How far is Mount Olive, NJ from Union, NJ?
The driving distance from Mount Olive, NJ to Union, NJ is about 40.6 miles (65.3 km), with a travel time of about 00h 44m by car.
- The straight-line flight distance is about 26.8 miles (43.1 km).
- For a round trip, plan for roughly 01h 29m 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 44m.
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 New Jersey
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Mount Olive and Union.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mount Olive and Union.
-
1
Start on Mount Olive Road
57 m · 8 sec · Mount Olive Road
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2
Turn left onto Flanders - Drakestown Road
1.7 mi · 4 min · Flanders - Drakestown Road
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3
At the end of the road, turn right onto Flanders Netcong Road
1393 ft · 36 sec · Flanders Netcong Road
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4
Continue on Main Street
824 ft · 23 sec · Main Street
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5
Turn left onto North Road
1455 ft · 29 sec · North Road
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6
Continue on Hillside Avenue
3228 ft · 1 min · Hillside Avenue
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7
Continue on Eyland Avenue
757 ft · 20 sec · Eyland Avenue
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8
Turn left onto Hillside Avenue
2.6 mi · 6 min · Hillside Avenue
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9
Take the ramp right
74 m · 7 sec
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10
Merge slight left onto Route 10 East
8.2 mi · 10 min · Route 10 East
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11
Continue straight
3.5 mi · 4 min
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12
Take the exit straight toward I 287 South: Morristown, Morristown Airport
2727 ft · 1 min
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13
Merge slight left
1.3 km · 1 min
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14
Take the exit slight right toward NJ 24 East: Springfield
1.1 km · 1 min
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15
Continue straight
9.3 mi · 11 min
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16
Keep slight left to continue on I 78 East: Holland Tunnel, New York City, Newark
1877 ft · 29 sec
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17
Keep slight right to continue on I 78 East Local: Newark
1220 ft · 17 sec
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18
Merge slight right onto Phillipsburg-Newark Expressway
1.5 km · 1 min · Phillipsburg-Newark Expressway
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19
Take the exit slight right toward NJ 124 East: Maplewood
1775 ft · 43 sec
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20
Turn straight onto Springfield Avenue
1.3 km · 2 min · Springfield Avenue
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21
Turn right onto Vauxhall Road
2 mi · 5 min · Vauxhall Road
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22
Turn left onto Harding Avenue
74 m · 11 sec · Harding Avenue
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23
Arrive at your destination
0 m · 1 sec · Harding Avenue
Car Route Details
A richer read on the saved driving route between Mount Olive and Union.
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.
NJ 24 East
Continue straight
9.29 mi · 00h 11m
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.
Mostly Sunny leaving Mount Olive 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 Mount Olive to Union?
The road trip is about 40.6 miles (65.3 km) and usually takes 00h 44m 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?
Morris Plains is a useful midpoint, sitting about 16.8 miles from Mount Olive and 23.8 miles from Union.
How much longer is the road route than the straight-line distance?
The direct path is about 26.8 miles (43.1 km), while the road route adds roughly 13.8 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 7:00 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.84 one way or $11.69 round trip. Estimated CO2 is about 12.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Mount Olive and Mostly Sunny near Union.
Stop Ideas Near Morris Plains
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
West Orange Town Hall
Orange Township City Hall
Bloomfield Municipal Building
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Morris Plains.
Newark Liberty International Airport
Pennsylvania Station
Metropark station
New Brunswick station
Flight Path Map
This map shows the direct air route between Mount Olive and Union. Straight-line distance: 26.78 mi (43.1 km).
#1 Mount Olive
Township of New Jersey
| Population | 28,815 |
| Coordinates | 40.8514900, -74.7329400 |
| Altitude | 314 |
| 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: 65 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 21m |
| 40 mph (64.37 km/h) | 01h 00m |
| 50 mph (80.47 km/h) | 00h 48m |
| 60 mph (96.56 km/h) | 00h 40m |
| 70 mph (112.65 km/h) | 00h 34m |
| 80 mph (129 km/h) | 00h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $5.84 | $11.69 |
| Mid-grade | $4.60 | $6.58 | $13.15 |
| Premium | $4.95 | $7.08 | $14.17 |
| Diesel | $5.98 | $8.55 | $17.10 |
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.