How far is Lebanon, NH from Portsmouth, NH?
The driving distance from Lebanon, NH to Portsmouth, NH is about 113.4 miles (182.5 km), with a travel time of about 01h 47m by car.
- The straight-line flight distance is about 84.6 miles (136.2 km).
- For a round trip, plan for roughly 03h 34m 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 47m.
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 Merrimack County, New Hampshire, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Lebanon and Portsmouth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lebanon and Portsmouth.
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1
Start on South Park Street
90 m · 13 sec · South Park Street
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2
At the end of the road, turn left onto East Park Street
41 m · 4 sec · East Park Street
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3
Continue on East Park Street
608 ft · 18 sec · East Park Street
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4
Turn straight
66 m · 7 sec
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5
Turn right onto West Park Street
19 m · 2 sec · West Park Street
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6
Turn right onto Hanover Street
90 m · 11 sec · Hanover Street
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7
Continue on Hanover Street
1953 ft · 55 sec · Hanover Street
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8
Continue on Hanover Street
1559 ft · 36 sec · Hanover Street
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9
Take the ramp right toward I 89 South, NH 10 South
1314 ft · 32 sec
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10
Merge slight left
55.9 mi · 1 hr 5 min
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11
Take the exit slight right toward I 93 South Toll: Manchester, Boston
1 km · 1 min
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12
Merge slight right onto Everett Turnpike
5.7 mi · 7 min · Everett Turnpike
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13
Keep slight left to continue on Everett Turnpike
2 mi · 2 min · Everett Turnpike
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14
Keep slight right to continue on I 93 South: Salem, Boston
5.7 mi · 7 min
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15
Take the exit slight left toward NH 101 East: Seacoast, Portsmouth
1.2 km · 1 min
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16
Merge slight right
30.5 mi · 36 min
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17
Take the exit slight right toward I 95: Portsmouth, Boston
1.3 km · 2 min
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18
Keep slight left to continue on I 95 North: Portsmouth, Maine, Pease International Tradeport
2454 ft · 1 min
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19
Continue straight
1816 ft · 44 sec
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20
Merge slight left onto Blue Star Turnpike
7 mi · 8 min · Blue Star Turnpike
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21
Keep slight right to continue on Blue Star Turnpike
1.9 mi · 3 min · Blue Star Turnpike
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22
Take the exit slight right
1313 ft · 35 sec
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23
Turn right onto Market Street
1 mi · 3 min · Market Street
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24
At the end of the road, turn right onto Congress Street
16 m · 1 sec · Congress Street
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25
Arrive at your destination
0 m · 1 sec · Congress Street
Car Route Details
A richer read on the saved driving route between Lebanon and Portsmouth.
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 89 South
Merge slight left
55.9 mi · 01h 05m
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.
Rain Showers leaving Lebanon and Slight Chance Rain Showers near Portsmouth.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lebanon to Portsmouth?
The road trip is about 113.4 miles (182.5 km) and usually takes 01h 47m 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?
Bow is a useful midpoint, sitting about 57 miles from Lebanon and 56.4 miles from Portsmouth.
How much longer is the road route than the straight-line distance?
The direct path is about 84.6 miles (136.2 km), while the road route adds roughly 28.8 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 2:56 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.78 one way or $31.56 round trip. Estimated CO2 is about 35.5 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Lebanon and Slight Chance Rain Showers near Portsmouth.
Stop Ideas Near Bow
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 Bow.
Concord, New Hampshire
Manchester, New Hampshire
Tilton, New Hampshire
Nashua, NH
Flight Path Map
This map shows the direct air route between Lebanon and Portsmouth. Straight-line distance: 84.61 mi (136.16 km).
#1 Lebanon
City in Grafton County, New Hampshire, United States
| Population | 13,808 |
| Coordinates | 43.6422900, -72.2517600 |
| Altitude | 178 |
| 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: 183 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 46m |
| 40 mph (64.37 km/h) | 02h 50m |
| 50 mph (80.47 km/h) | 02h 16m |
| 60 mph (96.56 km/h) | 01h 53m |
| 70 mph (112.65 km/h) | 01h 37m |
| 80 mph (129 km/h) | 01h 24m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $15.78 | $31.56 |
| Mid-grade | $4.46 | $17.83 | $35.66 |
| Premium | $4.86 | $19.43 | $38.86 |
| Diesel | $6.00 | $23.99 | $47.98 |
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 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.