How far is Portsmouth, NH from Gilmanton, NH?
The driving distance from Portsmouth, NH to Gilmanton, NH is about 50.5 miles (81.2 km), with a travel time of about 01h 19m by car.
- The straight-line flight distance is about 40.8 miles (65.7 km).
- For a round trip, plan for roughly 02h 39m 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 19m.
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.
City in Strafford County, New Hampshire, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Patchy Fog
Patchy Fog then Sunny
Driving Route Map
The map below follows the saved road route between Portsmouth and Gilmanton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Portsmouth and Gilmanton.
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1
Start on Congress Street
954 ft · 34 sec · Congress Street
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2
Turn right onto Maplewood Avenue
1.1 km · 2 min · Maplewood Avenue
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3
Turn left onto Cutts Street
139 m · 16 sec · Cutts Street
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4
Turn slight right
1 km · 1 min
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5
Exit the rotary onto NH 16 North: Concord, Rochester
2261 ft · 51 sec
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6
Take the exit straight
961 ft · 15 sec
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7
Keep slight left to continue on Spaulding Turnpike North, NH 16 North, US 4 West
1364 ft · 21 sec
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8
Merge slight left onto Spaulding Turnpike
20 mi · 26 min · Spaulding Turnpike
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9
Take the exit slight right toward NH 11 West: Farmington, Alton
1684 ft · 59 sec
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10
Turn left onto Farmington Road
2.3 mi · 4 min · Farmington Road
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11
Continue on NH Route 11
6.1 mi · 9 min · NH Route 11
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12
Continue on Henry Wilson Highway
6.2 mi · 9 min · Henry Wilson Highway
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13
Enter the roundabout and take exit 3 toward the route
797 ft · 23 sec
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14
Exit the roundabout
3023 ft · 2 min
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15
Turn left onto Factory Street
2617 ft · 1 min · Factory Street
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16
Continue on Frank C. Gilman Highway
3.7 mi · 7 min · Frank C. Gilman Highway
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17
Continue on New Hampshire Route 140
8 mi · 14 min · New Hampshire Route 140
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18
Turn right onto Province Road
22 m · 2 sec · Province Road
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19
Turn slight left onto Currier Hill Road
76 m · 11 sec · Currier Hill Road
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20
Arrive at your destination
0 m · 1 sec · Currier Hill Road
Car Route Details
A richer read on the saved driving route between Portsmouth and Gilmanton.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Spaulding Turnpike
Merge slight left onto Spaulding Turnpike
20 mi · 00h 26m
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.
Patchy Fog leaving Portsmouth and Patchy Fog then Sunny near Gilmanton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Portsmouth to Gilmanton?
The road trip is about 50.5 miles (81.2 km) and usually takes 01h 19m 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?
Rochester is a useful midpoint, sitting about 25.2 miles from Portsmouth and 25.2 miles from Gilmanton.
How much longer is the road route than the straight-line distance?
The direct path is about 40.8 miles (65.7 km), while the road route adds roughly 9.7 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 3:50 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.02 one way or $14.04 round trip. Estimated CO2 is about 15.8 kg one way.
What should you check before leaving?
Before you leave, expect Patchy Fog around Portsmouth and Patchy Fog then Sunny near Gilmanton.
Stop Ideas Near Rochester
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 Rochester.
Dover Transportation Center
Durham–UNH station
Portsmouth, New Hampshire
Wells Regional Transportation Center
Flight Path Map
This map shows the direct air route between Portsmouth and Gilmanton. Straight-line distance: 40.84 mi (65.73 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 Gilmanton
Town in Belknap County, New Hampshire, United States
| Population | 3,797 |
| Coordinates | 43.4242500, -71.4145200 |
| Altitude | 303 |
| Country | United States |
End: Gilmanton (-71.41452, 43.42425)
Estimated Travel Time
Distance: 81 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 40m |
| 40 mph (64.37 km/h) | 01h 15m |
| 50 mph (80.47 km/h) | 01h 00m |
| 60 mph (96.56 km/h) | 00h 50m |
| 70 mph (112.65 km/h) | 00h 43m |
| 80 mph (129 km/h) | 00h 37m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $7.02 | $14.04 |
| Mid-grade | $4.46 | $7.93 | $15.87 |
| Premium | $4.86 | $8.65 | $17.29 |
| Diesel | $6.00 | $10.67 | $21.35 |
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 · Jun 25, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.