How far is Dover, NH from Seabrook, NH?
The driving distance from Dover, NH to Seabrook, NH is about 24.9 miles (40 km), with a travel time of about 00h 35m by car.
- The straight-line flight distance is about 20.9 miles (33.7 km).
- For a round trip, plan for roughly 01h 11m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 35m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Rockingham County, New Hampshire, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers then Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Dover and Seabrook.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dover and Seabrook.
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1
Start on the route
7 m · 8 sec
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2
Turn sharp left onto Main Street
98 m · 19 sec · Main Street
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3
Turn sharp left onto Central Avenue
1876 ft · 57 sec · Central Avenue
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4
Turn right onto Hale Street
105 m · 18 sec · Hale Street
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5
Turn left onto Locust Street
1.2 km · 2 min · Locust Street
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6
Turn right onto Central Avenue
852 ft · 28 sec · Central Avenue
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7
Take the ramp right
1064 ft · 36 sec
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8
Merge slight left onto Spaulding Turnpike
10 mi · 14 min · Spaulding Turnpike
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9
Merge slight left onto Blue Star Turnpike
7.3 mi · 9 min · Blue Star Turnpike
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10
Keep slight left to continue on Blue Star Turnpike
5 mi · 6 min · Blue Star Turnpike
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11
Take the exit slight right toward NH 107: Seabrook, Kingston
1656 ft · 55 sec
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12
Turn left
2623 ft · 55 sec
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13
Turn left onto Lafayette Road
617 ft · 22 sec · Lafayette Road
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14
Turn right
99 m · 31 sec
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15
Turn sharp left
76 m · 18 sec
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16
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Dover and Seabrook.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Spaulding Turnpike
Merge slight left onto Spaulding Turnpike
9.97 mi · 00h 14m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Slight Chance Rain Showers then Mostly Sunny leaving Dover and Mostly Sunny near Seabrook.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dover to Seabrook?
The road trip is about 24.9 miles (40 km) and usually takes 00h 35m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Greenland is a useful midpoint, sitting about 12.4 miles from Dover and 12.4 miles from Seabrook.
How much longer is the road route than the straight-line distance?
The direct path is about 20.9 miles (33.7 km), while the road route adds roughly 4 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:18 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.47 one way or $6.94 round trip. Estimated CO2 is about 7.8 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers then Mostly Sunny around Dover and Mostly Sunny near Seabrook.
Stop Ideas Near Greenland
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Old City Hall
Dover City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Greenland.
Portsmouth, New Hampshire
Exeter station
Durham–UNH station
Dover Transportation Center
Flight Path Map
This map shows the direct air route between Dover and Seabrook. Straight-line distance: 20.94 mi (33.7 km).
#1 Dover
County seat city in Strafford County, New Hampshire, United States
| Population | 32,443 |
| Coordinates | 43.1978600, -70.8736700 |
| Altitude | 19 |
| Country | United States |
#2 Seabrook
Town in New Hampshire, United States
| Population | 8,844 |
| Coordinates | 42.8948100, -70.8711600 |
| Altitude | 15 |
| Country | United States |
End: Seabrook (-70.87116, 42.89481)
Estimated Travel Time
Distance: 40 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 49m |
| 40 mph (64.37 km/h) | 00h 37m |
| 50 mph (80.47 km/h) | 00h 29m |
| 60 mph (96.56 km/h) | 00h 24m |
| 70 mph (112.65 km/h) | 00h 21m |
| 80 mph (129 km/h) | 00h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $3.47 | $6.94 |
| Mid-grade | $4.46 | $3.92 | $7.84 |
| Premium | $4.86 | $4.28 | $8.55 |
| Diesel | $6.00 | $5.28 | $10.55 |
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 01, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.