961 ft · 15 sec
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7
Keep slight left to continue on Spaulding Turnpike North, NH 16 North, US 4 West
1364 ft · 21 sec
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8
Merge slight left onto Spaulding Turnpike
3.8 mi · 5 min · Spaulding Turnpike
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9
Take the exit slight right toward US 4: Dover Point Road, Durham-UNH, Concord
1594 ft · 39 sec
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10
Keep slight left to continue on US 4: Durham-UNH, Concord
72 m · 8 sec
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11
Turn left
1833 ft · 52 sec
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12
Enter the roundabout and take exit 2 toward Boston Harbor Road
37 m · 3 sec · Boston Harbor Road
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13
Exit the roundabout onto Boston Harbor Road
811 ft · 22 sec · Boston Harbor Road
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14
Continue on Scammell Bridge
1132 ft · 28 sec · Scammell Bridge
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15
Continue on Piscataqua Road
8.8 mi · 14 min · Piscataqua Road
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16
Enter the roundabout and take exit 2 toward Lee Circle
48 m · 5 sec · Concord Road
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17
Exit the rotary onto Concord Road
2575 ft · 56 sec · Concord Road
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18
Continue on Old Concord Turnpike
1.8 mi · 3 min · Old Concord Turnpike
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19
Continue on Old Turnpike Road
5.1 mi · 7 min · Old Turnpike Road
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20
Continue on First New Hampshire Turnpike
7.8 mi · 13 min · First New Hampshire Turnpike
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21
Continue on Dover Road
4.3 mi · 7 min · Dover Road
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22
Enter the roundabout and take exit 2 toward Epsom Circle
81 m · 7 sec · Dover Road
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23
Exit the rotary onto Dover Road
4.9 mi · 8 min · Dover Road
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24
Keep slight right
4.6 mi · 7 min
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25
Take the exit slight right toward I 93 North, US 4 West: Plymouth
16 mi · 18 min
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26
Continue on Sen Styles Bridges Highway
1.2 km · 47 sec · Sen Styles Bridges Highway
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27
Continue on Styles Bridges Highway
24.3 mi · 26 min · Styles Bridges Highway
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28
Take the exit slight right toward NH 175A: Plymouth
1078 ft · 38 sec
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29
Turn right onto NH Route 175A
2695 ft · 1 min · NH Route 175A
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30
Continue on Holderness Road
118 m · 20 sec · Holderness Road
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31
Enter the roundabout and take exit 3 toward Main Street
53 m · 16 sec · Main Street
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32
Exit the roundabout onto Main Street
607 ft · 21 sec · Main Street
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33
Continue on Post Office Square
133 m · 20 sec · Post Office Square
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34
At the end of the road, turn left onto Highland Street
27 m · 2 sec · Highland Street
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35
Arrive at your destination
0 m · 1 sec · Highland Street
Car Route Details
A richer read on the saved driving route between Portsmouth and Plymouth.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Styles Bridges Highway
Continue on Styles Bridges Highway
24.3 mi · 00h 26m
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 Portsmouth and Mostly Sunny near Plymouth.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Portsmouth to Plymouth?
The road trip is about 87.4 miles (140.6 km) and usually takes 02h 01m 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?
East Concord is a useful midpoint, sitting about 43.6 miles from Portsmouth and 43.7 miles from Plymouth.
How much longer is the road route than the straight-line distance?
The direct path is about 66.2 miles (106.6 km), while the road route adds roughly 21.2 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 2:26 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.23 one way or $26.45 round trip. Estimated CO2 is about 27.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Portsmouth and Mostly Sunny near Plymouth.
Stop Ideas Near East Concord
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 East Concord.
Concord, New Hampshire
Tilton, New Hampshire
Manchester, New Hampshire
New Hampton, New Hampshire
Flight Path Map
This map shows the direct air route between Portsmouth and Plymouth. Straight-line distance: 66.24 mi (106.6 km).
#1 Portsmouth
City in Rockingham County, New Hampshire, United States
| Population | 21,557 |
| Coordinates | 43.0770400, -70.7576600 |
| Altitude | 6 |
| Country | United States |
#2 Plymouth
Town in New Hampshire
| Population | 6,916 |
| Coordinates | 43.7570200, -71.6881300 |
| Altitude | 157 |
| Country | United States |
End: Plymouth (-71.68813, 43.75702)
Estimated Travel Time
Distance: 141 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 54m |
| 40 mph (64.37 km/h) | 02h 11m |
| 50 mph (80.47 km/h) | 01h 44m |
| 60 mph (96.56 km/h) | 01h 27m |
| 70 mph (112.65 km/h) | 01h 14m |
| 80 mph (129 km/h) | 01h 05m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.29 | $13.23 | $26.45 |
| Mid-grade | $4.88 | $15.04 | $30.09 |
| Premium | $5.34 | $16.44 | $32.88 |
| Diesel | $6.35 | $19.56 | $39.13 |
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