How far is Smithtown, NY from Rensselaer, NY?
The driving distance from Smithtown, NY to Rensselaer, NY is about 186 miles (299.3 km), with a travel time of about 03h 55m by car.
- The straight-line flight distance is about 126.6 miles (203.7 km).
- For a round trip, plan for roughly 07h 50m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 55m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Town in Orange County, New York
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Smithtown and Rensselaer.
Turn-by-Turn Driving Directions
Step-by-step road directions between Smithtown and Rensselaer.
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1
Start on West Main Street
2964 ft · 52 sec · West Main Street
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2
Keep slight left to continue on West Main Street
55 m · 5 sec · West Main Street
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3
Continue on Jericho Turnpike
4 mi · 6 min · Jericho Turnpike
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4
Take the ramp slight right toward SM South: Bay Shore
1110 ft · 27 sec
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5
Merge slight left onto Sunken Meadow State Parkway
1.9 mi · 2 min · Sunken Meadow State Parkway
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6
Continue on Sagtikos State Parkway
1.2 km · 50 sec · Sagtikos State Parkway
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7
Take the exit slight right toward I 495 West: New York
688 ft · 17 sec
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8
Keep slight left to continue on I 495 West: New York
955 ft · 23 sec
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9
Turn straight onto LIE North Service Road
1987 ft · 34 sec · LIE North Service Road
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10
Turn straight onto North Service Road
770 ft · 14 sec · North Service Road
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11
Take the ramp slight left toward I 495 West: New York
879 ft · 22 sec
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12
Merge slight left onto Long Island Expressway
24.8 mi · 34 min · Long Island Expressway
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13
Take the exit slight right toward Cross Island Parkway, Whitestone Bridge, Kennedy Airport
1267 ft · 27 sec
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14
Keep slight right to continue on Cross Island Parkway North, Whitestone Bridge
1604 ft · 38 sec
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15
Merge slight left onto Cross Island Parkway
3.1 mi · 5 min · Cross Island Parkway
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16
Take the exit slight right toward I 295 North: Throgs Neck Bridge, Bronx, New England
2905 ft · 1 min
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17
Merge slight left onto Throgs Neck Bridge
1.8 mi · 3 min · Throgs Neck Bridge
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18
Continue on Throgs Neck Expressway
1.1 km · 1 min · Throgs Neck Expressway
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19
Keep slight left to continue on Cross Bronx Expressway
6.6 mi · 9 min · Cross Bronx Expressway
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20
Keep slight left to continue on Trans-Manhattan Expressway
1.1 km · 1 min · Trans-Manhattan Expressway
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21
Continue on George Washington Bridge (upper level)
3167 ft · 60 sec · George Washington Bridge (upper level)
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22
Continue straight
2659 ft · 48 sec
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23
Keep slight left
3214 ft · 39 sec
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24
Keep slight left
559 ft · 9 sec
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25
Take the exit slight right toward I 95 South, NJTP South: Hackensack
1270 ft · 23 sec
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26
Keep slight right to continue on NJ 4 West: Paramus
970 ft · 24 sec
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27
Merge slight right
6.7 mi · 9 min
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28
Take the exit straight toward GSP South, NJ 17 South, GSP North, NJ 17 North: Grand State Plaza, Newark, Mahwah
951 ft · 26 sec
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29
Keep slight right to continue on NJ 17 North: Mahwah
1302 ft · 37 sec
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30
Merge slight left
3.3 mi · 4 min
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31
Continue straight
7.3 mi · 10 min
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32
Continue straight
1.2 km · 50 sec
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33
Continue straight
3.3 mi · 4 min
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34
Continue straight
877 ft · 11 sec
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35
Keep slight left to continue on I 87 North, NY 17 North, New York State Thruway North: Albany
111.7 mi · 2 hr 9 min
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36
Take the exit slight right toward I 787, US 9W: Albany, Troy
1351 ft · 50 sec
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37
Continue straight
1.4 mi · 2 min
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38
Take the exit slight right toward US 9 South, US 20 East: Rensselaer, Empire Plaza
1022 ft · 29 sec
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39
Keep slight left to continue on US 9 South, US 20 East: Rensselaer, Rail Station
1214 ft · 35 sec
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40
Turn straight
1778 ft · 53 sec
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41
Keep slight right to continue on Broadway Rail Station
1304 ft · 1 min
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42
Turn left onto Broadway
636 ft · 22 sec · Broadway
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43
Turn right
36 m · 10 sec
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44
Turn right
63 m · 17 sec
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45
Turn right
10 m · 2 sec
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46
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Smithtown and Rensselaer.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 87 North
Keep slight left to continue on I 87 North, NY 17 North, New York State Thruway North: Albany
112 mi · 02h 09m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny leaving Smithtown and Sunny near Rensselaer.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Smithtown to Rensselaer?
The road trip is about 186 miles (299.3 km) and usually takes 03h 55m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Woodbury is a useful midpoint, sitting about 92.9 miles from Smithtown and 93.1 miles from Rensselaer.
How much longer is the road route than the straight-line distance?
The direct path is about 126.6 miles (203.7 km), while the road route adds roughly 59.4 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 9:10 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $29.18 one way or $58.36 round trip. Estimated CO2 is about 58.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Smithtown and Sunny near Rensselaer.
Stop Ideas Near Woodbury
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Woodbury.
Croton–Harmon station
Poughkeepsie station
Yonkers station
New Rochelle station
Flight Path Map
This map shows the direct air route between Smithtown and Rensselaer. Straight-line distance: 126.57 mi (203.69 km).
#1 Smithtown
Census-designated place in Suffolk County, New York
| Population | 110,876 |
| Coordinates | 40.8559300, -73.2006700 |
| Altitude | 18 |
| Country | United States |
#2 Rensselaer
City in Indiana
| Population | 9,142 |
| Coordinates | 42.6425800, -73.7429000 |
| Altitude | 5 |
| Country | United States |
End: Rensselaer (-73.7429, 42.64258)
Estimated Travel Time
Distance: 299 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 11m |
| 40 mph (64.37 km/h) | 04h 39m |
| 50 mph (80.47 km/h) | 03h 43m |
| 60 mph (96.56 km/h) | 03h 06m |
| 70 mph (112.65 km/h) | 02h 39m |
| 80 mph (129 km/h) | 02h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.45 | $29.18 | $58.36 |
| Mid-grade | $4.98 | $32.68 | $65.36 |
| Premium | $5.38 | $35.31 | $70.61 |
| Diesel | $6.51 | $42.70 | $85.40 |
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