How far is Edison, NJ from Mendham, NJ?
The driving distance from Edison, NJ to Mendham, NJ is about 31.6 miles (50.9 km), with a travel time of about 00h 46m by car.
- The straight-line flight distance is about 20.3 miles (32.7 km).
- For a round trip, plan for roughly 01h 32m 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 00h 46m.
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 Somerset County, New Jersey
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 Edison and Mendham.
Turn-by-Turn Driving Directions
Step-by-step road directions between Edison and Mendham.
-
1
Start on the route
53 m · 13 sec
-
2
Continue on Reed Street
106 m · 20 sec · Reed Street
-
3
Turn left onto Central Avenue
105 m · 23 sec · Central Avenue
-
4
Turn left onto Plainfield Avenue
1.4 km · 2 min · Plainfield Avenue
-
5
Continue on Stelton Road
2.2 mi · 4 min · Stelton Road
-
6
Take the ramp slight right toward I 287 North
1373 ft · 29 sec
-
7
Merge slight left
11.9 mi · 14 min
-
8
Keep slight right to continue on I 78 East: New York City
8.7 mi · 10 min
-
9
Take the exit slight right toward CR 525 North: Mount Airy Road North, Bernardsville
1382 ft · 34 sec
-
10
Turn straight onto Mount Airy Road
1479 ft · 35 sec · Mount Airy Road
-
11
Continue on Mount Airy Road
2 mi · 4 min · Mount Airy Road
-
12
Continue on Anderson Hill Road
1.6 km · 2 min · Anderson Hill Road
-
13
Continue on Mendham Road
1.6 mi · 3 min · Mendham Road
-
14
Continue on Bernardsville Road
1.4 km · 2 min · Bernardsville Road
-
15
Continue on Bernardsville Road
43 m · 3 sec · Bernardsville Road
-
16
Continue on Hilltop Road
2615 ft · 52 sec · Hilltop Road
-
17
Keep slight left to continue on Hilltop Road
1.6 km · 2 min · Hilltop Road
-
18
Turn right onto Mendham Road
25 m · 1 sec · Mendham Road
-
19
Arrive at your destination
0 m · 1 sec · Mendham Road
Car Route Details
A richer read on the saved driving route between Edison 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.
I 287 North
Merge slight left
11.9 mi · 00h 14m
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 Edison and Sunny near Mendham.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Edison to Mendham?
The road trip is about 31.6 miles (50.9 km) and usually takes 00h 46m 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?
Somerville is a useful midpoint, sitting about 15.8 miles from Edison and 15.8 miles from Mendham.
How much longer is the road route than the straight-line distance?
The direct path is about 20.3 miles (32.7 km), while the road route adds roughly 11.3 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 4:58 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.58 one way or $9.15 round trip. Estimated CO2 is about 10 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Edison and Sunny near Mendham.
Stop Ideas Near Somerville
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 Somerville.
New Brunswick station
Metropark station
Princeton Junction station
Newark Liberty International Airport
Flight Path Map
This map shows the direct air route between Edison and Mendham. Straight-line distance: 20.34 mi (32.73 km).
#1 Edison
Township in Middlesex County, New Jersey, United States
| Population | 98,721 |
| Coordinates | 40.5187200, -74.4121000 |
| Altitude | 27 |
| 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: 51 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 03m |
| 40 mph (64.37 km/h) | 00h 47m |
| 50 mph (80.47 km/h) | 00h 37m |
| 60 mph (96.56 km/h) | 00h 31m |
| 70 mph (112.65 km/h) | 00h 27m |
| 80 mph (129 km/h) | 00h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $4.58 | $9.15 |
| Mid-grade | $4.60 | $5.15 | $10.30 |
| Premium | $4.95 | $5.55 | $11.10 |
| Diesel | $5.98 | $6.70 | $13.40 |
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.