How far is Troy, NH from Londonderry, NH?
The driving distance from Troy, NH to Londonderry, NH is about 58.8 miles (94.6 km), with a travel time of about 01h 40m by car.
- The straight-line flight distance is about 41 miles (66 km).
- For a round trip, plan for roughly 03h 20m 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 40m.
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 New Hampshire
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Troy and Londonderry.
Turn-by-Turn Driving Directions
Step-by-step road directions between Troy and Londonderry.
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1
Start on South Main Street
25 m · 3 sec · South Main Street
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2
Turn right onto Monadnock Street
2.6 mi · 6 min · Monadnock Street
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3
Continue on Troy Road
107 m · 14 sec · Troy Road
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4
Turn right onto Mountain Road
4.4 mi · 8 min · Mountain Road
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5
Continue on Main Street
2.1 mi · 5 min · Main Street
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6
Turn left onto Peterborough Street
2.8 mi · 5 min · Peterborough Street
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7
Continue on Jaffrey Road
3.1 mi · 5 min · Jaffrey Road
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8
Continue on Grove Street
1086 ft · 31 sec · Grove Street
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9
Turn right onto Wilton Road
4 mi · 7 min · Wilton Road
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10
Continue on Gibbons Highway
9.3 mi · 15 min · Gibbons Highway
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11
Continue on Elm Street
1.3 mi · 3 min · Elm Street
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12
Turn right onto State Route 101
11.3 mi · 16 min · State Route 101
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13
Continue straight
6.3 mi · 10 min
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14
Take the exit slight right
3.4 mi · 5 min
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15
Take the exit slight right toward NH 28
1725 ft · 42 sec
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16
Keep slight right
605 ft · 17 sec
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17
Turn right onto South Willow Street
2.1 mi · 3 min · South Willow Street
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18
Continue on Rockingham Road
1.7 mi · 3 min · Rockingham Road
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19
Turn right onto Mammoth Road
3.6 mi · 7 min · Mammoth Road
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20
Arrive at your destination
0 m · 1 sec · Mammoth Road
Car Route Details
A richer read on the saved driving route between Troy and Londonderry.
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.
State Route 101
Turn right onto State Route 101
11.3 mi · 00h 16m
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.
Sunny leaving Troy and Clear near Londonderry.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Troy to Londonderry?
The road trip is about 58.8 miles (94.6 km) and usually takes 01h 40m 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?
Wilton is a useful midpoint, sitting about 29.3 miles from Troy and 29.5 miles from Londonderry.
How much longer is the road route than the straight-line distance?
The direct path is about 41 miles (66 km), while the road route adds roughly 17.8 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 3:10 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $8.85 one way or $17.70 round trip. Estimated CO2 is about 18.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Troy and Clear near Londonderry.
Stop Ideas Near Wilton
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 Wilton.
Nashua, NH
Manchester, New Hampshire
Concord, New Hampshire
Haverhill station
Flight Path Map
This map shows the direct air route between Troy and Londonderry. Straight-line distance: 40.99 mi (65.97 km).
#1 Troy
Town in Cheshire County, New Hampshire, United States
| Population | 2,117 |
| Coordinates | 42.8239700, -72.1811900 |
| Altitude | 309 |
| Country | United States |
#2 Londonderry
Town in Rockingham County, New Hampshire, United States of America
| Population | 26,646 |
| Coordinates | 42.8650900, -71.3739500 |
| Altitude | 128 |
| Country | United States |
End: Londonderry (-71.37395, 42.86509)
Estimated Travel Time
Distance: 95 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 57m |
| 40 mph (64.37 km/h) | 01h 28m |
| 50 mph (80.47 km/h) | 01h 10m |
| 60 mph (96.56 km/h) | 00h 58m |
| 70 mph (112.65 km/h) | 00h 50m |
| 80 mph (129 km/h) | 00h 44m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.28 | $8.85 | $17.70 |
| Mid-grade | $4.84 | $10.01 | $20.02 |
| Premium | $5.29 | $10.95 | $21.90 |
| Diesel | $6.10 | $12.63 | $25.26 |
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 · Sep 15, 2026