How far is Harrietstown, NY from Smithtown, NY?

The driving distance from Harrietstown, NY to Smithtown, NY is about 344.5 miles (554.4 km), with a travel time of about 05h 52m by car.

  • The straight-line flight distance is about 249.5 miles (401.5 km).
  • For a round trip, plan for roughly 11h 44m 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
344.47 mi
05h 52m
Flight
249.46 mi
401.46 km direct

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

Learn Distance

Choose another destination from Harrietstown.

Flight Distance

Direct air line
249.46 mi
Kilometers
401.46 km
Flight Time
00h 30m

Driving Distance

Road route
344.47 mi
Kilometers
554.37 km
Drive Time
05h 52m

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 05h 52m.

Arrival Snapshot
Arrive in Smithtown
Thu, Oct 15, 11:15 PM EDT
Return by in Harrietstown
Fri, Oct 16, 5:07 AM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Harrietstown
2026-10-15T17:23
Arrive Smithtown
Thu, Oct 15, 11:15 PM EDT
Route Timing
05h 52m
One way by road
Best Departure Window
6:00 AM to 8:00 AM EDT
Leave early for more breathing room
Arrive between
11:52 AM to 1:52 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
5:16 AM EDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Harrietstown
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
New Baltimore
NY

Human settlement in Greene County, New York, United States of America

From Harrietstown
169.1 mi
02h 56m
To Smithtown
175.4 mi
02h 56m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
54°F
This Afternoon

Sunny

Starts
Thu, Oct 15 4:00 PM EDT
Wind
3 mph E
Destination
62°F
This Afternoon

Sunny

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

Driving Route Map

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

Turn-by-Turn Driving Directions

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

  1. 1

    Start on Harrietstown Road

    1.7 mi · 3 min · Harrietstown Road

  2. 2

    Continue on State Highway 86

    3 mi · 4 min · State Highway 86

  3. 3

    Continue on Broadway Street

    2778 ft · 56 sec · Broadway Street

  4. 4

    Turn left onto Bloomingdale Avenue

    150 m · 12 sec · Bloomingdale Avenue

  5. 5

    Turn right onto Church Street

    2254 ft · 50 sec · Church Street

  6. 6

    At the end of the road, turn left onto River Street

    1126 ft · 32 sec · River Street

  7. 7

    Keep slight right to continue on River Street

    93 m · 9 sec · River Street

  8. 8

    Turn slight right onto Lake Flower Avenue

    1.1 mi · 3 min · Lake Flower Avenue

  9. 9

    Continue on Saranac-Placid Road

    4.9 mi · 8 min · Saranac-Placid Road

  10. 10

    Turn right onto Old Military Road

    3.6 mi · 6 min · Old Military Road

  11. 11

    Turn straight onto Cascade Road

    5.3 mi · 8 min · Cascade Road

  12. 12

    Continue on State Highway 73

    7.2 mi · 10 min · State Highway 73

  13. 13

    Turn straight onto State Highway 9N

    1.8 mi · 3 min · State Highway 9N

  14. 14

    Continue on State Highway 73

    11.5 mi · 17 min · State Highway 73

  15. 15

    Turn straight

    2.1 mi · 3 min

  16. 16

    Take the ramp right toward I 87 South

    1717 ft · 33 sec

  17. 17

    Merge slight left onto Adirondack Northway

    103.7 mi · 2 hr 2 min · Adirondack Northway

  18. 18

    Keep slight right to continue on I 87 South, I 90: Boston, Albany, New York, Buffalo

    1694 ft · 32 sec

  19. 19

    Continue on I 87 South, I 90 West: New York, Buffalo

    2619 ft · 51 sec

  20. 20

    Keep slight right to continue on I 87 South: New York

    117.8 mi · 2 hr 17 min

  21. 21

    Keep slight right to continue on I 287 South, NJ 17 South: New Jersey

    1.5 km · 60 sec

  22. 22

    Continue straight

    2496 ft · 39 sec

  23. 23

    Keep slight left to continue on NJ 17 South: Mahwah

    14.1 mi · 19 min

  24. 24

    Take the exit slight right toward NJ 4, GSP South: Paterson, Fort Lee, New York

    566 ft · 19 sec

  25. 25

    Keep slight left to continue on NJ 4 East: Fort Lee, New York

    2455 ft · 1 min

  26. 26

    Merge slight left

    1417 ft · 24 sec

  27. 27

    Continue straight

    6.4 mi · 9 min

  28. 28

    Take the exit slight left toward I 95 North: George Washington Bridge

    1124 ft · 18 sec

  29. 29

    Merge slight left

    1.2 km · 55 sec

  30. 30

    Keep slight left

    1.3 km · 1 min

  31. 31

    Continue on George Washington Bridge (upper level)

    3174 ft · 1 min · George Washington Bridge (upper level)

  32. 32

    Continue on Trans-Manhattan Expressway

    1.2 km · 1 min · Trans-Manhattan Expressway

  33. 33

    Continue on Cross Bronx Expressway

    4.7 mi · 6 min · Cross Bronx Expressway

  34. 34

    Keep slight right to continue on Cross Bronx Expressway

    2 mi · 3 min · Cross Bronx Expressway

  35. 35

    Merge slight left onto Throgs Neck Expressway

    3271 ft · 58 sec · Throgs Neck Expressway

  36. 36

    Continue on Throgs Neck Bridge

    2 mi · 3 min · Throgs Neck Bridge

  37. 37

    Continue on Clearview Expressway

    3.2 mi · 3 min · Clearview Expressway

  38. 38

    Take the exit slight right toward I 495: Manhattan, Eastern Long Island

    810 ft · 28 sec

  39. 39

    Keep slight left to continue on I 495 East: Long Island Expressway, Eastern Long Island

    1448 ft · 39 sec

  40. 40

    Merge slight left onto Long Island Expressway

    14.2 mi · 20 min · Long Island Expressway

  41. 41

    Take the exit slight right toward N East: Hauppauge

    2144 ft · 53 sec

  42. 42

    Merge slight left onto Northern State Parkway

    13.7 mi · 19 min · Northern State Parkway

  43. 43

    Take the exit slight right toward SM North: Kings Park

    1052 ft · 26 sec

  44. 44

    Merge slight left onto Sagtikos State Parkway

    152 m · 6 sec · Sagtikos State Parkway

  45. 45

    Continue on Sunken Meadow State Parkway

    1.7 mi · 2 min · Sunken Meadow State Parkway

  46. 46

    Take the exit slight right toward NY 25 East: Jericho Turnpike East, Smithtown

    1170 ft · 31 sec

  47. 47

    Turn slight right onto Jericho Turnpike

    3.9 mi · 6 min · Jericho Turnpike

  48. 48

    Continue on West Main Street

    3144 ft · 55 sec · West Main Street

  49. 49

    Arrive at your destination

    0 m · 1 sec · West Main Street

Car Route Details

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

OSRM road route
Drive Character

Long-distance drive

This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.

Directions
49 steps
10 turns on the saved route
Ramps & Exits
14
7 merges, 7 ramps or exits
Navigation Density
14.2 / 100 mi
Decision points by distance
Main Roads
I 87 South
119 mi · 35%
Adirondack Northway
104 mi · 30%
State Highway 73
18.7 mi · 5%
Long Island Expressway
14.2 mi · 4%
NJ 17 South
14.1 mi · 4%
Northern State Parkway
13.7 mi · 4%
Longest Stretch

I 87 South

Keep slight right to continue on I 87 South: New York

118 mi · 02h 17m

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
05h 52m
Long day trip
Same-Day Return
11h 44m
Round-trip wheel time
Road vs Air
+95 mi
249.5 mi direct line
Halfway Stop
New Baltimore
02h 56m from Harrietstown
Leave By
5:16 AM EDT
Early departure recommended
Weather Watch

Sunny leaving Harrietstown and Sunny near Smithtown.

Trip Questions

Direct answers travelers usually want before committing to the drive.

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

The road trip is about 344.5 miles (554.4 km) and usually takes 05h 52m 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?

New Baltimore is a useful midpoint, sitting about 169.1 miles from Harrietstown and 175.4 miles from Smithtown.

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

The direct path is about 249.5 miles (401.5 km), while the road route adds roughly 95 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 5:16 AM EDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $54.04 one way or $108.09 round trip. Estimated CO2 is about 108 kg one way.

What should you check before leaving?

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

Stop Ideas Near New Baltimore

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

Mid-route Guidance
Local place coverage is thin around New Baltimore, 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 New Baltimore.

RAIL

Hudson

21 mi away
69 South Front St.
RAIL

Albany–Rensselaer

22 mi away
525 East St.
RAIL

Schenectady

43 mi away
332 Erie Blvd.
RAIL

Joseph Scelsi Intermodal Transportation Center

44 mi away
1 Columbus Avenue

Flight Path Map

This map shows the direct air route between Harrietstown and Smithtown. Straight-line distance: 249.46 mi (401.46 km).

Harrietstown

#1 Harrietstown

Town of the United States

Population5,423
Coordinates44.3970000, -74.1584900
Altitude565
CountryUnited States
Smithtown

#2 Smithtown

Census-designated place in Suffolk County, New York

Population110,876
Coordinates40.8559300, -73.2006700
Altitude18
CountryUnited States
Start: Harrietstown Road (-74.158525, 44.397)
End: West Main Street (-73.200729, 40.855811)

Estimated Travel Time

Distance: 554 km by road

SpeedTime
30 mph (48.3 km/h)11h 28m
40 mph (64.37 km/h)08h 36m
50 mph (80.47 km/h)06h 53m
60 mph (96.56 km/h)05h 44m
70 mph (112.65 km/h)04h 55m
80 mph (129 km/h)04h 17m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
12.15 gal
46.01 L · about $54.04
Round trip
$108.09
24.3 gal · 92.02 L
Estimated CO2
108 kg one way
Round trip: 216 kg / 476 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.45 $54.04 $108.09
Mid-grade $4.98 $60.53 $121.06
Premium $5.38 $65.39 $130.78
Diesel $6.51 $79.08 $158.17

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 Harrietstown and Smithtown. The current time is 17:23:18.

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.