How far is Portsmouth, NH from Peterborough, NH?
The driving distance from Portsmouth, NH to Peterborough, NH is about 81.9 miles (131.8 km), with a travel time of about 01h 54m by car.
- The straight-line flight distance is about 62 miles (99.8 km).
- For a round trip, plan for roughly 03h 49m 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 54m.
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.
Census-designated place in Merrimack County, New Hampshire
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 Peterborough.
Turn-by-Turn Driving Directions
Step-by-step road directions between Portsmouth and Peterborough.
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1
Start on Congress Street
124 m · 15 sec · Congress Street
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2
Turn right onto Fleet Street
141 m · 17 sec · Fleet Street
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3
Turn right onto Hanover Street
662 ft · 27 sec · Hanover Street
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4
At the end of the road, turn left onto Market Street
1 mi · 3 min · Market Street
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5
Take the ramp left toward I 95 South: Hampton, Boston
1468 ft · 36 sec
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6
Merge slight left
8.8 mi · 11 min
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7
Take the exit slight right toward NH 101: Hampton, Manchester
3185 ft · 1 min
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8
Keep slight right to continue on 101 West: Manchester, Concord, Exeter
2083 ft · 51 sec
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9
Merge slight left onto Exeter-Hampton Expressway
32.4 mi · 38 min · Exeter-Hampton Expressway
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10
Keep slight right to continue on I 293 North, NH 101 West: Manchester Airport, Manchester, Bedford
3.3 mi · 4 min
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11
Keep slight left to continue on NH 101 West: Bedford, Nashua
2.2 mi · 3 min
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12
Turn left
2229 ft · 49 sec
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13
Continue straight
17.2 mi · 26 min
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14
Turn left onto Elm Street
1.4 mi · 3 min · Elm Street
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15
Continue on Gibbons Highway
9.3 mi · 15 min · Gibbons Highway
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16
Continue on Wilton Road
4 mi · 7 min · Wilton Road
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17
Continue on State Route 101
54 m · 5 sec · State Route 101
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18
Merge slight left onto Peterborough Bypass
49 m · 10 sec · Peterborough Bypass
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19
Turn left onto Ames Court
53 m · 9 sec · Ames Court
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20
Turn right
77 m · 21 sec
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21
Turn right onto Mercer Avenue
68 m · 13 sec · Mercer Avenue
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22
Turn right onto Peterborough Bypass
529 ft · 15 sec · Peterborough Bypass
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23
Arrive at your destination
0 m · 1 sec · Peterborough Bypass
Car Route Details
A richer read on the saved driving route between Portsmouth and Peterborough.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Exeter-Hampton Expressway
Merge slight left onto Exeter-Hampton Expressway
32.4 mi · 00h 38m
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 Sunny near Peterborough.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Portsmouth to Peterborough?
The road trip is about 81.9 miles (131.8 km) and usually takes 01h 54m 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?
South Hooksett is a useful midpoint, sitting about 40.8 miles from Portsmouth and 41 miles from Peterborough.
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 19.9 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 2:40 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.41 one way or $24.82 round trip. Estimated CO2 is about 25.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Portsmouth and Sunny near Peterborough.
Stop Ideas Near South Hooksett
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 South Hooksett.
Manchester, New Hampshire
Concord, New Hampshire
Nashua, NH
Exeter station
Flight Path Map
This map shows the direct air route between Portsmouth and Peterborough. Straight-line distance: 62.03 mi (99.82 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 Peterborough
Town in Hillsborough County, New Hampshire, United States of America
| Population | 6,743 |
| Coordinates | 42.8706400, -71.9517500 |
| Altitude | 219 |
| Country | United States |
End: Peterborough (-71.95175, 42.87064)
Estimated Travel Time
Distance: 132 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 43m |
| 40 mph (64.37 km/h) | 02h 02m |
| 50 mph (80.47 km/h) | 01h 38m |
| 60 mph (96.56 km/h) | 01h 21m |
| 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 | $12.41 | $24.82 |
| Mid-grade | $4.88 | $14.11 | $28.23 |
| Premium | $5.34 | $15.42 | $30.85 |
| Diesel | $6.35 | $18.36 | $36.71 |
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