How far is Smithtown, NY from Duanesburg, NY?

The driving distance from Smithtown, NY to Duanesburg, NY is about 207 miles (333.1 km), with a travel time of about 04h 17m by car.

  • The straight-line flight distance is about 140.2 miles (225.6 km).
  • For a round trip, plan for roughly 08h 34m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
207 mi
04h 17m
Flight
140.19 mi
225.61 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Smithtown.

Flight Distance

Direct air line
140.19 mi
Kilometers
225.61 km
Flight Time
00h 16m

Driving Distance

Road route
207 mi
Kilometers
333.13 km
Drive Time
04h 17m

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 04h 17m.

Arrival Snapshot
Arrive in Duanesburg
Thu, Oct 15, 7:36 PM EDT
Return by in Smithtown
Thu, Oct 15, 11:53 PM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Smithtown
2026-10-15T15:19
Arrive Duanesburg
Thu, Oct 15, 7:36 PM EDT
Route Timing
04h 17m
One way by road
Best Departure Window
6:00 AM to 8:00 AM EDT
Leave early for more breathing room
Arrive between
10:17 AM to 12:17 PM EDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
8:26 AM EDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Smithtown
9:00 PM EDT
Early departure recommended

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.

Mid-route stop
Gardnertown
NY

Census-designated place in Orange County, New York

From Smithtown
103.3 mi
02h 08m
To Duanesburg
103.6 mi
02h 08m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
62°F
This Afternoon

Sunny

Starts
Thu, Oct 15 2:00 PM EDT
Wind
7 mph E
Destination
57°F
This Afternoon

Sunny

Starts
Thu, Oct 15 2:00 PM EDT
Wind
5 mph E

Driving Route Map

The map below follows the saved road route between Smithtown and Duanesburg.

Turn-by-Turn Driving Directions

Step-by-step road directions between Smithtown and Duanesburg.

  1. 1

    Start on West Main Street

    2964 ft · 52 sec · West Main Street

  2. 2

    Keep slight left to continue on West Main Street

    55 m · 5 sec · West Main Street

  3. 3

    Continue on Jericho Turnpike

    4 mi · 6 min · Jericho Turnpike

  4. 4

    Take the ramp slight right toward SM South: Bay Shore

    1110 ft · 27 sec

  5. 5

    Merge slight left onto Sunken Meadow State Parkway

    1.9 mi · 2 min · Sunken Meadow State Parkway

  6. 6

    Continue on Sagtikos State Parkway

    1.2 km · 50 sec · Sagtikos State Parkway

  7. 7

    Take the exit slight right toward I 495 West: New York

    688 ft · 17 sec

  8. 8

    Keep slight left to continue on I 495 West: New York

    955 ft · 23 sec

  9. 9

    Turn straight onto LIE North Service Road

    1987 ft · 34 sec · LIE North Service Road

  10. 10

    Turn straight onto North Service Road

    770 ft · 14 sec · North Service Road

  11. 11

    Take the ramp slight left toward I 495 West: New York

    879 ft · 22 sec

  12. 12

    Merge slight left onto Long Island Expressway

    24.8 mi · 34 min · Long Island Expressway

  13. 13

    Take the exit slight right toward Cross Island Parkway, Whitestone Bridge, Kennedy Airport

    1267 ft · 27 sec

  14. 14

    Keep slight right to continue on Cross Island Parkway North, Whitestone Bridge

    1604 ft · 38 sec

  15. 15

    Merge slight left onto Cross Island Parkway

    3.1 mi · 5 min · Cross Island Parkway

  16. 16

    Take the exit slight right toward I 295 North: Throgs Neck Bridge, Bronx, New England

    2905 ft · 1 min

  17. 17

    Merge slight left onto Throgs Neck Bridge

    1.8 mi · 3 min · Throgs Neck Bridge

  18. 18

    Continue on Throgs Neck Expressway

    1.1 km · 1 min · Throgs Neck Expressway

  19. 19

    Keep slight left to continue on Cross Bronx Expressway

    6.6 mi · 9 min · Cross Bronx Expressway

  20. 20

    Keep slight left to continue on Trans-Manhattan Expressway

    1.1 km · 1 min · Trans-Manhattan Expressway

  21. 21

    Continue on George Washington Bridge (upper level)

    3167 ft · 60 sec · George Washington Bridge (upper level)

  22. 22

    Continue straight

    2659 ft · 48 sec

  23. 23

    Keep slight left

    3214 ft · 39 sec

  24. 24

    Keep slight left

    559 ft · 9 sec

  25. 25

    Take the exit slight right toward I 95 South, NJTP South: Hackensack

    1270 ft · 23 sec

  26. 26

    Keep slight right to continue on NJ 4 West: Paramus

    970 ft · 24 sec

  27. 27

    Merge slight right

    6.7 mi · 9 min

  28. 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

  29. 29

    Keep slight right to continue on NJ 17 North: Mahwah

    1302 ft · 37 sec

  30. 30

    Merge slight left

    3.3 mi · 4 min

  31. 31

    Continue straight

    7.3 mi · 10 min

  32. 32

    Continue straight

    1.2 km · 50 sec

  33. 33

    Continue straight

    3.3 mi · 4 min

  34. 34

    Continue straight

    877 ft · 11 sec

  35. 35

    Keep slight left to continue on I 87 North, NY 17 North, New York State Thruway North: Albany

    117.5 mi · 2 hr 16 min

  36. 36

    Keep slight left to continue on New York State Thruway

    11 mi · 13 min · New York State Thruway

  37. 37

    Take the exit slight right toward I 88, NY 7: Schenectady, Binghamton

    1070 ft · 23 sec

  38. 38

    Continue straight

    2701 ft · 1 min

  39. 39

    Continue straight

    5 mi · 6 min

  40. 40

    Take the exit slight right toward US 20, NY 7: Duanesburg

    1280 ft · 22 sec

  41. 41

    Keep slight right

    620 ft · 19 sec

  42. 42

    At the end of the road, turn left onto Schenectady Duanesburg Road

    1.1 km · 1 min · Schenectady Duanesburg Road

  43. 43

    Continue on Duanesburg Road

    1388 ft · 38 sec · Duanesburg Road

  44. 44

    Turn right onto Depot Road

    29 m · 3 sec · Depot Road

  45. 45

    Arrive at your destination

    0 m · 1 sec · Depot Road

Car Route Details

A richer read on the saved driving route between Smithtown and Duanesburg.

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
45 steps
5 turns on the saved route
Ramps & Exits
15
6 merges, 9 ramps or exits
Navigation Density
21.7 / 100 mi
Decision points by distance
Main Roads
I 87 North
118 mi · 57%
Long Island Expressway
24.8 mi · 12%
NJ 17 North
15.1 mi · 7%
New York State Thruway
11 mi · 5%
NJ 4 West
6.85 mi · 3%
Cross Bronx Expressway
6.64 mi · 3%
Longest Stretch

I 87 North

Keep slight left to continue on I 87 North, NY 17 North, New York State Thruway North: Albany

118 mi · 02h 16m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
04h 17m
Long day trip
Same-Day Return
08h 34m
Round-trip wheel time
Road vs Air
+66.8 mi
140.2 mi direct line
Halfway Stop
Gardnertown
02h 08m from Smithtown
Leave By
8:26 AM EDT
Early departure recommended
Weather Watch

Sunny leaving Smithtown and Sunny near Duanesburg.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Smithtown to Duanesburg?

The road trip is about 207 miles (333.1 km) and usually takes 04h 17m 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?

Gardnertown is a useful midpoint, sitting about 103.3 miles from Smithtown and 103.6 miles from Duanesburg.

How much longer is the road route than the straight-line distance?

The direct path is about 140.2 miles (225.6 km), while the road route adds roughly 66.8 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 8:26 AM EDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $32.47 one way or $64.94 round trip. Estimated CO2 is about 64.9 kg one way.

What should you check before leaving?

Before you leave, expect Sunny around Smithtown and Sunny near Duanesburg.

Stop Ideas Near Gardnertown

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Gardnertown, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Gardnertown.

RAIL

Poughkeepsie station

22 mi away
41 Main St.
RAIL

Croton–Harmon station

41 mi away
1 Croton Point Avenue
RAIL

Rhinecliff–Kingston station

44 mi away
Hutton and Charles Sts.
RAIL

Yonkers station

68 mi away
5 Buena Vista Ave.

Flight Path Map

This map shows the direct air route between Smithtown and Duanesburg. Straight-line distance: 140.19 mi (225.61 km).

Smithtown

#1 Smithtown

Census-designated place in Suffolk County, New York

Population110,876
Coordinates40.8559300, -73.2006700
Altitude18
CountryUnited States
Duanesburg

#2 Duanesburg

Town of New York, USA

Population5,942
Coordinates42.7620200, -74.1337400
Altitude219
CountryUnited States
Start: Smithtown (-73.20067, 40.85593)
End: Duanesburg (-74.13374, 42.76202)

Estimated Travel Time

Distance: 333 km by road

SpeedTime
30 mph (48.3 km/h)06h 53m
40 mph (64.37 km/h)05h 10m
50 mph (80.47 km/h)04h 08m
60 mph (96.56 km/h)03h 26m
70 mph (112.65 km/h)02h 57m
80 mph (129 km/h)02h 34m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
7.3 gal
27.65 L · about $32.47
Round trip
$64.94
14.6 gal · 55.3 L
Estimated CO2
64.9 kg one way
Round trip: 129.8 kg / 286 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.45 $32.47 $64.94
Mid-grade $4.98 $36.37 $72.74
Premium $5.38 $39.29 $78.58
Diesel $6.51 $47.52 $95.03

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

There is no time difference between Smithtown and Duanesburg. The current time is 15:19:11.

Distance to Other Cities

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.