How far is Peterborough, NH from Portsmouth, NH?
The driving distance from Peterborough, NH to Portsmouth, NH is about 82.2 miles (132.3 km), with a travel time of about 01h 30m by car.
- The straight-line flight distance is about 62 miles (99.8 km).
- For a round trip, plan for roughly 03h 01m 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 30m.
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.
Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Peterborough and Portsmouth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Peterborough and Portsmouth.
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1
Start on Peterborough Bypass
21 m · 4 sec · Peterborough Bypass
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2
Continue on Wilton Road
4 mi · 7 min · Wilton Road
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3
Continue on Gibbons Highway
9.3 mi · 15 min · Gibbons Highway
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4
Continue on Elm Street
1.3 mi · 3 min · Elm Street
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5
Turn right onto State Route 101
11.3 mi · 16 min · State Route 101
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6
Continue straight
6.3 mi · 10 min
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7
Take the exit slight right
6.9 mi · 9 min
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8
Keep slight right to continue on NH 101 East: Portsmouth, Seacoast
31.3 mi · 37 min
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9
Take the exit slight right toward I 95: Portsmouth, Boston
1.3 km · 2 min
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10
Keep slight left to continue on I 95 North: Portsmouth, Maine, Pease International Tradeport
2454 ft · 1 min
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11
Continue straight
1816 ft · 44 sec
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12
Merge slight left onto Blue Star Turnpike
7 mi · 8 min · Blue Star Turnpike
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13
Keep slight right to continue on Blue Star Turnpike
1.9 mi · 3 min · Blue Star Turnpike
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14
Take the exit slight right
1313 ft · 35 sec
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15
Turn right onto Market Street
1 mi · 3 min · Market Street
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16
At the end of the road, turn right onto Congress Street
16 m · 1 sec · Congress Street
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17
Arrive at your destination
0 m · 1 sec · Congress Street
Car Route Details
A richer read on the saved driving route between Peterborough and Portsmouth.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
NH 101 East
Keep slight right to continue on NH 101 East: Portsmouth, Seacoast
31.3 mi · 00h 37m
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.
Sunny leaving Peterborough and Sunny near Portsmouth.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Peterborough to Portsmouth?
The road trip is about 82.2 miles (132.3 km) and usually takes 01h 30m 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 41 miles from Peterborough and 41.2 miles from Portsmouth.
How much longer is the road route than the straight-line distance?
The direct path is about 62 miles (99.8 km), while the road route adds roughly 20.2 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 3:28 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.45 one way or $24.91 round trip. Estimated CO2 is about 25.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Peterborough and 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 Peterborough and Portsmouth. Straight-line distance: 62.03 mi (99.82 km).
#1 Peterborough
Town in Hillsborough County, New Hampshire, United States of America
| Population | 6,743 |
| Coordinates | 42.8706400, -71.9517500 |
| Altitude | 219 |
| 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: 132 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 44m |
| 40 mph (64.37 km/h) | 02h 03m |
| 50 mph (80.47 km/h) | 01h 38m |
| 60 mph (96.56 km/h) | 01h 22m |
| 70 mph (112.65 km/h) | 01h 10m |
| 80 mph (129 km/h) | 01h 01m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.29 | $12.45 | $24.91 |
| Mid-grade | $4.88 | $14.16 | $28.33 |
| Premium | $5.34 | $15.48 | $30.95 |
| Diesel | $6.35 | $18.42 | $36.84 |
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