How far is Middletown, NJ from Mendham, NJ?
The driving distance from Middletown, NJ to Mendham, NJ is about 51.4 miles (82.7 km), with a travel time of about 01h 12m by car.
- The straight-line flight distance is about 36.6 miles (58.9 km).
- For a round trip, plan for roughly 02h 24m 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 12m.
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.
Borough in New Jersey, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Middletown and Mendham.
Turn-by-Turn Driving Directions
Step-by-step road directions between Middletown and Mendham.
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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
14.2 mi · 21 min
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4
Take the exit slight right toward NJ 440: Raritan Center, Perth Amboy, Staten Island
1119 ft · 27 sec
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5
Keep slight left to continue on NJ 440 South: Raritan Center
128 m · 10 sec
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6
Keep slight right to continue on NJ 440 South: Raritan Center
1818 ft · 48 sec
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7
Keep slight left to continue on NJ 440
2621 ft · 1 min
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8
Merge slight right
1.7 mi · 2 min
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9
Continue straight
17.6 mi · 21 min
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10
Keep slight right to continue on I 78 East: New York City
8.7 mi · 10 min
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11
Take the exit slight right toward CR 525 North: Mount Airy Road North, Bernardsville
1382 ft · 34 sec
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12
Turn straight onto Mount Airy Road
1479 ft · 35 sec · Mount Airy Road
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13
Continue on Mount Airy Road
2 mi · 4 min · Mount Airy Road
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14
Continue on Anderson Hill Road
1.6 km · 2 min · Anderson Hill Road
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15
Continue on Mendham Road
1.6 mi · 3 min · Mendham Road
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16
Continue on Bernardsville Road
1.4 km · 2 min · Bernardsville Road
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17
Continue on Bernardsville Road
43 m · 3 sec · Bernardsville Road
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18
Continue on Hilltop Road
2615 ft · 52 sec · Hilltop Road
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19
Keep slight left to continue on Hilltop Road
1.6 km · 2 min · Hilltop Road
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20
Turn right onto Mendham Road
25 m · 1 sec · Mendham Road
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21
Arrive at your destination
0 m · 1 sec · Mendham Road
Car Route Details
A richer read on the saved driving route between Middletown and Mendham.
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 440
Continue straight
17.6 mi · 00h 21m
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.
Sunny leaving Middletown and Sunny near Mendham.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Middletown to Mendham?
The road trip is about 51.4 miles (82.7 km) and usually takes 01h 12m 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?
Middlesex is a useful midpoint, sitting about 25.7 miles from Middletown and 25.7 miles from Mendham.
How much longer is the road route than the straight-line distance?
The direct path is about 36.6 miles (58.9 km), while the road route adds roughly 14.8 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 4:06 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.40 one way or $14.79 round trip. Estimated CO2 is about 16.1 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Middletown and Sunny near Mendham.
Stop Ideas Near Middlesex
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 Middlesex.
New Brunswick station
Metropark station
Newark Liberty International Airport
Princeton Junction station
Flight Path Map
This map shows the direct air route between Middletown and Mendham. Straight-line distance: 36.6 mi (58.9 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 Mendham
Borough in Morris County, New Jersey
| Population | 4,836 |
| Coordinates | 40.7759300, -74.6007100 |
| Altitude | 187 |
| Country | United States |
End: Mendham (-74.60071, 40.77593)
Estimated Travel Time
Distance: 83 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 42m |
| 40 mph (64.37 km/h) | 01h 17m |
| 50 mph (80.47 km/h) | 01h 01m |
| 60 mph (96.56 km/h) | 00h 51m |
| 70 mph (112.65 km/h) | 00h 44m |
| 80 mph (129 km/h) | 00h 38m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $7.40 | $14.79 |
| Mid-grade | $4.60 | $8.32 | $16.65 |
| Premium | $4.95 | $8.97 | $17.93 |
| Diesel | $5.98 | $10.82 | $21.65 |
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 11, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.