Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards
Drive 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
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Smithtown, NY
Wikimedia Commons
Traveling between Brookhaven and Smithtown, NY, is a quick 19.6-mile excursion that typically takes about 29 minutes to complete. Because of the short distance, this trip is perfectly suited as a one-day outing, requiring no overnight stays. You can expect to spend approximately $3 on fuel for the journey, making it a very budget-friendly local commute. Your path will take you along a mix of Middle Country Road, Horseblock Road, and the Long Island Expressway. Both origin and destination are located within the Northeast region, keeping the travel environment consistent throughout the drive. This is a straightforward, practical route ideal for those looking to navigate between these two Long Island communities efficiently.
| 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
5 decision points cluster between mile 5.5 and 12.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
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
Regular Gas
$3.23 one way
$6.45 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.52 | $3.49 | $6.98 |
| premium | $4.92 | $3.80 | $7.60 |
| diesel | $5.61 | $4.33 | $8.65 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$3
Estimated CO2 emission: 6.9 kg one way. Prices: EIA weekly data, 2026-04-13.
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
Morning in Brookhaven on Tuesday
Local time
8:01 AM
EDT
Current temp
54°F
Sunny
Flood Warning
Flood Warning issued April 12 at 1:11AM EDT by NWS Binghamton NY
Destination
Morning in Smithtown on Tuesday
Local time
8:01 AM
EDT
Current temp
54°F
Unavailable
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
Both ends of the route are sitting at about the same temperature right now.
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.
Expect a turn-heavy local drive that demands your full attention as you transition between different road types. While roughly 16 miles are spent on the highway, the remainder of the trip involves navigating local roads. The longest uninterrupted stretch you will encounter is a 5.8-mile segment on Middle Country Road. You will find that the personality of the drive shifts from the faster pace of the Long Island Expressway to the more technical, stop-and-go feel of the local streets. Staying alert during these transitions is key, as the road character changes frequently over the course of the half-hour trip.
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.
Focused - busy navigation packed into a short drive
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 10 decision points packed into just 19.6 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 29m.
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.
Mostly flat terrain
Total Climb
214 ft
Total Descent
168 ft
Highest Point
164 ft
~10.6 mi in
Elevation Range
155 ft
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
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
Founded 1655
Brookhaven is the largest town in Suffolk County, part of Long Island, New York. With 485,000 residents (2020). It includes a patchwork of villages and other communities, and is the only town on the island to touch both the Long Island Sound and Atlantic Ocean. The villages of Belle Terre, Bellport, Lake Grove, Mastic Beach, Old Field, Patchogue, Poquott, Port Jefferson, and Shoreham are semi-autonomous, and provide their own services in addition to those provided by the town. Other prominent communities include Mount Sinai, Stony Brook, and Fire Island, a long and car-free resort island off the south coast of the town.
Top landmarks
Smithtown is a town of 117,000 people (2016) in Suffolk County, on Long Island, in New York. Smithtown is comprised of the villages and hamlets of Commack (in part, with the Town of Huntington), Fort Salonga (in part, with the Town of Huntington), Hauppauge (in part, with the Town of Islip), Head of the Harbor, Kings Park, Lake Ronkonkoma (in part with the Town of Brookhaven and Town of Islip), Nesconset, Nissequogue, Smithtown, St. James, & Village of the Branch.
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Weekend Trip
Doable as a same-day drive at 29m. Total distance: 19.6 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
29m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
Scenic Drive
Mostly surface roads route profile with national parks nearby.
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, USGS 3DEP for elevation, and NPS for national parks. See our methodology for refresh cadence and limitations.
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