Origin
Brookhaven, NY
Late night in Brookhaven on Sunday
Local time
5:56 AM
EDT
Current temp
43°F
Unavailable
Live forecast
Trip from Brookhaven, NY to Brentwood, NY
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
31m
Distance
21.2 mi
34 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$3
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 28m
★
6 AM
0h 31m
8 AM
0h 36m
10 AM
0h 33m
12 PM
0h 32m
3 PM
0h 33m
5 PM
0h 36m
8 PM
0h 29m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Brentwood, NY
Wikimedia Commons
Trip Overview
If you are planning a quick trip from Brookhaven to Brentwood, you are looking at a straightforward 21.2-mile journey that typically takes about 31 minutes. Since this is a short local excursion, you can easily complete it in a single day without needing an overnight stay. Your travel budget remains minimal, as you can expect to spend roughly $3 on fuel for the entire drive. The route stays entirely within the Northeast region of New York, moving through local corridors rather than cross-country stretches. It is a highly manageable drive that serves as a practical connection between these two Long Island communities.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Long Island Expressway | 12 mi | 15m |
| Horseblock Road | 4.2 mi | 6m |
| Joshuas Path | 1.5 mi | 2m |
| Suffolk Avenue | 1.4 mi | 2m |
| Montauk Highway | 0.8 mi | 1m |
| South Country Road | 0.4 mi | 1m |
| Express Drive North | 0.2 mi | <1m |
| Express Drive | 0.1 mi | <1m |
Longest stretch:
Long Island Expressway
— 12 mi, about 15m
Turn-by-Turn Driving Directions
Step-by-step road directions between Brookhaven, NY and Brentwood, NY.
1
Start on CR 36
0.4 mi
·
46 sec
·
South Country Road
2
Continue on South Country Road
354 ft
·
16 sec
·
South Country Road
3
Turn straight onto CR 80
0.8 mi
·
1 min
·
Montauk Highway
4
Turn left onto CR 16
4.2 mi
·
6 min
·
Horseblock Road
Use the left lane.
5
Turn left onto Express Drive North
0.2 mi
·
14 sec
·
Express Drive North
Use the left lane.
6
Take the ramp
0.2 mi
·
21 sec
Toward I 495 WEST: New York
7
Merge onto I 495
12 mi
·
15 min
·
Long Island Expressway
Use the straight / slight right lanes.
8
Take the exit
0.1 mi
·
15 sec
Exit 56
Toward NY 111: Islip, Smithtown
Use the straight / slight right lanes.
9
Turn straight onto Express Drive
0.1 mi
·
13 sec
·
Express Drive
10
Turn left onto NY 111
0.1 mi
·
17 sec
·
Wheeler Road
Use the straight lane.
11
Keep slight right at fork onto NY 111
1.5 mi
·
2 min
·
Joshuas Path
12
Turn right onto CR 100
1.4 mi
·
2 min
·
Suffolk Avenue
13
Arrive at destination
CR 100
Heads-up: tricky spots
5 of 85 decision points cluster between mile 1.2 and 18.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
1.2 mi into trip
|
~2m in
|
CR 16 / Horseblock Road
Turn left onto CR 16 / Horseblock Road
Lane positioning matters here
Use the left lane.
5
5.5 mi into trip
|
~8m in
|
Express Drive North
Turn left onto Express Drive North
Lane positioning matters here
Use the left lane.
5
5.9 mi into trip
|
~9m in
|
I 495 / Long Island Expressway
Merge onto I 495 / Long Island Expressway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
8
17.9 mi into trip
|
~25m in
Take the exit toward NY 111: Islip, Smithtown
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 56
Toward NY 111: Islip, Smithtown
5
18.2 mi into trip
|
~25m in
|
NY 111 / Wheeler Road
Turn left onto NY 111 / Wheeler Road
Lane positioning matters here
Use the straight lane.
Fuel & Cost
Regular Gas
$3.49 one way
$6.98 round trip
$4.18/gal
25.4 MPG avg
7 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.52 | $3.77 | $7.55 |
| premium | $4.92 | $4.11 | $8.22 |
| diesel | $5.61 | $4.68 | $9.36 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$3
Estimated CO2 emission: 7.4 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 | 6.4 | 0 | $2.23 | $1.02 |
| Efficient EV | 5.3 | 0 | $1.85 | $0.85 |
| EV Truck/SUV | 8.5 | 0 | $2.97 | $1.36 |
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.
Travel Intel
Current conditions at both ends of the drive.
Destination
Brentwood, NY
Late night in Brentwood on Sunday
Local time
5:56 AM
EDT
Current temp
44°F
Unavailable
Live forecast
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
1 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
31m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
What kind of drive is this?
Expect a turn-heavy local drive rather than a high-speed interstate experience, as this route has a highway share of 0%. You will spend your time navigating local roads including South Country Road, Montauk Highway, and Horseblock Road. Because these are surface streets, you should prepare for frequent turns and a slower, more deliberate pace compared to a major highway commute. There is no single long, uninterrupted stretch on this path, meaning you will need to remain engaged with traffic patterns and intersections throughout the duration of your trip. The personality of this drive is strictly local, prioritizing connectivity over speed.
57% highway, the rest on surface roads — varied driving throughout.
13 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 12 mi on Long Island Expressway.
How Hard Is This Drive?
6/10
This route mixes highway mileage with some local-road sections near the start or finish. You will hit about 8 points where you need to pay attention to lane position or signs. The trickiest moment comes around 1.2 miles in near CR 16 / Horseblock Road.
Driving Effort
6/10
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 21.2 miles you will encounter 8 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 1.2 miles (CR 16 / Horseblock Road): Lane positioning matters here; 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.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Brookhaven, NY to Brentwood, NY, road signs begin pointing toward Smithtown along the way.
Smithtown
17.9 mi in
|
~25m
About the Cities
Starting in Brookhaven, NY
Full guide →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
- • Wardenclyffe Tower — early experimental wireless transmission station designed and built by Nikola Te...
- • West Meadow Beach Historic District — historic district in the United States
- • Stony Brook Grist Mill — watermill
Arriving in Brentwood, NY
Full guide →City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 31m. Total distance: 21.2 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
31m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (57%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 12 miles on Long Island Expressway. The full list of main roads is in the Roads section above.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Brentwood, NY before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: at 1.2 miles (CR 16 / Horseblock Road): Lane positioning matters here; 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.
Yes. A round trip is manageable in a single day if you plan a break at Brentwood, NY before heading back.
How this page is built
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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