How far is Portsmouth, NH from Nashua, NH?
The driving distance from Portsmouth, NH to Nashua, NH is about 62.1 miles (100 km), with a travel time of about 01h 04m by car.
- The straight-line flight distance is about 41.9 miles (67.4 km).
- For a round trip, plan for roughly 02h 08m 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 04m.
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 New Hampshire
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Clear
Driving Route Map
The map below follows the saved road route between Portsmouth and Nashua.
Turn-by-Turn Driving Directions
Step-by-step road directions between Portsmouth and Nashua.
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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
9 mi · 11 min
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7
Keep slight left to continue on Blue Star Turnpike
7.7 mi · 9 min · Blue Star Turnpike
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8
Keep slight right to continue on I 495 South: Worcester
16.3 mi · 19 min
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9
Take the exit slight right toward MA 213: Methuen, Salem New Hampshire, Manchester-Boston Regional Airport
1302 ft · 37 sec
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10
Continue on Loop Connector
3.3 mi · 4 min · Loop Connector
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11
Take the exit slight right toward I 93 North: Concord New Hampshire
1920 ft · 37 sec
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12
Merge slight right
1.7 mi · 2 min
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13
Continue straight
4.2 mi · 5 min
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14
Take the exit slight right toward NH 111: Windham, North Salem
1573 ft · 30 sec
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15
Keep slight left to continue on NH 111: Windham, North Salem
137 m · 13 sec
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16
Turn left onto Indian Rock Road
2 mi · 4 min · Indian Rock Road
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17
Continue on Haverhill Road
3.4 mi · 6 min · Haverhill Road
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18
Continue on Central Street
3.2 mi · 6 min · Central Street
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19
Turn right onto Burnham Road
1408 ft · 38 sec · Burnham Road
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20
Continue on Ferry Street
1.3 mi · 3 min · Ferry Street
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21
Continue on Bridge Street
3208 ft · 2 min · Bridge Street
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22
Continue on Canal Street
3176 ft · 2 min · Canal Street
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23
At the end of the road, turn right onto Main Street
147 m · 19 sec · Main Street
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24
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Portsmouth and Nashua.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 495 South
Keep slight right to continue on I 495 South: Worcester
16.3 mi · 00h 19m
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 Clear leaving Portsmouth and Sunny near Nashua.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Portsmouth to Nashua?
The road trip is about 62.1 miles (100 km) and usually takes 01h 04m 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?
Plaistow is a useful midpoint, sitting about 28.1 miles from Portsmouth and 34.1 miles from Nashua.
How much longer is the road route than the straight-line distance?
The direct path is about 41.9 miles (67.4 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 4:22 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $8.64 one way or $17.28 round trip. Estimated CO2 is about 19.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Clear around Portsmouth and Sunny near Nashua.
Stop Ideas Near Plaistow
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 Plaistow.
Haverhill station
Newburyport, Massachusetts
Exeter station
Nashua, NH
Flight Path Map
This map shows the direct air route between Portsmouth and Nashua. Straight-line distance: 41.88 mi (67.4 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 Nashua
The most populous city in Hillsborough County, New Hampshire.
| Population | 89,167 |
| Coordinates | 42.7653700, -71.4675700 |
| Altitude | 49 |
| Country | United States |
End: Main Street (-71.467542, 42.765332)
Estimated Travel Time
Distance: 100 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 04m |
| 40 mph (64.37 km/h) | 01h 33m |
| 50 mph (80.47 km/h) | 01h 14m |
| 60 mph (96.56 km/h) | 01h 02m |
| 70 mph (112.65 km/h) | 00h 53m |
| 80 mph (129 km/h) | 00h 46m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $8.64 | $17.28 |
| Mid-grade | $4.46 | $9.76 | $19.52 |
| Premium | $4.86 | $10.64 | $21.28 |
| Diesel | $6.00 | $13.13 | $26.27 |
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 · May 12, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.