How far is Londonderry, NH from Amherst, NH?
The driving distance from Londonderry, NH to Amherst, NH is about 21.4 miles (34.5 km), with a travel time of about 00h 36m by car.
- The straight-line flight distance is about 12.7 miles (20.5 km).
- For a round trip, plan for roughly 01h 12m 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 36m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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 New Hampshire, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Londonderry and Amherst.
Turn-by-Turn Driving Directions
Step-by-step road directions between Londonderry and Amherst.
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1
Start on Mammoth Road
3.6 mi · 7 min · Mammoth Road
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2
Turn left onto Rockingham Road
1.7 mi · 3 min · Rockingham Road
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3
Continue on South Willow Street
2.1 mi · 4 min · South Willow Street
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4
Take the ramp left toward NH 101 West, I 293 North: Concord, Bedford
2011 ft · 49 sec
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5
Merge slight left
1.2 mi · 2 min
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6
Keep slight left to continue on NH 101 West: Bedford, Nashua
2.2 mi · 3 min
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7
Turn left
2229 ft · 49 sec
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8
Continue straight
8.8 mi · 14 min
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9
Take the exit slight right toward NH 122: Amherst
910 ft · 25 sec
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10
Keep slight right to continue on NH 122 South
61 m · 7 sec
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11
Turn slight right onto Amherst Street
1.1 km · 2 min · Amherst Street
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12
Arrive at your destination
0 m · 1 sec · Amherst Street
Car Route Details
A richer read on the saved driving route between Londonderry and Amherst.
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.
NH 101 West
Continue straight
8.84 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.
Mostly Cloudy leaving Londonderry and Mostly Cloudy near Amherst.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Londonderry to Amherst?
The road trip is about 21.4 miles (34.5 km) and usually takes 00h 36m 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?
Bedford is a useful midpoint, sitting about 10.7 miles from Londonderry and 10.7 miles from Amherst.
How much longer is the road route than the straight-line distance?
The direct path is about 12.7 miles (20.5 km), while the road route adds roughly 8.7 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 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 $3.00 one way or $6.00 round trip. Estimated CO2 is about 6.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Londonderry and Mostly Cloudy near Amherst.
Stop Ideas Near Bedford
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 Bedford.
Manchester, New Hampshire
Nashua, NH
Concord, New Hampshire
Haverhill station
Flight Path Map
This map shows the direct air route between Londonderry and Amherst. Straight-line distance: 12.73 mi (20.49 km).
#1 Londonderry
Town in Rockingham County, New Hampshire, United States of America
| Population | 26,646 |
| Coordinates | 42.8650900, -71.3739500 |
| Altitude | 128 |
| Country | United States |
#2 Amherst
Town in Hillsborough County, New Hampshire, United States
| Population | 11,418 |
| Coordinates | 42.8614700, -71.6253500 |
| Altitude | 79 |
| Country | United States |
End: Amherst (-71.62535, 42.86147)
Estimated Travel Time
Distance: 34 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 42m |
| 40 mph (64.37 km/h) | 00h 32m |
| 50 mph (80.47 km/h) | 00h 25m |
| 60 mph (96.56 km/h) | 00h 21m |
| 70 mph (112.65 km/h) | 00h 18m |
| 80 mph (129 km/h) | 00h 16m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $3.00 | $6.00 |
| Mid-grade | $4.46 | $3.39 | $6.77 |
| Premium | $4.86 | $3.69 | $7.38 |
| Diesel | $6.00 | $4.56 | $9.12 |
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 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.