How far is Trenton, NJ from Alpha, NJ?
The driving distance from Trenton, NJ to Alpha, NJ is about 49.7 miles (80 km), with a travel time of about 01h 12m by car.
- The straight-line flight distance is about 38 miles (61.1 km).
- For a round trip, plan for roughly 02h 25m 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 12m.
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.
Borough in Hunterdon County, New Jersey, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Trenton and Alpha.
Turn-by-Turn Driving Directions
Step-by-step road directions between Trenton and Alpha.
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1
Start on Chambers Street
2 m · 6 sec · Chambers Street
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2
Turn left onto Hamilton Avenue
2992 ft · 1 min · Hamilton Avenue
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3
Turn left onto South Olden Avenue
3.2 mi · 6 min · South Olden Avenue
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4
Turn right onto Pennington Road
4.2 mi · 8 min · Pennington Road
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5
Enter the roundabout and take exit 3 toward Pennington Road
643 ft · 12 sec
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6
Exit the rotary
10 mi · 16 min
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7
Take the exit slight right toward NJ 31 North, US 202 North: Flemington
5.6 mi · 8 min
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8
Keep slight left
130 m · 6 sec
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9
Enter the roundabout and take exit 2 toward NJ 31
566 ft · 7 sec · NJ 31
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10
Exit the rotary onto NJ 31
10 mi · 12 min · NJ 31
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11
Take the exit slight left toward US 22 West, I 78 West: Phillipsburg
1798 ft · 44 sec
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12
Merge slight left onto Phillipsburg-Newark Expressway
13.3 mi · 15 min · Phillipsburg-Newark Expressway
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13
Take the exit slight right toward US 22, NJ 122: Phillipsburg, Alpha
2600 ft · 1 min
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14
Take the exit slight right
595 ft · 18 sec
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15
Continue on New Brunswick Avenue
1.1 mi · 2 min · New Brunswick Avenue
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16
Turn left onto 3rd Avenue
2258 ft · 57 sec · 3rd Avenue
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17
Turn left
20 m · 7 sec
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18
Turn right
22 m · 5 sec
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19
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Trenton and Alpha.
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.
Phillipsburg-Newark Expressway
Merge slight left onto Phillipsburg-Newark Expressway
13.3 mi · 00h 15m
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.
Chance Rain Showers leaving Trenton and Chance Rain Showers near Alpha.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Trenton to Alpha?
The road trip is about 49.7 miles (80 km) and usually takes 01h 12m 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?
Flemington is a useful midpoint, sitting about 24.9 miles from Trenton and 24.9 miles from Alpha.
How much longer is the road route than the straight-line distance?
The direct path is about 38 miles (61.1 km), while the road route adds roughly 11.7 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 4:04 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.15 one way or $14.30 round trip. Estimated CO2 is about 15.6 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Trenton and Chance Rain Showers near Alpha.
Stop Ideas Near Flemington
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 Flemington.
Princeton Junction station
Trenton Transit Center
New Brunswick station
Metropark station
Flight Path Map
This map shows the direct air route between Trenton and Alpha. Straight-line distance: 37.97 mi (61.11 km).
#1 Trenton
The capital of New Jersey.
| Population | 82,957 |
| Coordinates | 40.2170500, -74.7429400 |
| Altitude | 17 |
| Country | United States |
#2 Alpha
Borough in Warren County, New Jersey
| Population | 2,263 |
| Coordinates | 40.6670400, -75.1574000 |
| Altitude | 97 |
| Country | United States |
End: Alpha (-75.1574, 40.66704)
Estimated Travel Time
Distance: 80 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 39m |
| 40 mph (64.37 km/h) | 01h 14m |
| 50 mph (80.47 km/h) | 00h 59m |
| 60 mph (96.56 km/h) | 00h 49m |
| 70 mph (112.65 km/h) | 00h 42m |
| 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 | $4.09 | $7.15 | $14.30 |
| Mid-grade | $4.60 | $8.05 | $16.10 |
| Premium | $4.95 | $8.67 | $17.34 |
| Diesel | $5.98 | $10.47 | $20.93 |
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 Jersey · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.