How far is Grantham, NH from Dover, NH?
The driving distance from Grantham, NH to Dover, NH is about 85.2 miles (137.1 km), with a travel time of about 01h 37m by car.
- The straight-line flight distance is about 66.6 miles (107.2 km).
- For a round trip, plan for roughly 03h 15m 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 37m.
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.
Human settlement in United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
A saved road route is not available yet, so the map falls back to a straight-line overview.
Turn-by-Turn Driving Directions
Step-by-step road directions between Grantham and Dover.
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 Grantham and Mostly Sunny near Dover.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Grantham to Dover?
The road trip is about 85.2 miles (137.1 km) and usually takes 01h 37m 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?
Canterbury is a useful midpoint, sitting about 33.3 miles from Grantham and 51.9 miles from Dover.
How much longer is the road route than the straight-line distance?
The direct path is about 66.6 miles (107.2 km), while the road route adds roughly 18.6 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 3:14 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.87 one way or $23.75 round trip. Estimated CO2 is about 26.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Grantham and Mostly Sunny near Dover.
Stop Ideas Near Canterbury
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 Canterbury.
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Flight Path Map
This map shows the direct air route between Grantham and Dover. Straight-line distance: 66.63 mi (107.23 km).
#1 Grantham
Town in Sullivan County, New Hampshire, United States
| Population | 2,955 |
| Coordinates | 43.4895200, -72.1375900 |
| Altitude | 288 |
| Country | United States |
#2 Dover
County seat city in Strafford County, New Hampshire, United States
| Population | 32,443 |
| Coordinates | 43.1978600, -70.8736700 |
| Altitude | 19 |
| Country | United States |
End: (-70.873668, 43.197876)
Estimated Travel Time
Distance: 137 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 50m |
| 40 mph (64.37 km/h) | 02h 07m |
| 50 mph (80.47 km/h) | 01h 42m |
| 60 mph (96.56 km/h) | 01h 25m |
| 70 mph (112.65 km/h) | 01h 13m |
| 80 mph (129 km/h) | 01h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $11.87 | $23.75 |
| Mid-grade | $4.46 | $13.42 | $26.83 |
| Premium | $4.86 | $14.62 | $29.25 |
| Diesel | $6.00 | $18.05 | $36.10 |
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 · Apr 11, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.