How far is Denville, NJ from Plainsboro, NJ?
The driving distance from Denville, NJ to Plainsboro, NJ is about 50.6 miles (81.5 km), with a travel time of about 01h 15m by car.
- The straight-line flight distance is about 39.1 miles (63 km).
- For a round trip, plan for roughly 02h 30m 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 15m.
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.
Township of 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 Denville and Plainsboro.
Turn-by-Turn Driving Directions
Step-by-step road directions between Denville and Plainsboro.
-
1
Start on Broadway Avenue
27 m · 4 sec · Broadway Avenue
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2
Turn right onto Center Street
79 m · 13 sec · Center Street
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3
Turn right onto Bloomfield Avenue
72 m · 9 sec · Bloomfield Avenue
-
4
Turn left onto East Main Street
656 ft · 24 sec · East Main Street
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5
Turn left onto I 80 East
1205 ft · 30 sec
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6
Merge slight left onto Christopher Columbus Highway
3.6 mi · 4 min · Christopher Columbus Highway
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7
Take the exit slight right toward I 287: Morristown, Mahwah
732 ft · 18 sec
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8
Keep slight right to continue on I 287 South: Morristown, Somerville
1168 ft · 29 sec
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9
Merge slight left
21 mi · 26 min
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10
Keep slight left
2.6 mi · 3 min
-
11
Take the exit slight left toward US 202 South, US 206 South: Somerville, Flemington
1 km · 43 sec
-
12
Merge slight left
1 mi · 2 min
-
13
Take the exit straight toward US 206 South, NJ 28: Somerville, Princeton
1277 ft · 37 sec
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14
Enter the roundabout and take exit 2 toward Somerville Circle
525 ft · 7 sec
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15
Exit the rotary
9.1 mi · 14 min
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16
Continue straight
4.3 mi · 7 min
-
17
Turn left onto Georgetown-Franklin Turnpike
571 ft · 11 sec · Georgetown-Franklin Turnpike
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18
Continue on Washington Street
1.6 km · 3 min · Washington Street
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19
Continue on Georgetown-Franklin Turnpike
651 ft · 15 sec · Georgetown-Franklin Turnpike
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20
Turn right onto Kingston-Rocky Hill Road
1.2 mi · 2 min · Kingston-Rocky Hill Road
-
21
Continue on Laurel Avenue
1.1 km · 2 min · Laurel Avenue
-
22
Continue on Heathcote Road
1669 ft · 59 sec · Heathcote Road
-
23
Continue on Ridge Road
1.2 mi · 3 min · Ridge Road
-
24
Turn right onto Schalks Crossing Road
2.3 mi · 4 min · Schalks Crossing Road
-
25
Turn right onto Plainsboro Road
1669 ft · 1 min · Plainsboro Road
-
26
Turn left onto Prospect Avenue
12 m · 2 sec · Prospect Avenue
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27
Arrive at your destination
0 m · 1 sec · Prospect Avenue
Car Route Details
A richer read on the saved driving route between Denville and Plainsboro.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 287 South
Merge slight left
21 mi · 00h 26m
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 Denville and Mostly Sunny near Plainsboro.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Denville to Plainsboro?
The road trip is about 50.6 miles (81.5 km) and usually takes 01h 15m 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?
Bedminster is a useful midpoint, sitting about 25.3 miles from Denville and 25.3 miles from Plainsboro.
How much longer is the road route than the straight-line distance?
The direct path is about 39.1 miles (63 km), while the road route adds roughly 11.5 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 4:00 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.31 one way or $14.63 round trip. Estimated CO2 is about 15.9 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Denville and Mostly Sunny near Plainsboro.
Stop Ideas Near Bedminster
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 Bedminster.
New Brunswick station
Metropark station
Newark Liberty International Airport
Princeton Junction station
Flight Path Map
This map shows the direct air route between Denville and Plainsboro. Straight-line distance: 39.15 mi (63.01 km).
#1 Denville
Township in Morris County, New Jersey
| Population | 16,362 |
| Coordinates | 40.8923200, -74.4773800 |
| Altitude | 154 |
| Country | United States |
#2 Plainsboro
Township in Middlesex County, New Jersey
| Population | 22,709 |
| Coordinates | 40.3334400, -74.6004300 |
| Altitude | 21 |
| Country | United States |
End: Plainsboro (-74.60043, 40.33344)
Estimated Travel Time
Distance: 81 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 41m |
| 40 mph (64.37 km/h) | 01h 15m |
| 50 mph (80.47 km/h) | 01h 00m |
| 60 mph (96.56 km/h) | 00h 50m |
| 70 mph (112.65 km/h) | 00h 43m |
| 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 | $7.31 | $14.63 |
| Mid-grade | $4.60 | $8.23 | $16.46 |
| Premium | $4.95 | $8.87 | $17.74 |
| Diesel | $5.98 | $10.70 | $21.41 |
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 · Jul 24, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.