How far is Portsmouth, NH from Stratham, NH?
The driving distance from Portsmouth, NH to Stratham, NH is about 11.3 miles (18.2 km), with a travel time of about 00h 21m by car.
- The straight-line flight distance is about 8.7 miles (14 km).
- For a round trip, plan for roughly 00h 43m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 21m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Rockingham County, New Hampshire, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Portsmouth and Stratham.
Turn-by-Turn Driving Directions
Step-by-step road directions between Portsmouth and Stratham.
-
1
Start on Congress Street
124 m · 15 sec · Congress Street
-
2
Turn right onto Fleet Street
141 m · 17 sec · Fleet Street
-
3
Turn right onto Hanover Street
662 ft · 27 sec · Hanover Street
-
4
At the end of the road, turn left onto Market Street
1 mi · 3 min · Market Street
-
5
Take the ramp left toward I 95 South: Hampton, Boston
1468 ft · 36 sec
-
6
Merge slight left
2.2 mi · 3 min
-
7
Take the exit slight right
1835 ft · 1 min
-
8
Turn left onto Greenland Road
2.2 mi · 4 min · Greenland Road
-
9
Continue on Portsmouth Avenue
4.6 mi · 8 min · Portsmouth Avenue
-
10
Enter the roundabout and take exit 3 toward Stratham Traffic Circle
2036 ft · 49 sec · Portsmouth Avenue
-
11
Exit the rotary onto Portsmouth Avenue
151 m · 10 sec · Portsmouth Avenue
-
12
Arrive at your destination
0 m · 1 sec · Portsmouth Avenue
Car Route Details
A richer read on the saved driving route between Portsmouth and Stratham.
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.
Portsmouth Avenue
Continue on Portsmouth Avenue
4.56 mi · 00h 08m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Sunny leaving Portsmouth and Sunny near Stratham.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Portsmouth to Stratham?
The road trip is about 11.3 miles (18.2 km) and usually takes 00h 21m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Greenland is a useful midpoint, sitting about 5.7 miles from Portsmouth and 5.7 miles from Stratham.
How much longer is the road route than the straight-line distance?
The direct path is about 8.7 miles (14 km), while the road route adds roughly 2.6 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:46 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $1.72 one way or $3.44 round trip. Estimated CO2 is about 3.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Portsmouth and Sunny near Stratham.
Stop Ideas Near Greenland
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Old City Hall
Dover City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Greenland.
Portsmouth, New Hampshire
Exeter station
Durham–UNH station
Dover Transportation Center
Flight Path Map
This map shows the direct air route between Portsmouth and Stratham. Straight-line distance: 8.69 mi (13.98 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 Stratham
Town in Rockingham County, New Hampshire
| Population | 7,579 |
| Coordinates | 43.0239800, -70.9136700 |
| Altitude | 13 |
| Country | United States |
End: Stratham (-70.91367, 43.02398)
Estimated Travel Time
Distance: 18 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 22m |
| 40 mph (64.37 km/h) | 00h 17m |
| 50 mph (80.47 km/h) | 00h 13m |
| 60 mph (96.56 km/h) | 00h 11m |
| 70 mph (112.65 km/h) | 00h 09m |
| 80 mph (129 km/h) | 00h 08m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.29 | $1.72 | $3.44 |
| Mid-grade | $4.88 | $1.95 | $3.91 |
| Premium | $5.34 | $2.13 | $4.27 |
| Diesel | $6.35 | $2.54 | $5.08 |
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