How far is Somerset, NJ from Allentown, NJ?
The driving distance from Somerset, NJ to Allentown, NJ is about 26.6 miles (42.8 km), with a travel time of about 00h 46m by car.
- The straight-line flight distance is about 22.7 miles (36.5 km).
- For a round trip, plan for roughly 01h 33m 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.
Township of New Jersey
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Somerset and Allentown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Somerset and Allentown.
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1
Start on West Point Avenue
717 ft · 33 sec · West Point Avenue
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2
Turn right onto Abbott Road
80 m · 13 sec · Abbott Road
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3
Turn right onto Arden Street
757 ft · 35 sec · Arden Street
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4
Turn right onto Hillcrest Avenue
158 m · 27 sec · Hillcrest Avenue
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5
Turn left onto Holly Street
1608 ft · 1 min · Holly Street
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6
At the end of the road, turn right onto Franklin Boulevard
1.4 km · 2 min · Franklin Boulevard
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7
Turn right onto Somerset Street
1.3 km · 2 min · Somerset Street
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8
Turn left onto How Lane
1.1 km · 1 min · How Lane
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9
Turn right onto Jersey Avenue
1.3 mi · 3 min · Jersey Avenue
-
10
Take the ramp left
35 m · 3 sec
-
11
Continue straight
526 ft · 15 sec
-
12
Merge slight left
1.8 mi · 3 min
-
13
Continue straight
1 mi · 1 min
-
14
Take the exit slight right
127 m · 10 sec
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15
Continue on Deans Lane
1.4 mi · 3 min · Deans Lane
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16
At the end of the road, turn left onto Georges Road
568 ft · 17 sec · Georges Road
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17
Turn right onto Deans-Rhode Hall Road
2124 ft · 49 sec · Deans-Rhode Hall Road
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18
Turn right
7.1 mi · 10 min
-
19
Continue straight
1.2 mi · 2 min
-
20
Turn left onto Old Cranbury Road
2039 ft · 1 min · Old Cranbury Road
-
21
Turn right onto North Main Street
1.6 km · 3 min · North Main Street
-
22
Continue on Mercer Street
880 ft · 37 sec · Mercer Street
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23
Turn sharp left onto West Ward Street
157 m · 13 sec · West Ward Street
-
24
Turn right onto South Main Street
1.1 km · 1 min · South Main Street
-
25
Continue on Old York Road
5.8 mi · 9 min · Old York Road
-
26
Continue on North Main Street
1.4 km · 2 min · North Main Street
-
27
Turn sharp left onto Waker Street
45 m · 3 sec · Waker Street
-
28
Turn left onto Maiden Lane
6 m · 1 sec · Maiden Lane
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29
Arrive at your destination
0 m · 1 sec · Maiden Lane
Car Route Details
A richer read on the saved driving route between Somerset and Allentown.
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.
Longest stretch
Turn right
7.1 mi · 00h 10m
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 Somerset and Sunny near Allentown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Somerset to Allentown?
The road trip is about 26.6 miles (42.8 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?
Cranbury is a useful midpoint, sitting about 13.3 miles from Somerset and 13.3 miles from Allentown.
How much longer is the road route than the straight-line distance?
The direct path is about 22.7 miles (36.5 km), while the road route adds roughly 3.9 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 EDT. If you want a more comfortable same-day return, try to leave by 4:56 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.84 one way or $7.68 round trip. Estimated CO2 is about 8.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Somerset and Sunny near Allentown.
Stop Ideas Near Cranbury
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 Cranbury.
Princeton Junction station
New Brunswick station
Trenton Transit Center
Metropark station
Flight Path Map
This map shows the direct air route between Somerset and Allentown. Straight-line distance: 22.65 mi (36.45 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 Allentown
Borough of New Jersey
| Population | 1,761 |
| Coordinates | 40.1778900, -74.5834900 |
| Altitude | 25 |
| Country | United States |
End: Allentown (-74.58349, 40.17789)
Estimated Travel Time
Distance: 43 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 53m |
| 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 | $3.84 | $7.68 |
| Mid-grade | $4.60 | $4.32 | $8.65 |
| Premium | $4.95 | $4.66 | $9.31 |
| Diesel | $5.98 | $5.62 | $11.24 |
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 · May 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.