How far is Union, NJ from Piscataway, NJ?
The driving distance from Union, NJ to Piscataway, NJ is about 17.3 miles (27.9 km), with a travel time of about 00h 28m by car.
- The straight-line flight distance is about 15.5 miles (24.9 km).
- For a round trip, plan for roughly 00h 56m 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.
Unincorporated community in New Jersey, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Union and Piscataway.
Turn-by-Turn Driving Directions
Step-by-step road directions between Union and Piscataway.
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1
Start on Harding Avenue
74 m · 12 sec · Harding Avenue
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2
Turn right onto Vauxhall Road
1087 ft · 42 sec · Vauxhall Road
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3
Turn left onto Stuyvesant Avenue
3120 ft · 2 min · Stuyvesant Avenue
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4
Continue on Chestnut Street
708 ft · 28 sec · Chestnut Street
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5
Take the ramp slight right toward GSP Toll South
1588 ft · 39 sec
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6
Merge slight left onto Garden State Parkway
8.6 mi · 12 min · Garden State Parkway
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7
Continue on Garden State Parkway Southbound
1.3 mi · 2 min · Garden State Parkway Southbound
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8
Take the exit slight right toward US 1: Newark, Trenton
1110 ft · 27 sec
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9
Keep slight right to continue on US 1 South: Trenton
1453 ft · 35 sec
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10
Merge slight left
636 ft · 13 sec
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11
Continue straight
2.1 mi · 3 min
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12
Continue straight
2.8 mi · 4 min
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13
Take the exit slight right
64 m · 4 sec
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14
Turn straight onto Fulton Street
644 ft · 23 sec · Fulton Street
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15
Turn left onto Plainfield Avenue
1799 ft · 59 sec · Plainfield Avenue
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16
At the end of the road, turn right onto Woodbridge Avenue
34 m · 8 sec · Woodbridge Avenue
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17
Turn left onto Thomasina Street
594 ft · 26 sec · Thomasina Street
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18
Arrive at your destination
0 m · 1 sec · Germantown Avenue
Car Route Details
A richer read on the saved driving route between Union and Piscataway.
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.
Garden State Parkway
Merge slight left onto Garden State Parkway
8.63 mi · 00h 12m
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 Union and Sunny near Piscataway.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Union to Piscataway?
The road trip is about 17.3 miles (27.9 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?
Iselin is a useful midpoint, sitting about 8.7 miles from Union and 8.7 miles from Piscataway.
How much longer is the road route than the straight-line distance?
The direct path is about 15.5 miles (24.9 km), while the road route adds roughly 1.8 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 7:34 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.49 one way or $4.98 round trip. Estimated CO2 is about 5.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Union and Sunny near Piscataway.
Stop Ideas Near Iselin
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
West Orange Town Hall
City Hall - City of Newark
City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Iselin.
Metropark station
New Brunswick station
Newark Liberty International Airport
Pennsylvania Station
Flight Path Map
This map shows the direct air route between Union and Piscataway. Straight-line distance: 15.45 mi (24.86 km).
#1 Union
A city in Union County, New Jersey.
| Population | 67,137 |
| Coordinates | 40.6976000, -74.2632000 |
| Altitude | 30 |
| Country | United States |
#2 Piscataway
Township in New Jersey, United States
| Population | 57,164 |
| Coordinates | 40.4992700, -74.3990400 |
| Altitude | 30 |
| Country | United States |
End: Piscataway (-74.39904, 40.49927)
Estimated Travel Time
Distance: 28 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 34m |
| 40 mph (64.37 km/h) | 00h 26m |
| 50 mph (80.47 km/h) | 00h 20m |
| 60 mph (96.56 km/h) | 00h 17m |
| 70 mph (112.65 km/h) | 00h 14m |
| 80 mph (129 km/h) | 00h 13m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $2.49 | $4.98 |
| Mid-grade | $4.60 | $2.81 | $5.61 |
| Premium | $4.95 | $3.02 | $6.04 |
| Diesel | $5.98 | $3.65 | $7.30 |
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 01, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.