How far is Lewisboro, NY from Smithtown, NY?
The driving distance from Lewisboro, NY to Smithtown, NY is about 84.7 miles (136.3 km), with a travel time of about 01h 44m by car.
- The straight-line flight distance is about 31.3 miles (50.4 km).
- For a round trip, plan for roughly 03h 29m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 01h 44m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
The fourth most populous borough of New York City.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Cloudy
Driving Route Map
The map below follows the saved road route between Lewisboro and Smithtown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lewisboro and Smithtown.
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1
Start on Shady Lane
45 m · 13 sec · Shady Lane
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2
Turn left onto Smith Ridge Road
6.1 mi · 11 min · Smith Ridge Road
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3
Continue on Smith Ridge Road
46 m · 8 sec · Smith Ridge Road
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4
Turn left onto Forest Street
2256 ft · 43 sec · Forest Street
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5
Turn right onto Locust Avenue
153 m · 15 sec · Locust Avenue
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6
Turn left onto Main Street
1035 ft · 24 sec · Main Street
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7
Turn right onto Cherry Street
103 m · 13 sec · Cherry Street
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8
Turn left onto South Avenue
2.3 mi · 4 min · South Avenue
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9
Continue on Mansfield Avenue
1 mi · 2 min · Mansfield Avenue
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10
Turn right onto Middlesex Road
1243 ft · 31 sec · Middlesex Road
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11
Continue on Middlesex Road
1.7 mi · 3 min · Middlesex Road
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12
Turn left onto Noroton Avenue
3277 ft · 1 min · Noroton Avenue
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13
Turn right onto Ledge Road
110 m · 11 sec · Ledge Road
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14
Continue on I 95 South: New York City
1151 ft · 28 sec
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15
Merge slight left
10.9 mi · 15 min
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16
Keep slight left to continue on New England Thruway
14.3 mi · 20 min · New England Thruway
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17
Continue on Bruckner Expressway
1.3 mi · 2 min · Bruckner Expressway
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18
Keep slight left to continue on Throgs Neck Expressway
2.2 mi · 3 min · Throgs Neck Expressway
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19
Continue on Throgs Neck Bridge
2 mi · 3 min · Throgs Neck Bridge
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20
Continue on Clearview Expressway
3.2 mi · 3 min · Clearview Expressway
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21
Take the exit slight right toward I 495: Manhattan, Eastern Long Island
810 ft · 28 sec
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22
Keep slight left to continue on I 495 East: Long Island Expressway, Eastern Long Island
1448 ft · 39 sec
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23
Merge slight left onto Long Island Expressway
14.2 mi · 20 min · Long Island Expressway
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24
Take the exit slight right toward N East: Hauppauge
2144 ft · 53 sec
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25
Merge slight left onto Northern State Parkway
13.7 mi · 19 min · Northern State Parkway
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26
Take the exit slight right toward SM North: Kings Park
1052 ft · 26 sec
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27
Merge slight left onto Sagtikos State Parkway
152 m · 6 sec · Sagtikos State Parkway
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28
Continue on Sunken Meadow State Parkway
1.7 mi · 2 min · Sunken Meadow State Parkway
-
29
Take the exit slight right toward NY 25 East: Jericho Turnpike East, Smithtown
1170 ft · 31 sec
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30
Turn slight right onto Jericho Turnpike
3.9 mi · 6 min · Jericho Turnpike
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31
Continue on West Main Street
3144 ft · 55 sec · West Main Street
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32
Arrive at your destination
0 m · 1 sec · West Main Street
Car Route Details
A richer read on the saved driving route between Lewisboro and Smithtown.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
New England Thruway
Keep slight left to continue on New England Thruway
14.3 mi · 00h 20m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving Lewisboro and Partly Cloudy near Smithtown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lewisboro to Smithtown?
The road trip is about 84.7 miles (136.3 km) and usually takes 01h 44m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
The Bronx is a useful midpoint, sitting about 41.1 miles from Lewisboro and 43.6 miles from Smithtown.
How much longer is the road route than the straight-line distance?
The direct path is about 31.3 miles (50.4 km), while the road route adds roughly 53.4 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 3:00 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.30 one way or $26.60 round trip. Estimated CO2 is about 26.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Lewisboro and Partly Cloudy near Smithtown.
Stop Ideas Near The Bronx
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Radio City Music Hall
The Yard: City Hall Park NYC
CITY HALL LOBBY
Town Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to The Bronx.
Yonkers station
New Rochelle station
Pennsylvania Station
Pennsylvania Station
Flight Path Map
This map shows the direct air route between Lewisboro and Smithtown. Straight-line distance: 31.29 mi (50.35 km).
#1 Lewisboro
City in Westchester County, New York, United States of America
| Population | 12,417 |
| Coordinates | 41.2381500, -73.5226200 |
| Altitude | 222 |
| Country | United States |
#2 Smithtown
Census-designated place in Suffolk County, New York
| Population | 110,876 |
| Coordinates | 40.8559300, -73.2006700 |
| Altitude | 18 |
| Country | United States |
End: West Main Street (-73.200729, 40.855811)
Estimated Travel Time
Distance: 136 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 49m |
| 40 mph (64.37 km/h) | 02h 07m |
| 50 mph (80.47 km/h) | 01h 41m |
| 60 mph (96.56 km/h) | 01h 24m |
| 70 mph (112.65 km/h) | 01h 12m |
| 80 mph (129 km/h) | 01h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.45 | $13.30 | $26.60 |
| Mid-grade | $4.98 | $14.90 | $29.79 |
| Premium | $5.38 | $16.09 | $32.18 |
| Diesel | $6.51 | $19.46 | $38.92 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in New York · Oct 15, 2026