How far is Readington, NJ from Union, NJ?
The driving distance from Readington, NJ to Union, NJ is about 35.3 miles (56.8 km), with a travel time of about 00h 39m by car.
- The straight-line flight distance is about 26.4 miles (42.5 km).
- For a round trip, plan for roughly 01h 19m 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 39m.
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.
Borough in Middlesex County, New Jersey
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain
Driving Route Map
The map below follows the saved road route between Readington and Union.
Turn-by-Turn Driving Directions
Step-by-step road directions between Readington and Union.
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1
Start on the route
14 m · 8 sec
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2
Turn left onto Readington Road
1.4 km · 2 min · Readington Road
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3
Continue on Dreahook Road
2345 ft · 1 min · Dreahook Road
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4
Continue on Old York Road
1.3 km · 2 min · Old York Road
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5
Turn left
4.5 mi · 7 min
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6
Take the exit slight right toward US 22 East: New York, Somerville
140 m · 13 sec
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7
Keep slight left to continue on US 22 East: New York
945 ft · 27 sec
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8
Merge slight left
4 mi · 5 min
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9
Continue straight
2 mi · 3 min
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10
Continue straight
8.6 mi · 13 min
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11
Continue straight
5.4 mi · 9 min
-
12
Continue straight
3162 ft · 60 sec
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13
Take the exit slight right toward Fairway Drive South
68 m · 16 sec
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14
Turn straight onto Fairway Drive East
1915 ft · 1 min · Fairway Drive East
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15
At the end of the road, turn left onto Chestnut Street
88 m · 19 sec · Chestnut Street
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16
Keep slight right to continue on Stuyvesant Avenue
3231 ft · 2 min · Stuyvesant Avenue
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17
Turn right onto Vauxhall Road
1087 ft · 41 sec · Vauxhall Road
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18
Turn left onto Harding Avenue
74 m · 11 sec · Harding Avenue
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19
Arrive at your destination
0 m · 1 sec · Harding Avenue
Car Route Details
A richer read on the saved driving route between Readington 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.
US 22 East
Continue straight
8.63 mi · 00h 13m
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 Readington and Light Rain near Union.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Readington to Union?
The road trip is about 35.3 miles (56.8 km) and usually takes 00h 39m 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?
Dunellen is a useful midpoint, sitting about 14.4 miles from Readington and 20.9 miles from Union.
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 8.9 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:10 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.11 one way or $10.22 round trip. Estimated CO2 is about 11.1 kg one way.
What should you check before leaving?
Before you leave, expect Rain around Readington and Light Rain near Union.
Stop Ideas Near Dunellen
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 Dunellen.
New Brunswick station
Metropark station
Newark Liberty International Airport
Pennsylvania Station
Flight Path Map
This map shows the direct air route between Readington and Union. Straight-line distance: 26.43 mi (42.53 km).
#1 Readington
Unincorporated community in Hunterdon County, New Jersey
| Population | 15,863 |
| Coordinates | 40.5687100, -74.7376600 |
| Altitude | 33 |
| 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: 57 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 10m |
| 40 mph (64.37 km/h) | 00h 52m |
| 50 mph (80.47 km/h) | 00h 42m |
| 60 mph (96.56 km/h) | 00h 35m |
| 70 mph (112.65 km/h) | 00h 30m |
| 80 mph (129 km/h) | 00h 26m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $5.11 | $10.22 |
| Mid-grade | $4.60 | $5.75 | $11.50 |
| Premium | $4.95 | $6.19 | $12.39 |
| Diesel | $5.98 | $7.48 | $14.95 |
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.