How far is Middletown, NJ from Iselin, NJ?
The driving distance from Middletown, NJ to Iselin, NJ is about 20.6 miles (33.2 km), with a travel time of about 00h 30m by car.
- The straight-line flight distance is about 16.5 miles (26.6 km).
- For a round trip, plan for roughly 01h 01m 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 30m.
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.
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 Middletown and Iselin.
Turn-by-Turn Driving Directions
Step-by-step road directions between Middletown and Iselin.
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1
Start on Kings Highway
1023 ft · 25 sec · Kings Highway
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2
Turn left onto New Monmouth Road
1507 ft · 32 sec · New Monmouth Road
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3
Turn left
5.2 mi · 8 min
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4
Take the exit slight left toward GSP: Clark Street
2550 ft · 1 min
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5
Keep slight right to continue on Local, All Exits
1071 ft · 14 sec
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6
Merge slight left onto Garden State Parkway
13.4 mi · 18 min · Garden State Parkway
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7
Take the exit right toward NJ 27: Iselin, Metuchen
1267 ft · 46 sec
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8
Keep slight left to continue on NJ 27: Lincoln Highway
70 m · 13 sec
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9
Turn left onto Lincoln Highway
1802 ft · 36 sec · Lincoln Highway
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10
Turn slight left onto Auth Avenue
707 ft · 29 sec · Auth Avenue
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11
Turn left onto Wright Street
135 m · 19 sec · Wright Street
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12
Arrive at your destination
0 m · 1 sec · Wright Street
Car Route Details
A richer read on the saved driving route between Middletown and Iselin.
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.
Garden State Parkway
Merge slight left onto Garden State Parkway
13.4 mi · 00h 18m
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 Middletown and Mostly Sunny near Iselin.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Middletown to Iselin?
The road trip is about 20.6 miles (33.2 km) and usually takes 00h 30m 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?
Laurence Harbor is a useful midpoint, sitting about 10.3 miles from Middletown and 10.3 miles from Iselin.
How much longer is the road route than the straight-line distance?
The direct path is about 16.5 miles (26.6 km), while the road route adds roughly 4.1 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 7:28 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.98 one way or $5.97 round trip. Estimated CO2 is about 6.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Middletown and Mostly Sunny near Iselin.
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 Middletown and Iselin. Straight-line distance: 16.52 mi (26.59 km).
#1 Middletown
Middletown is a place in New Jersey, United States.
| Population | 0 |
| Coordinates | 40.3942800, -74.1170900 |
| Altitude | 36 |
| Country | United States |
#2 Iselin
Unincorporated community in New Jersey, United States
| Population | 18,695 |
| Coordinates | 40.5753800, -74.3223700 |
| Altitude | 19 |
| Country | United States |
End: Iselin (-74.32237, 40.57538)
Estimated Travel Time
Distance: 33 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 41m |
| 40 mph (64.37 km/h) | 00h 30m |
| 50 mph (80.47 km/h) | 00h 24m |
| 60 mph (96.56 km/h) | 00h 20m |
| 70 mph (112.65 km/h) | 00h 17m |
| 80 mph (129 km/h) | 00h 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $2.98 | $5.97 |
| Mid-grade | $4.60 | $3.36 | $6.71 |
| Premium | $4.95 | $3.62 | $7.23 |
| Diesel | $5.98 | $4.37 | $8.73 |
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.