How far is Trenton, NJ from Washington, NJ?
The driving distance from Trenton, NJ to Washington, NJ is about 45 miles (72.5 km), with a travel time of about 01h 09m by car.
- The straight-line flight distance is about 39.4 miles (63.4 km).
- For a round trip, plan for roughly 02h 19m 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 09m.
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.
Driving Route Map
The map below follows the saved road route between Trenton and Washington.
Turn-by-Turn Driving Directions
Step-by-step road directions between Trenton and Washington.
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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
20.8 mi · 29 min · NJ 31
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11
Turn left onto East Washington Avenue
1245 ft · 21 sec · East Washington Avenue
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12
Arrive at your destination
0 m · 1 sec · East Washington Avenue
Car Route Details
A richer read on the saved driving route between Trenton and Washington.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
NJ 31
Exit the rotary onto NJ 31
20.8 mi · 00h 29m
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 Sunny near Washington.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Trenton to Washington?
The road trip is about 45 miles (72.5 km) and usually takes 01h 09m 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 22.5 miles from Trenton and 22.5 miles from Washington.
How much longer is the road route than the straight-line distance?
The direct path is about 39.4 miles (63.4 km), while the road route adds roughly 5.6 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 4:10 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.50 one way or $12.99 round trip. Estimated CO2 is about 14.1 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Trenton and Sunny near Washington.
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 Washington. Straight-line distance: 39.41 mi (63.43 km).
#1 Trenton
The capital of New Jersey.
| Population | 82,957 |
| Coordinates | 40.2170500, -74.7429400 |
| Altitude | 17 |
| Country | United States |
#2 Washington
Borough in Warren County, New Jersey, United States
| Population | 6,498 |
| Coordinates | 40.7584300, -74.9793400 |
| Altitude | 139 |
| Country | United States |
End: Washington (-74.97934, 40.75843)
Estimated Travel Time
Distance: 72 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 30m |
| 40 mph (64.37 km/h) | 01h 07m |
| 50 mph (80.47 km/h) | 00h 54m |
| 60 mph (96.56 km/h) | 00h 45m |
| 70 mph (112.65 km/h) | 00h 38m |
| 80 mph (129 km/h) | 00h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $6.50 | $12.99 |
| Mid-grade | $4.60 | $7.31 | $14.62 |
| Premium | $4.95 | $7.88 | $15.75 |
| Diesel | $5.98 | $9.51 | $19.02 |
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 · May 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.