How far is Dunellen, NJ from Union, NJ?
The driving distance from Dunellen, NJ to Union, NJ is about 16.5 miles (26.5 km), with a travel time of about 00h 28m by car.
- The straight-line flight distance is about 13.2 miles (21.3 km).
- For a round trip, plan for roughly 00h 57m 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 28m.
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 Union County, New Jersey, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Dunellen and Union.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dunellen and Union.
-
1
Start on Dunellen Avenue
2498 ft · 2 min · Dunellen Avenue
-
2
Turn left onto North Washington Avenue
1.5 km · 2 min · North Washington Avenue
-
3
Turn right
6.5 mi · 10 min
-
4
Continue straight
5.4 mi · 9 min
-
5
Continue straight
3162 ft · 60 sec
-
6
Take the exit slight right toward Fairway Drive South
68 m · 16 sec
-
7
Turn straight onto Fairway Drive East
1915 ft · 1 min · Fairway Drive East
-
8
At the end of the road, turn left onto Chestnut Street
88 m · 19 sec · Chestnut Street
-
9
Keep slight right to continue on Stuyvesant Avenue
3231 ft · 2 min · Stuyvesant Avenue
-
10
Turn right onto Vauxhall Road
1087 ft · 41 sec · Vauxhall Road
-
11
Turn left onto Harding Avenue
74 m · 11 sec · Harding Avenue
-
12
Arrive at your destination
0 m · 1 sec · Harding Avenue
Car Route Details
A richer read on the saved driving route between Dunellen and Union.
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.
Longest stretch
Turn right
6.51 mi · 00h 10m
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.
Mostly Sunny leaving Dunellen and Mostly Sunny near Union.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dunellen to Union?
The road trip is about 16.5 miles (26.5 km) and usually takes 00h 28m 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?
Scotch Plains is a useful midpoint, sitting about 7.6 miles from Dunellen and 8.9 miles from Union.
How much longer is the road route than the straight-line distance?
The direct path is about 13.2 miles (21.3 km), while the road route adds roughly 3.3 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 7:32 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.37 one way or $4.74 round trip. Estimated CO2 is about 5.2 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Dunellen and Mostly Sunny near Union.
Stop Ideas Near Scotch Plains
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
West Orange Town Hall
City of Elizabeth
Bloomfield Municipal Building
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Scotch Plains.
Metropark station
Newark Liberty International Airport
New Brunswick station
Pennsylvania Station
Flight Path Map
This map shows the direct air route between Dunellen and Union. Straight-line distance: 13.25 mi (21.33 km).
#1 Dunellen
Borough in Middlesex County, New Jersey
| Population | 7,141 |
| Coordinates | 40.5892700, -74.4718200 |
| Altitude | 14 |
| Country | United States |
#2 Union
A city in Union County, New Jersey.
| Population | 67,137 |
| Coordinates | 40.6976000, -74.2632000 |
| Altitude | 30 |
| Country | United States |
End: Harding Avenue (-74.26348, 40.697581)
Estimated Travel Time
Distance: 27 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 32m |
| 40 mph (64.37 km/h) | 00h 24m |
| 50 mph (80.47 km/h) | 00h 19m |
| 60 mph (96.56 km/h) | 00h 16m |
| 70 mph (112.65 km/h) | 00h 14m |
| 80 mph (129 km/h) | 00h 12m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $2.37 | $4.74 |
| Mid-grade | $4.60 | $2.67 | $5.33 |
| Premium | $4.95 | $2.87 | $5.75 |
| Diesel | $5.98 | $3.47 | $6.94 |
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.