How far is Union, NJ from Readington, NJ?
The driving distance from Union, NJ to Readington, NJ is about 33.8 miles (54.4 km), with a travel time of about 00h 47m by car.
- The straight-line flight distance is about 26.4 miles (42.5 km).
- For a round trip, plan for roughly 01h 35m 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 47m.
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.
Borough in Somerset County, New Jersey, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain
Rain
Driving Route Map
The map below follows the saved road route between Union and Readington.
Turn-by-Turn Driving Directions
Step-by-step road directions between Union and Readington.
-
1
Start on Harding Avenue
74 m · 12 sec · Harding Avenue
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2
Turn right onto Vauxhall Road
2 mi · 5 min · Vauxhall Road
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3
Turn left onto Springfield Avenue
3245 ft · 1 min · Springfield Avenue
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4
Continue on Springfield Avenue
149 m · 10 sec · Springfield Avenue
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5
Take the ramp slight right toward I 78 West: Clinton
1630 ft · 41 sec
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6
Merge slight left onto Phillipsburg-Newark Expressway
18.9 mi · 22 min · Phillipsburg-Newark Expressway
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7
Take the exit slight right toward I 287: Morristown, Somerville
2521 ft · 43 sec
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8
Keep slight left to continue on I 287 South, US 202 South, US 206 South: Somerville
1 mi · 1 min
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9
Merge slight right
2.3 mi · 3 min
-
10
Take the exit slight left toward US 202 South, US 206 South: Somerville, Flemington
1 km · 43 sec
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11
Merge slight left
5.3 mi · 8 min
-
12
Turn right onto Old York Road
1.3 km · 2 min · Old York Road
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13
Continue on Dreahook Road
2345 ft · 1 min · Dreahook Road
-
14
Continue on Readington Road
1.4 km · 2 min · Readington Road
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15
Turn right
14 m · 3 sec
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16
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Union and Readington.
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.
Phillipsburg-Newark Expressway
Merge slight left onto Phillipsburg-Newark Expressway
18.9 mi · 00h 22m
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.
Light Rain leaving Union and Rain near Readington.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Union to Readington?
The road trip is about 33.8 miles (54.4 km) and usually takes 00h 47m 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?
Watchung is a useful midpoint, sitting about 16.8 miles from Union and 16.9 miles from Readington.
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 7.4 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 4:54 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.86 one way or $9.72 round trip. Estimated CO2 is about 10.6 kg one way.
What should you check before leaving?
Before you leave, expect Light Rain around Union and Rain near Readington.
Stop Ideas Near Watchung
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 Watchung.
Metropark station
New Brunswick station
Newark Liberty International Airport
Pennsylvania Station
Flight Path Map
This map shows the direct air route between Union and Readington. Straight-line distance: 26.43 mi (42.53 km).
#1 Union
A city in Union County, New Jersey.
| Population | 67,137 |
| Coordinates | 40.6976000, -74.2632000 |
| Altitude | 30 |
| Country | United States |
#2 Readington
Unincorporated community in Hunterdon County, New Jersey
| Population | 15,863 |
| Coordinates | 40.5687100, -74.7376600 |
| Altitude | 33 |
| Country | United States |
End: Readington (-74.73766, 40.56871)
Estimated Travel Time
Distance: 54 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 07m |
| 40 mph (64.37 km/h) | 00h 50m |
| 50 mph (80.47 km/h) | 00h 40m |
| 60 mph (96.56 km/h) | 00h 33m |
| 70 mph (112.65 km/h) | 00h 28m |
| 80 mph (129 km/h) | 00h 25m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $4.86 | $9.72 |
| Mid-grade | $4.60 | $5.47 | $10.95 |
| Premium | $4.95 | $5.90 | $11.79 |
| Diesel | $5.98 | $7.12 | $14.23 |
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 25, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.