How far is Spring Lake Heights, NJ from Union, NJ?

The driving distance from Spring Lake Heights, NJ to Union, NJ is about 49.2 miles (79.2 km), with a travel time of about 00h 57m by car.

  • The straight-line flight distance is about 39.7 miles (63.9 km).
  • For a round trip, plan for roughly 01h 54m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
49.18 mi
00h 57m
Flight
39.73 mi
63.94 km direct

This route works well as a day trip with time at the destination.

Learn Distance

Choose another destination from Spring Lake Heights.

Flight Distance

Direct air line
39.73 mi
Kilometers
63.94 km
Flight Time
00h 04m

Driving Distance

Road route
49.18 mi
Kilometers
79.15 km
Drive Time
00h 57m

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 57m.

Arrival Snapshot
Arrive in Union
Sun, Jun 7, 4:06 AM EDT
Return by in Spring Lake Heights
Sun, Jun 7, 5:03 AM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Spring Lake Heights
2026-06-07T03:09
Arrive Union
Sun, Jun 7, 4:06 AM EDT
Route Timing
00h 57m
One way by road
Best Departure Window
8:00 AM to 10:00 AM EDT
Aim for a morning departure
Arrive between
8:57 AM to 10:57 AM EDT

A morning start gives you useful time at the destination and keeps the return out of the late evening.

Leave by
4:36 PM EDT
Keeps a same-day return open with about 03h 00m at the destination.
Back in Spring Lake Heights
9:30 PM EDT
Morning start is best

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.

Mid-route stop
Hazlet
NJ

Township in Monmouth County, New Jersey

From Spring Lake Heights
24.1 mi
00h 28m
To Union
25 mi
00h 28m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
93°F
Sunday

Sunny

Starts
Sun, Jun 7 6:00 AM EDT
Wind
5 mph W
Destination
Union Weather
NJ
Live fallback forecast
90°F
Sunday
Using Hillside as the closest live forecast in the Union County weather hub.

Sunny

Starts
Sun, Jun 7 6:00 AM EDT
Wind
5 to 10 mph W

Driving Route Map

The map below follows the saved road route between Spring Lake Heights and Union.

Turn-by-Turn Driving Directions

Step-by-step road directions between Spring Lake Heights and Union.

  1. 1

    Start on 4th Avenue

    17 m · 6 sec · 4th Avenue

  2. 2

    Turn left onto Warren Avenue

    2230 ft · 1 min · Warren Avenue

  3. 3

    Turn right onto Route 71

    1.9 mi · 4 min · Route 71

  4. 4

    Merge slight left onto River Road

    3.6 mi · 5 min · River Road

  5. 5

    Keep slight left to continue on Asbury Park Circle

    1157 ft · 20 sec · Asbury Park Circle

  6. 6

    Continue on Asbury Park Circle

    119 m · 7 sec · Asbury Park Circle

  7. 7

    Keep slight right to continue on Asbury Avenue

    1.1 mi · 1 min · Asbury Avenue

  8. 8

    Continue on Asbury Avenue

    1.5 mi · 2 min · Asbury Avenue

  9. 9

    Take the ramp slight right toward GSP Toll North

    1750 ft · 43 sec

  10. 10

    Merge slight left onto Garden State Parkway

    1818 ft · 24 sec · Garden State Parkway

  11. 11

    Keep slight left

    2399 ft · 31 sec

  12. 12

    Continue on Garden State Parkway

    37.1 mi · 47 min · Garden State Parkway

  13. 13

    Take the exit slight right toward US 22, NJ 82: Hillside

    1526 ft · 39 sec

  14. 14

    Merge slight left

    48 m · 3 sec

  15. 15

    Take the exit slight right toward NJ 82: Morris Avenue, Kean University, Elizabeth

    878 ft · 24 sec

  16. 16

    Turn slight right onto Morris Avenue

    690 ft · 15 sec · Morris Avenue

  17. 17

    Turn slight right

    155 m · 44 sec

  18. 18

    Turn left onto Morris Avenue

    2494 ft · 55 sec · Morris Avenue

  19. 19

    Turn right onto Harding Avenue

    646 ft · 29 sec · Harding Avenue

  20. 20

    Turn right onto Vauxhall Road

    10 m · 5 sec · Vauxhall Road

  21. 21

    Turn left onto Harding Avenue

    74 m · 11 sec · Harding Avenue

  22. 22

    Arrive at your destination

    0 m · 1 sec · Harding Avenue

Car Route Details

A richer read on the saved driving route between Spring Lake Heights and Union.

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
22 steps
8 turns on the saved route
Ramps & Exits
6
3 merges, 3 ramps or exits
Navigation Density
44.7 / 100 mi
Decision points by distance
Main Roads
Garden State Parkway
37.9 mi · 77%
River Road
3.55 mi · 7%
Asbury Avenue
2.51 mi · 5%
Route 71
1.86 mi · 4%
Morris Avenue
0.6 mi · 1%
Warren Avenue
0.42 mi · 1%
Longest Stretch

Garden State Parkway

Continue on Garden State Parkway

37.1 mi · 00h 47m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
00h 57m
Day trip friendly
Same-Day Return
01h 54m
Round-trip wheel time
Road vs Air
+9.5 mi
39.7 mi direct line
Halfway Stop
Hazlet
00h 28m from Spring Lake Heights
Leave By
4:36 PM EDT
Morning start is best
Weather Watch

Sunny leaving Spring Lake Heights and Sunny near Union.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Spring Lake Heights to Union?

The road trip is about 49.2 miles (79.2 km) and usually takes 00h 57m 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?

Hazlet is a useful midpoint, sitting about 24.1 miles from Spring Lake Heights and 25 miles from Union.

How much longer is the road route than the straight-line distance?

The direct path is about 39.7 miles (63.9 km), while the road route adds roughly 9.5 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 4:36 PM EDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $7.11 one way or $14.22 round trip. Estimated CO2 is about 15.5 kg one way.

What should you check before leaving?

Before you leave, expect Sunny around Spring Lake Heights and Sunny near Union.

Stop Ideas Near Hazlet

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Hazlet, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Hazlet.

RAIL

Metropark station

20 mi away
100 Middlesex-Essex Turnpike
RAIL

New Brunswick station

24 mi away
French and Albany Streets
RAIL

Newark Liberty International Airport

32 mi away
Newark Liberty International Airport
RAIL

Pennsylvania Station

35 mi away
1 Raymond Plaza West

Flight Path Map

This map shows the direct air route between Spring Lake Heights and Union. Straight-line distance: 39.73 mi (63.94 km).

Spring Lake Heights

#1 Spring Lake Heights

Borough of New Jersey, United States

Population4,495
Coordinates40.1503900, -74.0309700
Altitude5
CountryUnited States
Union

#2 Union

A city in Union County, New Jersey.

Population67,137
Coordinates40.6976000, -74.2632000
Altitude30
CountryUnited States
Start: 4th Avenue (-74.030998, 40.150395)
End: Harding Avenue (-74.26348, 40.697581)

Estimated Travel Time

Distance: 79 km by road

SpeedTime
30 mph (48.3 km/h)01h 38m
40 mph (64.37 km/h)01h 13m
50 mph (80.47 km/h)00h 59m
60 mph (96.56 km/h)00h 49m
70 mph (112.65 km/h)00h 42m
80 mph (129 km/h)00h 36m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
1.74 gal
6.57 L · about $7.11
Round trip
$14.22
3.48 gal · 13.14 L
Estimated CO2
15.5 kg one way
Round trip: 30.9 kg / 68 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.09 $7.11 $14.22
Mid-grade $4.60 $8.00 $16.00
Premium $4.95 $8.62 $17.24
Diesel $5.98 $10.41 $20.81

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 · Jun 07, 2026

There is no time difference between Spring Lake Heights and Union. The current time is 03:09:43.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.