Last recalculated Apr 17, 2026
Drive Time
1h 4m
Distance
39.8 mi
64 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$7
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Middletown, NJ
Wikimedia Commons
Mercerville, NJ
Wikimedia Commons
The drive from Middletown, NJ to Mercerville, NJ covers 39.8 miles and takes about 1h 4m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Colts Neck Road, Freehold Bypass, Old Trenton Road for much of the mileage, and the overall profile is turn-heavy local drive. The longest uninterrupted segment is about 10.8 miles on Colts Neck Road. At current regular gas prices, budget about $6.60 one way before food or hotel costs.
Weekend Trip
Doable as a same-day drive at 1h 4m. Total distance: 39.8 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 4m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (0%). Some complex stretches to watch for.
Scenic Drive
Turn-heavy local drive route profile.
Expect a 1h 4m drive with frequent turns across 39.8 miles of local and secondary roads.
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. You will hit about 7 points where you need to pay attention to lane position or signs. The trickiest moment comes around 17.4 miles in.
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 39.8 miles you will encounter 7 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 17.4 miles: Multiple destination signs - pick the right one; at 28.4 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 28.7 miles (NJ 133 / Hightstown Bypass): Merge point - match speed before joining. Lane positioning matters here.
These are the spots where you need to pay the most attention. Preview them before you drive.
Take the ramp toward NJ 33 West: Hightstown, Trenton
Multiple destination signs - pick the right one
Take the exit toward NJ 133 West: East Windsor, Princeton
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Merge onto NJ 133 / Hightstown Bypass
Merge point - match speed before joining. Lane positioning matters here
Take the exit toward CR 571 West: Princeton
Exit ramp - move to the correct lane early. Lane positioning matters here
Turn left onto CR 535 / Old Trenton Road
Lane positioning matters here
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Middletown, NJ and Mercerville, NJ, road signs point toward Trenton, Princeton and Cr 571 West: Princeton.
Trenton
Princeton
Cr 571 West: Princeton
| Road | Distance | Duration |
|---|---|---|
| Colts Neck Road | 10.8 mi | 17m |
| Freehold Bypass | 10.8 mi | 15m |
| Old Trenton Road | 5.5 mi | 9m |
| Middletown Lincroft Road | 4.4 mi | 7m |
| Hightstown Bypass | 3.2 mi | 4m |
| Edinburg Road | 1.9 mi | 3m |
| Swimming River Road | 1.8 mi | 3m |
| Church Street | 0.3 mi | <1m |
Step-by-step road directions between Middletown, NJ and Mercerville, NJ.
Start on CR 50
Turn left onto CR 50
Continue on CR 50
Continue on CR 50
Turn right onto CR 537
Take the ramp
Merge onto NJ 33
Take the exit
Merge onto NJ 133
Take the exit
Turn slight right onto CR 571
Turn left onto CR 535
Continue on CR 535
Arrive at destination
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 19.9 mi from Middletown, NJ · 32m into the drive
Mid-route town
Meal stop
20 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 39.8 miles helps settle the day before fatigue starts building.
The midpoint is around 19.9 miles from Middletown, NJ, which is a good place for a longer meal and fuel stop.
The final approach into Mercerville, NJ usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Regular Gas
$6.60 one way
$13.20 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.61 | $7.23 | $14.45 |
| premium | $4.93 | $7.72 | $15.44 |
| diesel | $5.61 | $8.79 | $17.57 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$7
Estimated CO2 emission: 13.9 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $4 in charging · 0 stops · 64% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 11.9 | 0 | $4.18 | $1.91 |
| Efficient EV | 10 | 0 | $3.48 | $1.59 |
| EV Truck/SUV | 15.9 | 0 | $5.57 | $2.55 |
Gas CO2
14 kg
EV CO2
5 kg (64% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Current conditions at both ends of the drive.
Origin
Night in Middletown on Thursday
Local time
10:51 PM
EDT
Current temp
88°F
Mostly Sunny
Destination
Night in Mercerville on Thursday
Local time
10:51 PM
EDT
Current temp
72°F
Unavailable
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
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