How far is Trenton, NJ from Flemington, NJ?
The driving distance from Trenton, NJ to Flemington, NJ is about 25 miles (40.2 km), with a travel time of about 00h 42m by car.
- The straight-line flight distance is about 21.3 miles (34.3 km).
- For a round trip, plan for roughly 01h 25m 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 42m.
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.
Sunny
Driving Route Map
The map below follows the saved road route between Trenton and Flemington.
Turn-by-Turn Driving Directions
Step-by-step road directions between Trenton and Flemington.
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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 3 toward Packer Avenue
996 ft · 14 sec · Packer Avenue
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10
Exit the rotary onto Packer Avenue
1154 ft · 24 sec · Packer Avenue
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11
Enter the roundabout and take exit 1 toward Main Street
14 m · 1 sec · Main Street
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12
Exit the roundabout onto Main Street
1.2 km · 2 min · Main Street
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13
Turn left
15 m · 4 sec
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14
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Trenton and Flemington.
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.
Pennington Road
Exit the rotary
10 mi · 00h 16m
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.
Sunny leaving Trenton and Sunny near Flemington.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Trenton to Flemington?
The road trip is about 25 miles (40.2 km) and usually takes 00h 42m 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?
Hopewell is a useful midpoint, sitting about 12.5 miles from Trenton and 12.5 miles from Flemington.
How much longer is the road route than the straight-line distance?
The direct path is about 21.3 miles (34.3 km), while the road route adds roughly 3.7 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:04 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.60 one way or $7.19 round trip. Estimated CO2 is about 7.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Trenton and Sunny near Flemington.
Stop Ideas Near Hopewell
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 Hopewell.
Princeton Junction station
Trenton Transit Center
New Brunswick station
Cornwells Heights
Flight Path Map
This map shows the direct air route between Trenton and Flemington. Straight-line distance: 21.3 mi (34.28 km).
#1 Trenton
The capital of New Jersey.
| Population | 82,957 |
| Coordinates | 40.2170500, -74.7429400 |
| Altitude | 17 |
| Country | United States |
#2 Flemington
Borough in Hunterdon County, New Jersey, United States
| Population | 4,552 |
| Coordinates | 40.5123300, -74.8593300 |
| Altitude | 53 |
| Country | United States |
End: Flemington (-74.85933, 40.51233)
Estimated Travel Time
Distance: 40 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 49m |
| 40 mph (64.37 km/h) | 00h 37m |
| 50 mph (80.47 km/h) | 00h 29m |
| 60 mph (96.56 km/h) | 00h 24m |
| 70 mph (112.65 km/h) | 00h 21m |
| 80 mph (129 km/h) | 00h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $3.60 | $7.19 |
| Mid-grade | $4.60 | $4.05 | $8.09 |
| Premium | $4.95 | $4.36 | $8.72 |
| Diesel | $5.98 | $5.26 | $10.52 |
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.