How far is Trenton, NJ from Port Monmouth, NJ?
The driving distance from Trenton, NJ to Port Monmouth, NJ is about 42.4 miles (68.2 km), with a travel time of about 01h 12m by car.
- The straight-line flight distance is about 37 miles (59.6 km).
- For a round trip, plan for roughly 02h 24m 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 Middlesex County, New Jersey
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Trenton and Port Monmouth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Trenton and Port Monmouth.
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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
2.7 mi · 5 min · Hamilton Avenue
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3
Turn straight onto Nottingham Way
2690 ft · 1 min · Nottingham Way
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4
Continue on Edinburg Road
2 mi · 4 min · Edinburg Road
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5
Continue on Old Trenton Road
8.5 mi · 15 min · Old Trenton Road
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6
At the end of the road, turn left
1.2 mi · 2 min
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7
Turn slight right onto South River Road
1.9 mi · 3 min · South River Road
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8
Continue on Cranbury-South River Road
2797 ft · 60 sec · Cranbury-South River Road
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9
Turn right onto Forsgate Drive
2.6 mi · 4 min · Forsgate Drive
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10
Turn right onto Buckelew Avenue
96 m · 10 sec · Buckelew Avenue
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11
Turn left onto Pergola Avenue
1.6 mi · 2 min · Pergola Avenue
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12
Continue on Matchaponix Avenue
1.9 mi · 3 min · Matchaponix Avenue
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13
Continue on Texas Road
3 mi · 5 min · Texas Road
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14
Turn right onto Marlboro Road
1.9 mi · 3 min · Marlboro Road
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15
Turn left onto Tennent Road
3.6 mi · 6 min · Tennent Road
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16
Continue straight
1.2 mi · 2 min
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17
Continue on Main Street
1.5 mi · 2 min · Main Street
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18
Continue on Lower Main Street
1.2 km · 1 min · Lower Main Street
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19
Continue on Maple Place
1044 ft · 20 sec · Maple Place
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20
Take the ramp straight
60 m · 5 sec
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21
Merge slight left
2260 ft · 39 sec
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22
Take the exit slight left toward NJ 36: Keansburg, Atlantic Highlands
5.6 mi · 9 min
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23
Take the exit right toward Port Monmouth
148 m · 15 sec
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24
Turn right onto Main Street
2366 ft · 1 min · Main Street
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25
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Trenton and Port Monmouth.
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.
Old Trenton Road
Continue on Old Trenton Road
8.52 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.
Sunny leaving Trenton and Mostly Sunny near Port Monmouth.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Trenton to Port Monmouth?
The road trip is about 42.4 miles (68.2 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?
Jamesburg is a useful midpoint, sitting about 21.2 miles from Trenton and 21.3 miles from Port Monmouth.
How much longer is the road route than the straight-line distance?
The direct path is about 37 miles (59.6 km), while the road route adds roughly 5.4 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 4:06 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.13 one way or $12.26 round trip. Estimated CO2 is about 13.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Trenton and Mostly Sunny near Port Monmouth.
Stop Ideas Near Jamesburg
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 Jamesburg.
Princeton Junction station
New Brunswick station
Metropark station
Trenton Transit Center
Flight Path Map
This map shows the direct air route between Trenton and Port Monmouth. Straight-line distance: 37 mi (59.55 km).
#1 Trenton
The capital of New Jersey.
| Population | 82,957 |
| Coordinates | 40.2170500, -74.7429400 |
| Altitude | 17 |
| Country | United States |
#2 Port Monmouth
Census designated place
| Population | 3,818 |
| Coordinates | 40.4301100, -74.0984700 |
| Altitude | 3 |
| Country | United States |
End: Port Monmouth (-74.09847, 40.43011)
Estimated Travel Time
Distance: 68 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 24m |
| 40 mph (64.37 km/h) | 01h 03m |
| 50 mph (80.47 km/h) | 00h 50m |
| 60 mph (96.56 km/h) | 00h 42m |
| 70 mph (112.65 km/h) | 00h 36m |
| 80 mph (129 km/h) | 00h 31m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $6.13 | $12.26 |
| Mid-grade | $4.60 | $6.90 | $13.80 |
| Premium | $4.95 | $7.43 | $14.86 |
| Diesel | $5.98 | $8.97 | $17.94 |
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.