How far is Middletown, NJ from Mercerville, NJ?
The driving distance from Middletown, NJ to Mercerville, NJ is about 39.8 miles (64.1 km), with a travel time of about 01h 04m by car.
- The straight-line flight distance is about 31.9 miles (51.3 km).
- For a round trip, plan for roughly 02h 08m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EST.
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 04m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Census designated place
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Clear
Partly Cloudy
Driving Route Map
The map below follows the saved road route between Middletown and Mercerville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Middletown and Mercerville.
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1
Start on Kings Highway
11 m · 8 sec · Kings Highway
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2
Turn left onto Church Street
1714 ft · 34 sec · Church Street
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3
Continue on Middletown Lincroft Road
4.4 mi · 8 min · Middletown Lincroft Road
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4
Continue on Swimming River Road
1.8 mi · 3 min · Swimming River Road
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5
Turn right onto Colts Neck Road
10.8 mi · 17 min · Colts Neck Road
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6
Take the ramp slight right toward NJ 33 West: Hightstown, Trenton
1645 ft · 40 sec
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7
Merge slight left onto Freehold Bypass
10.8 mi · 15 min · Freehold Bypass
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8
Take the exit straight toward NJ 133 West: East Windsor, Princeton
1511 ft · 37 sec
-
9
Merge slight left onto Hightstown Bypass
3.2 mi · 5 min · Hightstown Bypass
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10
Take the exit slight right toward CR 571 West: Princeton
1220 ft · 30 sec
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11
Turn slight right onto Princeton-Hightstown Road
826 ft · 18 sec · Princeton-Hightstown Road
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12
Turn left onto Old Trenton Road
5.5 mi · 10 min · Old Trenton Road
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13
Continue on Edinburg Road
1.9 mi · 4 min · Edinburg Road
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14
Arrive at your destination
0 m · 1 sec · Edinburg Road
Car Route Details
A richer read on the saved driving route between Middletown and Mercerville.
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.
Colts Neck Road
Turn right onto Colts Neck Road
10.8 mi · 00h 17m
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.
Mostly Clear leaving Middletown and Partly Cloudy near Mercerville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Middletown to Mercerville?
The road trip is about 39.8 miles (64.1 km) and usually takes 01h 04m 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?
West Freehold is a useful midpoint, sitting about 19.9 miles from Middletown and 19.9 miles from Mercerville.
How much longer is the road route than the straight-line distance?
The direct path is about 31.9 miles (51.3 km), while the road route adds roughly 7.9 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 8:00 AM to 10:00 AM EST. If you want a more comfortable same-day return, try to leave by 4:22 PM EST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.75 one way or $11.50 round trip. Estimated CO2 is about 12.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Clear around Middletown and Partly Cloudy near Mercerville.
Stop Ideas Near West Freehold
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 West Freehold.
Princeton Junction station
New Brunswick station
Metropark station
Trenton Transit Center
Flight Path Map
This map shows the direct air route between Middletown and Mercerville. Straight-line distance: 31.91 mi (51.35 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 Mercerville
Mercerville is a place in New Jersey, United States.
| Population | 0 |
| Coordinates | 40.2370500, -74.6865500 |
| Altitude | 27 |
| Country | United States |
End: Mercerville (-74.68655, 40.23705)
Estimated Travel Time
Distance: 64 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 19m |
| 40 mph (64.37 km/h) | 00h 59m |
| 50 mph (80.47 km/h) | 00h 47m |
| 60 mph (96.56 km/h) | 00h 39m |
| 70 mph (112.65 km/h) | 00h 34m |
| 80 mph (129 km/h) | 00h 29m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.08 | $5.75 | $11.50 |
| Mid-grade | $4.71 | $6.64 | $13.28 |
| Premium | $5.02 | $7.08 | $14.16 |
| Diesel | $6.31 | $8.90 | $17.81 |
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 · Nov 07, 2026