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Create accountDrive Time
29m
Distance
19.6 mi
31 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$3
one way
EV Charging
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station data
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Smithtown, NY
Peter Olexa
The drive from Brookhaven, NY to Smithtown, NY covers 19.6 miles and takes about 29m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Middle Country Road, Horseblock Road, Long Island Expressway for much of the mileage, and the overall profile is turn-heavy local drive. The longest uninterrupted segment is about 5.8 miles on Middle Country Road. At current regular gas prices, budget about $3.19 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
0 planned breaks
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
9.8 miles from Brookhaven, NY
A natural place for your longest stop of the day , about 15m into the drive .
Expect a 29m drive with frequent turns across 19.6 miles of local and secondary roads.
Mostly flat terrain
Total Climb
214 ft
Total Descent
168 ft
Highest Point
164 ft
~10.6 mi in
Elevation Range
155 ft
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 5.5 miles in near Express Drive North.
Demanding - plan breaks and stay ahead of the key maneuvers
This is a demanding drive. With 10 significant decision points across 19.6 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 5.5 miles (Express Drive North): Lane positioning matters here; at 5.9 miles (I 495 / Long Island Expressway): Merge point - match speed before joining. Lane positioning matters here; at 9.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
These are the spots where you need to pay the most attention. Preview them before you drive.
Turn left onto Express Drive North
Lane positioning matters here
Merge onto I 495 / Long Island Expressway
Merge point - match speed before joining. Lane positioning matters here
Take the exit toward CR 97: Blue Point, Stony Brook, Nicolls Road
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Take the exit toward NY 25: Riverhead, Smithtown
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Keep slight left at fork toward NY 25 west: Riverhead, Smithtown
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Between Brookhaven, NY and Smithtown, NY, road signs point toward Cr 97: Blue Point, Stony Brook and Cr 97 North: Stony Brook.
Cr 97: Blue Point
Stony Brook
Cr 97 North: Stony Brook
| Road | Distance | Duration |
|---|---|---|
| Middle Country Road | 5.8 mi | 8m |
| Horseblock Road | 4.2 mi | 6m |
| Long Island Expressway | 3.2 mi | 4m |
| Nicolls Road | 2.6 mi | 3m |
| East Main Street | 1.3 mi | 2m |
| Montauk Highway | 0.8 mi | 1m |
| South Country Road | 0.4 mi | 1m |
| Express Drive North | 0.3 mi | <1m |
Step-by-step road directions between Brookhaven, NY and Smithtown, NY.
Start on CR 36
Continue on South Country Road
Turn straight onto CR 80
Turn left onto CR 16
Turn left onto Express Drive North
Take the ramp
Merge onto I 495
Take the exit
Turn straight onto Express Drive North
Take the ramp
Merge onto CR 97
Take the exit
Keep slight left at fork
Turn slight left onto NY 25
Continue on NY 25
Arrive at destination
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 19.6 miles or 29m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 9.8 miles or 15m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 25m
Traffic, exits, and arrival timing usually matter more near Smithtown, NY than in the middle of the route.
Open the route before leaving Brookhaven, NY so your first major turns are already loaded.
Leave with enough water and a charging cable within reach, not packed away.
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Brookhaven, NY
This is one driving day of about 19.6 miles and 29m.
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 9.8 mi from Brookhaven, NY · 15m into the drive
Mid-route town
Meal stop
10 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 19.6 miles helps settle the day before fatigue starts building.
The midpoint is around 9.8 miles from Brookhaven, NY, which is a good place for a longer meal and fuel stop.
The final approach into Smithtown, NY usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Smithtown, NY.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Regular Gas
$3.19 one way
$6.38 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.48 | $3.46 | $6.92 |
| premium | $4.88 | $3.77 | $7.54 |
| diesel | $5.64 | $4.35 | $8.71 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$3
Meals
$25–$50
Total
$28–$53
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 6.9 kg one way. Prices: EIA weekly data, 2026-04-06.
Driving Electric?
About $2 in charging · 0 stops · 71% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 5.9 | 0 | $2.06 | $0.94 |
| Efficient EV | 4.9 | 0 | $1.72 | $0.78 |
| EV Truck/SUV | 7.8 | 0 | $2.74 | $1.25 |
Gas CO2
7 kg
EV CO2
2 kg (71% 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
Afternoon in Brookhaven on Sunday
Local time
4:46 PM
EDT
Current temp
54°F
Sunny
Flood Warning
Flood Warning issued April 12 at 1:11AM EDT by NWS Binghamton NY
Destination
Afternoon in Smithtown on Sunday
Local time
4:46 PM
EDT
Current temp
52°F
Unavailable
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
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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