Origin
Mount Sinai, NY
Evening in Mount Sinai on Friday
Local time
6:15 PM
EDT
Current temp
54°F
Unavailable
Live forecast
Trip from Mount Sinai, NY to Brookhaven, NY
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 17, 2026 · Editorial standards
Drive Time
26m
Distance
15.9 mi
26 km
Drive Score
7/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$3
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 25m
★
6 AM
0h 27m
8 AM
0h 31m
10 AM
0h 28m
12 PM
0h 28m
3 PM
0h 29m
5 PM
0h 31m
8 PM
0h 25m
★
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Mount Sinai, NY
Wikimedia Commons
Trip Overview
The drive from Mount Sinai, NY to Brookhaven, NY covers 15.9 miles and takes about 26m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Horseblock Road, Route 112, Patchogue-Mount Sinai Road for much of the mileage, and the overall profile is turn-heavy local drive. The longest uninterrupted segment is about 5.3 miles on Horseblock Road. At current regular gas prices, budget about $2.62 one way before food or hotel costs.
About the Cities
Starting in Mount Sinai, NY
Full guide →Mt. Sinai is a small town on the east coast of Long Island in New York, bordering the north shore of the Long Island Sound.
Arriving 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
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 26m. Total distance: 15.9 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
26m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (26%). Some complex stretches to watch for.
Scenic Drive
Turn-heavy local drive route profile with national parks nearby.
Drive Character
Expect a 26m drive with frequent turns across 15.9 miles of local and secondary roads.
This route has more turning and local-road decision points than a simple highway run.
There are about 11 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Horseblock Road is the longest continuous segment at about 5.3 miles.
How Hard Is This Drive?
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. You will hit about 9 points where you need to pay attention to lane position or signs. The trickiest moment comes around 1.3 miles in near CR 83 / Patchogue-Mount Sinai Road.
Driving Effort
5/10
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 15.9 miles you will encounter 9 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 1.3 miles (CR 83 / Patchogue-Mount Sinai Road): Lane positioning matters here; at 5.1 miles (NY 112 / Route 112): Lane positioning matters here; at 9.3 miles (CR 16 / Horseblock Road): Lane positioning matters here.
Critical Maneuvers
5 of 9 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
1.3 mi into trip
|
~3m in
|
CR 83 / Patchogue-Mount Sinai Road
Turn right onto CR 83 / Patchogue-Mount Sinai Road
Lane positioning matters here
Use the left / straight lanes.
5
5.1 mi into trip
|
~8m in
|
NY 112 / Route 112
Turn left onto NY 112 / Route 112
Lane positioning matters here
Use the left lane.
5
9.3 mi into trip
|
~16m in
|
CR 16 / Horseblock Road
Turn left onto CR 16 / Horseblock Road
Lane positioning matters here
Use the left lane.
6
14.6 mi into trip
|
~24m in
|
CR 80 / Montauk Highway
At end of road, turn right onto CR 80 / Montauk Highway
Lane positioning matters here
Use the right lane.
5
15.5 mi into trip
|
~26m in
|
CR 36 / South Country Road
Turn left onto CR 36 / South Country Road
Lane positioning matters here
Use the left lane.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Horseblock Road | 5.3 mi | 8m |
| Route 112 | 4.2 mi | 7m |
| Patchogue-Mount Sinai Road | 3.8 mi | 5m |
| Mount Sinai-Coram Road | 1.2 mi | 2m |
| Montauk Highway | 0.9 mi | 1m |
| South Country Road | 0.4 mi | <1m |
| NY 25A | 0.1 mi | <1m |
| North Country Road | <0.1 mi | <1m |
Longest stretch:
Horseblock Road
— 5.3 mi, about 8m
Turn-by-Turn Driving Directions
Step-by-step road directions between Mount Sinai, NY and Brookhaven, NY.
1
Start on Shore Road
31 ft
·
7 sec
·
Shore Road
2
Turn left onto Mount Sinai-Coram Road
0.4 mi
·
1 min
·
Mount Sinai-Coram Road
3
Turn right onto North Country Road
61 ft
·
6 sec
·
North Country Road
4
Turn left onto Mount Sinai-Coram Road
0.8 mi
·
1 min
·
Mount Sinai-Coram Road
5
Turn left onto NY 25A
0.1 mi
·
13 sec
·
NY 25A
6
Turn right onto CR 83
3.8 mi
·
5 min
·
Patchogue-Mount Sinai Road
Use the left / straight lanes.
7
Turn left onto NY 112
4.2 mi
·
7 min
·
Route 112
Use the left lane.
8
Turn left onto CR 16
5.3 mi
·
8 min
·
Horseblock Road
Use the left lane.
9
At end of road, turn right onto CR 80
0.9 mi
·
1 min
·
Montauk Highway
Use the right lane.
10
Turn left onto CR 36
0.4 mi
·
50 sec
·
South Country Road
Use the left lane.
11
Arrive at destination
CR 36
Fuel & Cost
Regular Gas
$2.62 one way
$5.23 round trip
$4.18/gal
25.4 MPG avg
6 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.52 | $2.83 | $5.66 |
| premium | $4.92 | $3.08 | $6.16 |
| diesel | $5.61 | $3.51 | $7.02 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$3
Estimated CO2 emission: 5.6 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $2 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 4.8 | 0 | $1.67 | $0.76 |
| Efficient EV | 4 | 0 | $1.39 | $0.64 |
| EV Truck/SUV | 6.4 | 0 | $2.23 | $1.02 |
Gas CO2
6 kg
EV CO2
2 kg (67% 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
Brookhaven, NY
Evening in Brookhaven on Friday
Local time
6:15 PM
EDT
Current temp
43°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
11 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
26m 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.
Frequently Asked Questions
The drive from Mount Sinai, NY to Brookhaven, NY covers 15.9 miles and takes about 26m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Horseblock Road, Route 112, Patchogue-Mount Sinai Road. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 7.9 miles from Mount Sinai, NY. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $2.62 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This drive requires moderate attention. Across 15.9 miles you will encounter 9 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
The main spots that need attention: at 1.3 miles (CR 83 / Patchogue-Mount Sinai Road): Lane positioning matters here; at 5.1 miles (NY 112 / Route 112): Lane positioning matters here; at 9.3 miles (CR 16 / Horseblock Road): Lane positioning matters here.
The route from Mount Sinai, NY to Brookhaven, NY does not surface many named destination signs beyond the main corridor.
Yes. Nearby national parks include Fire Island National Seashore.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
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