How far is Washington, NJ from Union, NJ?
The driving distance from Washington, NJ to Union, NJ is about 48.6 miles (78.2 km), with a travel time of about 00h 53m by car.
- The straight-line flight distance is about 37.7 miles (60.7 km).
- For a round trip, plan for roughly 01h 47m 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 00h 53m.
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 Washington and Union.
Turn-by-Turn Driving Directions
Step-by-step road directions between Washington and Union.
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1
Start on East Washington Avenue
1130 ft · 19 sec · East Washington Avenue
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2
Turn right
10.8 mi · 16 min
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3
Take the exit slight left toward I 78 East, US 22 East: Newark
1479 ft · 36 sec · ramp to I-78/US 22 East
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4
Merge slight left onto Phillipsburg-Newark Expressway
13.8 mi · 16 min · Phillipsburg-Newark Expressway
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5
Keep slight right to continue on Phillipsburg-Newark Expressway
16.6 mi · 19 min · Phillipsburg-Newark Expressway
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6
Keep slight right to continue on Phillipsburg-Newark Expressway
2.1 mi · 2 min · Phillipsburg-Newark Expressway
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7
Take the exit slight right toward NJ 124 East: Maplewood
1775 ft · 43 sec
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8
Turn straight onto Springfield Avenue
1.3 km · 2 min · Springfield Avenue
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9
Turn right onto Vauxhall Road
2 mi · 5 min · Vauxhall Road
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10
Turn left onto Harding Avenue
74 m · 11 sec · Harding Avenue
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11
Arrive at your destination
0 m · 1 sec · Harding Avenue
Car Route Details
A richer read on the saved driving route between Washington and Union.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Phillipsburg-Newark Expressway
Keep slight right to continue on Phillipsburg-Newark Expressway
16.6 mi · 00h 19m
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 Washington 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 Washington to Union?
The road trip is about 48.6 miles (78.2 km) and usually takes 00h 53m 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 23.5 miles from Washington and 25.1 miles from Union.
How much longer is the road route than the straight-line distance?
The direct path is about 37.7 miles (60.7 km), while the road route adds roughly 10.9 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 4:42 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.99 one way or $13.97 round trip. Estimated CO2 is about 15.2 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Washington and Mostly Sunny near Union.
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 Washington and Union. Straight-line distance: 37.73 mi (60.72 km).
#1 Washington
Borough in Warren County, New Jersey, United States
| Population | 6,498 |
| Coordinates | 40.7584300, -74.9793400 |
| Altitude | 139 |
| 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: 78 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 37m |
| 40 mph (64.37 km/h) | 01h 12m |
| 50 mph (80.47 km/h) | 00h 58m |
| 60 mph (96.56 km/h) | 00h 48m |
| 70 mph (112.65 km/h) | 00h 41m |
| 80 mph (129 km/h) | 00h 36m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $6.99 | $13.97 |
| Mid-grade | $4.60 | $7.86 | $15.73 |
| Premium | $4.95 | $8.47 | $16.94 |
| Diesel | $5.98 | $10.23 | $20.45 |
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.