How far is Union, NJ from Marlboro, NJ?
The driving distance from Union, NJ to Marlboro, NJ is about 30.7 miles (49.4 km), with a travel time of about 00h 43m by car.
- The straight-line flight distance is about 26.4 miles (42.5 km).
- For a round trip, plan for roughly 01h 26m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EST.
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 43m.
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.
City in New Jersey
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Union and Marlboro.
Turn-by-Turn Driving Directions
Step-by-step road directions between Union and Marlboro.
-
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
-
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
6.2 mi · 8 min · Garden State Parkway Southbound
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8
Keep slight left to continue on Garden State Parkway
1.2 km · 49 sec · Garden State Parkway
-
9
Keep slight right to continue on Garden State Parkway
2254 ft · 30 sec · Garden State Parkway
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10
Take the exit slight right toward US 9 South: Sayreville, Old Bridge
1910 ft · 47 sec
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11
Merge slight left onto US Highway 9
7 mi · 10 min · US Highway 9
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12
Take the exit slight left toward NJ 18 South: Asbury Park, Shore Points
2360 ft · 51 sec
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13
Merge slight left
4.9 mi · 5 min
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14
Take the exit slight right toward NJ 79 North: Matawan
1108 ft · 27 sec
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15
Turn straight onto South Main Street
2707 ft · 50 sec · South Main Street
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16
Turn right onto Vanderburg Road
121 m · 10 sec · Vanderburg Road
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17
Turn right onto Hudson Street
27 m · 4 sec · Hudson Street
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18
Arrive at your destination
0 m · 1 sec · Hudson Street
Car Route Details
A richer read on the saved driving route between Union and Marlboro.
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.
Rain leaving Union and Showers And Thunderstorms near Marlboro.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Union to Marlboro?
The road trip is about 30.7 miles (49.4 km) and usually takes 00h 43m 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?
South Amboy is a useful midpoint, sitting about 15.3 miles from Union and 15.3 miles from Marlboro.
How much longer is the road route than the straight-line distance?
The direct path is about 26.4 miles (42.5 km), while the road route adds roughly 4.3 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 EST. If you want a more comfortable same-day return, try to leave by 7:04 PM EST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.42 one way or $8.85 round trip. Estimated CO2 is about 9.6 kg one way.
What should you check before leaving?
Before you leave, expect Rain around Union and Showers And Thunderstorms near Marlboro.
Stop Ideas Near South Amboy
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 South Amboy.
Metropark station
New Brunswick station
Newark Liberty International Airport
Pennsylvania Station
Flight Path Map
This map shows the direct air route between Union and Marlboro. Straight-line distance: 26.42 mi (42.52 km).
#1 Union
A city in Union County, New Jersey.
| Population | 67,137 |
| Coordinates | 40.6976000, -74.2632000 |
| Altitude | 30 |
| Country | United States |
#2 Marlboro
Marlboro is a place in New Jersey, United States.
| Population | 0 |
| Coordinates | 40.3153900, -74.2462600 |
| Altitude | 52 |
| Country | United States |
End: Marlboro (-74.24626, 40.31539)
Estimated Travel Time
Distance: 49 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 01m |
| 40 mph (64.37 km/h) | 00h 46m |
| 50 mph (80.47 km/h) | 00h 36m |
| 60 mph (96.56 km/h) | 00h 30m |
| 70 mph (112.65 km/h) | 00h 26m |
| 80 mph (129 km/h) | 00h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.10 | $4.42 | $8.85 |
| Mid-grade | $4.72 | $5.10 | $10.20 |
| Premium | $5.04 | $5.44 | $10.88 |
| Diesel | $6.33 | $6.84 | $13.68 |
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 · Nov 06, 2026