How far is Denville, NJ from Seaside Park, NJ?
The driving distance from Denville, NJ to Seaside Park, NJ is about 85.8 miles (138.1 km), with a travel time of about 01h 58m by car.
- The straight-line flight distance is about 70 miles (112.6 km).
- For a round trip, plan for roughly 03h 56m 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 01h 58m.
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.
Town
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers then Chance Showers And Thunderstorms
Slight Chance Rain Showers then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Denville and Seaside Park.
Turn-by-Turn Driving Directions
Step-by-step road directions between Denville and Seaside Park.
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1
Start on Broadway Avenue
27 m · 4 sec · Broadway Avenue
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2
Turn right onto Center Street
79 m · 13 sec · Center Street
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3
Turn right onto Bloomfield Avenue
72 m · 9 sec · Bloomfield Avenue
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4
Turn left onto East Main Street
656 ft · 24 sec · East Main Street
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5
Turn left onto I 80 East
1205 ft · 30 sec
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6
Merge slight left onto Christopher Columbus Highway
3.6 mi · 4 min · Christopher Columbus Highway
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7
Take the exit slight right toward I 287: Morristown, Mahwah
732 ft · 18 sec
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8
Keep slight right to continue on I 287 South: Morristown, Somerville
1168 ft · 29 sec
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9
Merge slight left
3.4 mi · 5 min
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10
Take the exit slight right toward NJ 24 East: Springfield
1.1 km · 1 min
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11
Continue straight
9.3 mi · 11 min
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12
Keep slight left to continue on I 78 East: Holland Tunnel, New York City, Newark
1877 ft · 29 sec
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13
Keep slight right to continue on I 78 East Local: Newark
1220 ft · 17 sec
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14
Merge slight right onto Phillipsburg-Newark Expressway
3.4 mi · 4 min · Phillipsburg-Newark Expressway
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15
Take the exit slight right toward GSP: G.S. Parkway
1412 ft · 48 sec
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16
Keep slight right to continue on GSP South
3153 ft · 2 min
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17
Merge slight left onto Garden State Parkway
10.6 mi · 14 min · Garden State Parkway
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18
Continue on Garden State Parkway Southbound
6.2 mi · 8 min · Garden State Parkway Southbound
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19
Keep slight left to continue on Garden State Parkway
1.2 km · 49 sec · Garden State Parkway
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20
Keep slight right to continue on Garden State Parkway
26.5 mi · 31 min · Garden State Parkway
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21
Take the exit slight right toward NJ 138 East, I 195 West, NJ 34: Belmar, Trenton
3156 ft · 1 min
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22
Keep slight left to continue on NJ 34 South, NJ 34 North, I 195 West: Brielle, Trenton
824 ft · 20 sec
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23
Keep slight left to continue on NJ 34 South: Brielle
1 km · 1 min
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24
Merge slight left
3277 ft · 45 sec
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25
Enter the roundabout and take exit 2 toward the route
69 m · 3 sec
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26
Exit the roundabout
2.6 mi · 3 min
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27
Continue straight
3.4 mi · 6 min
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28
Continue on Main Avenue
567 ft · 10 sec · Main Avenue
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29
Continue on Ocean Avenue
3.5 mi · 8 min · Ocean Avenue
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30
Continue on West Central Avenue
3.5 mi · 6 min · West Central Avenue
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31
Continue on Anna O Hankins Boulevard
1.2 mi · 2 min · Anna O Hankins Boulevard
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32
Continue on East Central Avenue
1.1 km · 1 min · East Central Avenue
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33
Turn straight
2 mi · 4 min
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34
Turn left onto E Street
73 m · 11 sec · E Street
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35
Arrive at your destination
0 m · 1 sec · E Street
Car Route Details
A richer read on the saved driving route between Denville and Seaside Park.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Garden State Parkway
Keep slight right to continue on Garden State Parkway
26.5 mi · 00h 31m
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.
Slight Chance Rain Showers then Chance Showers And Thunderstorms leaving Denville and Slight Chance Rain Showers then Chance Showers And Thunderstorms near Seaside Park.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Denville to Seaside Park?
The road trip is about 85.8 miles (138.1 km) and usually takes 01h 58m 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?
Laurence Harbor is a useful midpoint, sitting about 42.9 miles from Denville and 42.9 miles from Seaside Park.
How much longer is the road route than the straight-line distance?
The direct path is about 70 miles (112.6 km), while the road route adds roughly 15.8 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 2:34 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.38 one way or $24.76 round trip. Estimated CO2 is about 26.9 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers then Chance Showers And Thunderstorms around Denville and Slight Chance Rain Showers then Chance Showers And Thunderstorms near Seaside Park.
Stop Ideas Near Laurence Harbor
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 Laurence Harbor.
Metropark station
New Brunswick station
Newark Liberty International Airport
Pennsylvania Station
Flight Path Map
This map shows the direct air route between Denville and Seaside Park. Straight-line distance: 69.95 mi (112.58 km).
#1 Denville
Township in Morris County, New Jersey
| Population | 16,362 |
| Coordinates | 40.8923200, -74.4773800 |
| Altitude | 154 |
| Country | United States |
#2 Seaside Park
Borough in New Jersey, United States
| Population | 1,561 |
| Coordinates | 39.9267900, -74.0770800 |
| Altitude | 2 |
| Country | United States |
End: Seaside Park (-74.07708, 39.92679)
Estimated Travel Time
Distance: 138 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 51m |
| 40 mph (64.37 km/h) | 02h 08m |
| 50 mph (80.47 km/h) | 01h 42m |
| 60 mph (96.56 km/h) | 01h 25m |
| 70 mph (112.65 km/h) | 01h 13m |
| 80 mph (129 km/h) | 01h 04m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $12.38 | $24.76 |
| Mid-grade | $4.60 | $13.93 | $27.87 |
| Premium | $4.95 | $15.01 | $30.02 |
| Diesel | $5.98 | $18.12 | $36.24 |
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 10, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.