How far is Somerset, NJ from Mountainside, NJ?
The driving distance from Somerset, NJ to Mountainside, NJ is about 18.5 miles (29.8 km), with a travel time of about 00h 34m by car.
- The straight-line flight distance is about 13.9 miles (22.4 km).
- For a round trip, plan for roughly 01h 09m 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 34m.
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.
Borough in Middlesex County, New Jersey
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy then Slight Chance Rain Showers
Partly Sunny
Driving Route Map
The map below follows the saved road route between Somerset and Mountainside.
Turn-by-Turn Driving Directions
Step-by-step road directions between Somerset and Mountainside.
-
1
Start on West Point Avenue
717 ft · 37 sec · West Point Avenue
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2
Turn left onto Abbott Road
22 m · 5 sec · Abbott Road
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3
Turn right onto Concord Drive
939 ft · 46 sec · Concord Drive
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4
At the end of the road, turn left onto Indiana Road
127 m · 19 sec · Indiana Road
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5
Turn right onto Kingsbridge Road
124 m · 24 sec · Kingsbridge Road
-
6
Turn left onto Winston Drive
2947 ft · 2 min · Winston Drive
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7
At the end of the road, turn right onto John F Kennedy Boulevard
2653 ft · 1 min · John F Kennedy Boulevard
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8
At the end of the road, turn left onto Easton Avenue
2.3 mi · 4 min · Easton Avenue
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9
Continue on Easton Avenue
3012 ft · 1 min · Easton Avenue
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10
Continue on Main Street
1.2 mi · 2 min · Main Street
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11
Enter the roundabout and take exit 3 toward East Main Street
36 m · 3 sec · East Main Street
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12
Exit the roundabout onto East Main Street
1207 ft · 30 sec · East Main Street
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13
Turn right onto Mountain Avenue
1.2 mi · 3 min · Mountain Avenue
-
14
Take the ramp straight
1205 ft · 33 sec
-
15
Merge slight left
1.4 km · 1 min
-
16
Continue straight
8.6 mi · 13 min
-
17
Continue straight
1.4 mi · 2 min
-
18
Take the exit slight right
127 m · 17 sec
-
19
Turn left onto New Providence Road
802 ft · 26 sec · New Providence Road
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20
Turn right onto Birch Hill Road
93 m · 16 sec · Birch Hill Road
-
21
Turn right onto Watchung Avenue
56 m · 9 sec · Watchung Avenue
-
22
Turn left
532 ft · 39 sec
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23
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Somerset and Mountainside.
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.
Mountain Avenue
Continue straight
8.63 mi · 00h 13m
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 Cloudy then Slight Chance Rain Showers leaving Somerset and Partly Sunny near Mountainside.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Somerset to Mountainside?
The road trip is about 18.5 miles (29.8 km) and usually takes 00h 34m 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?
Dunellen is a useful midpoint, sitting about 9.3 miles from Somerset and 9.3 miles from Mountainside.
How much longer is the road route than the straight-line distance?
The direct path is about 13.9 miles (22.4 km), while the road route adds roughly 4.6 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 7:20 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.92 one way or $5.84 round trip. Estimated CO2 is about 5.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy then Slight Chance Rain Showers around Somerset and Partly Sunny near Mountainside.
Stop Ideas Near Dunellen
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 Dunellen.
New Brunswick station
Metropark station
Newark Liberty International Airport
Pennsylvania Station
Flight Path Map
This map shows the direct air route between Somerset and Mountainside. Straight-line distance: 13.89 mi (22.36 km).
#1 Somerset
This large community in Somerset County, New Jersey, is situated at an elevation of 92 feet.
| Population | 965,424 |
| Coordinates | 40.4976000, -74.4884900 |
| Altitude | 28 |
| Country | United States |
#2 Mountainside
Town
| Population | 6,876 |
| Coordinates | 40.6723200, -74.3573700 |
| Altitude | 46 |
| Country | United States |
End: Mountainside (-74.35737, 40.67232)
Estimated Travel Time
Distance: 30 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 37m |
| 40 mph (64.37 km/h) | 00h 27m |
| 50 mph (80.47 km/h) | 00h 22m |
| 60 mph (96.56 km/h) | 00h 18m |
| 70 mph (112.65 km/h) | 00h 15m |
| 80 mph (129 km/h) | 00h 13m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.43 | $2.92 | $5.84 |
| Mid-grade | $4.97 | $3.28 | $6.56 |
| Premium | $5.27 | $3.48 | $6.95 |
| Diesel | $6.46 | $4.26 | $8.53 |
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 · Sep 21, 2026