How far is Hamilton, NJ from South River, NJ?
The driving distance from Hamilton, NJ to South River, NJ is about 26.2 miles (42.2 km), with a travel time of about 00h 33m by car.
- The straight-line flight distance is about 23.1 miles (37.1 km).
- For a round trip, plan for roughly 01h 06m 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 33m.
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.
Census designated place
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 Hamilton and South River.
Turn-by-Turn Driving Directions
Step-by-step road directions between Hamilton and South River.
-
1
Start on Gully Road
47 m · 5 sec · Gully Road
-
2
Turn left onto Old Corlies Avenue
1136 ft · 34 sec · Old Corlies Avenue
-
3
Turn left
2.3 mi · 4 min
-
4
Continue straight
1013 ft · 17 sec
-
5
Enter the roundabout and take exit 1 toward the route
67 m · 4 sec
-
6
Exit the roundabout
1.6 km · 1 min
-
7
Take the exit slight right
3.6 mi · 6 min
-
8
Take the ramp slight right toward NJ 18 North: New Brunswick
1083 ft · 27 sec
-
9
Merge slight left
18.1 mi · 20 min
-
10
Take the exit slight right
74 m · 7 sec
-
11
Turn right onto Cranbury Road
868 ft · 18 sec · Cranbury Road
-
12
Continue on Main Street
2357 ft · 42 sec · Main Street
-
13
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Hamilton and South River.
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 18 North
Merge slight left
18.1 mi · 00h 20m
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 Hamilton and Mostly Sunny near South River.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Hamilton to South River?
The road trip is about 26.2 miles (42.2 km) and usually takes 00h 33m 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?
East Freehold is a useful midpoint, sitting about 13.1 miles from Hamilton and 13.1 miles from South River.
How much longer is the road route than the straight-line distance?
The direct path is about 23.1 miles (37.1 km), while the road route adds roughly 3.1 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 7:24 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.76 one way or $7.52 round trip. Estimated CO2 is about 8.2 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Hamilton and Mostly Sunny near South River.
Stop Ideas Near East 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 East Freehold.
New Brunswick station
Princeton Junction station
Metropark station
Trenton Transit Center
Flight Path Map
This map shows the direct air route between Hamilton and South River. Straight-line distance: 23.05 mi (37.1 km).
#1 Hamilton
Township in Mercer County, New Jersey, United States
| Population | 86,722 |
| Coordinates | 40.2070600, -74.0812500 |
| Altitude | 26 |
| Country | United States |
#2 South River
Borough in Middlesex County, New Jersey
| Population | 15,624 |
| Coordinates | 40.4464900, -74.3859800 |
| Altitude | 25 |
| Country | United States |
End: South River (-74.38598, 40.44649)
Estimated Travel Time
Distance: 42 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 52m |
| 40 mph (64.37 km/h) | 00h 39m |
| 50 mph (80.47 km/h) | 00h 31m |
| 60 mph (96.56 km/h) | 00h 26m |
| 70 mph (112.65 km/h) | 00h 22m |
| 80 mph (129 km/h) | 00h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $3.76 | $7.52 |
| Mid-grade | $4.60 | $4.23 | $8.46 |
| Premium | $4.95 | $4.56 | $9.12 |
| Diesel | $5.98 | $5.50 | $11.00 |
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.