How far is Princeton Junction, NJ from Trenton, NJ?
The driving distance from Princeton Junction, NJ to Trenton, NJ is about 12.7 miles (20.4 km), with a travel time of about 00h 19m by car.
- The straight-line flight distance is about 9.5 miles (15.3 km).
- For a round trip, plan for roughly 00h 39m 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 19m.
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.
Township in Mercer County, New Jersey
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 Princeton Junction and Trenton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Princeton Junction and Trenton.
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1
Start on Cranbury Road
18 m · 6 sec · Cranbury Road
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2
Turn right onto Princeton-Hightstown Road
1521 ft · 33 sec · Princeton-Hightstown Road
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3
Turn right onto Washington Road
75 m · 5 sec · Washington Road
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4
Continue on Washington Road
1 mi · 2 min · Washington Road
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5
Enter the roundabout and take exit 4 toward Washington Road
106 m · 10 sec · Brunswick Pike
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6
Exit the rotary onto Brunswick Pike
4.3 mi · 6 min · Brunswick Pike
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7
Take the exit slight right
975 ft · 15 sec
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8
Keep slight left
2012 ft · 31 sec
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9
Merge slight left onto Brunswick Pike
1.4 km · 1 min · Brunswick Pike
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10
Continue on Trenton Freeway
3 mi · 4 min · Trenton Freeway
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11
Take the exit slight right toward Olden Avenue, New York Avenue
145 m · 14 sec
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12
At the end of the road, turn left onto New York Avenue
147 m · 14 sec · New York Avenue
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13
Turn left onto North Olden Avenue
1.4 mi · 3 min · North Olden Avenue
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14
Turn right onto Hamilton Avenue
2992 ft · 1 min · Hamilton Avenue
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15
Turn right onto Chambers Street
2 m · 1 sec · Chambers Street
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16
Arrive at your destination
0 m · 1 sec · Chambers Street
Car Route Details
A richer read on the saved driving route between Princeton Junction and Trenton.
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.
Brunswick Pike
Exit the rotary onto Brunswick Pike
4.34 mi · 00h 06m
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.
Chance Rain Showers leaving Princeton Junction and Chance Rain Showers near Trenton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Princeton Junction to Trenton?
The road trip is about 12.7 miles (20.4 km) and usually takes 00h 19m 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?
Lawrence is a useful midpoint, sitting about 6.2 miles from Princeton Junction and 6.5 miles from Trenton.
How much longer is the road route than the straight-line distance?
The direct path is about 9.5 miles (15.3 km), while the road route adds roughly 3.2 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 7:50 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $1.84 one way or $3.68 round trip. Estimated CO2 is about 4 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Princeton Junction and Chance Rain Showers near Trenton.
Stop Ideas Near Lawrence
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Old City Hall
Trenton City Hall
Trenton Health & Human Services
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Lawrence.
Princeton Junction station
Trenton Transit Center
New Brunswick station
Cornwells Heights
Flight Path Map
This map shows the direct air route between Princeton Junction and Trenton. Straight-line distance: 9.49 mi (15.28 km).
#1 Princeton Junction
Town
| Population | 2,465 |
| Coordinates | 40.3173300, -74.6198800 |
| Altitude | 23 |
| Country | United States |
#2 Trenton
The capital of New Jersey.
| Population | 82,957 |
| Coordinates | 40.2170500, -74.7429400 |
| Altitude | 17 |
| Country | United States |
End: Chambers Street (-74.742936, 40.217034)
Estimated Travel Time
Distance: 20 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 25m |
| 40 mph (64.37 km/h) | 00h 19m |
| 50 mph (80.47 km/h) | 00h 15m |
| 60 mph (96.56 km/h) | 00h 12m |
| 70 mph (112.65 km/h) | 00h 10m |
| 80 mph (129 km/h) | 00h 09m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $1.84 | $3.68 |
| Mid-grade | $4.60 | $2.07 | $4.14 |
| Premium | $4.95 | $2.23 | $4.46 |
| Diesel | $5.98 | $2.69 | $5.38 |
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.