How far is Hempstead, NY from West Islip, NY?
The driving distance from Hempstead, NY to West Islip, NY is about 18.5 miles (29.7 km), with a travel time of about 00h 27m by car.
- The straight-line flight distance is about 16.3 miles (26.3 km).
- For a round trip, plan for roughly 00h 54m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 27m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Census-designated place in Nassau County, New York
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers then Partly Sunny
Partly Sunny then Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Hempstead and West Islip.
Turn-by-Turn Driving Directions
Step-by-step road directions between Hempstead and West Islip.
-
1
Start on Peninsula Boulevard
566 ft · 12 sec · Peninsula Boulevard
-
2
Turn slight right onto Front Street
860 ft · 15 sec · Front Street
-
3
Turn slight right
34 m · 4 sec
-
4
Turn straight onto William Street
2138 ft · 1 min · William Street
-
5
At the end of the road, turn left onto Jerusalem Avenue
2 mi · 3 min · Jerusalem Avenue
-
6
Keep slight right to continue on Jerusalem Avenue
1 km · 1 min · Jerusalem Avenue
-
7
Turn slight right onto Merrick Avenue North
682 ft · 16 sec · Merrick Avenue North
-
8
Take the ramp slight right toward SO East: East Islip
676 ft · 17 sec
-
9
Merge slight left onto Southern State Parkway
8.6 mi · 10 min · Southern State Parkway
-
10
Take the exit slight right toward NY 109 East: Babylon
1161 ft · 35 sec
-
11
Turn slight right onto Farmingdale Road
3.5 mi · 6 min · Farmingdale Road
-
12
Continue on Little East Neck Road North
2843 ft · 1 min · Little East Neck Road North
-
13
Turn left onto Trolley Line Road
3248 ft · 1 min · Trolley Line Road
-
14
Continue on Railroad Avenue
997 ft · 23 sec · Railroad Avenue
-
15
Turn left onto Deer Park Avenue
824 ft · 22 sec · Deer Park Avenue
-
16
Turn right onto Simon Street
106 m · 7 sec · Simon Street
-
17
Continue on John Street
108 m · 9 sec · John Street
-
18
Keep slight left to continue on John Street
2073 ft · 59 sec · John Street
-
19
Continue on Union Boulevard
2178 ft · 1 min · Union Boulevard
-
20
Arrive at your destination
0 m · 1 sec · Union Boulevard
Car Route Details
A richer read on the saved driving route between Hempstead and West Islip.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Southern State Parkway
Merge slight left onto Southern State Parkway
8.64 mi · 00h 10m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Slight Chance Rain Showers then Partly Sunny leaving Hempstead and Partly Sunny then Slight Chance Rain Showers near West Islip.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Hempstead to West Islip?
The road trip is about 18.5 miles (29.7 km) and usually takes 00h 27m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
North Massapequa is a useful midpoint, sitting about 9.2 miles from Hempstead and 9.3 miles from West Islip.
How much longer is the road route than the straight-line distance?
The direct path is about 16.3 miles (26.3 km), while the road route adds roughly 2.2 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:36 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.61 one way or $5.21 round trip. Estimated CO2 is about 5.8 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers then Partly Sunny around Hempstead and Partly Sunny then Slight Chance Rain Showers near West Islip.
Stop Ideas Near North Massapequa
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Town of Babylon History Museum at Old Town Hall
Babylon Town Hall Annex
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to North Massapequa.
New Rochelle station
Stamford Transportation Center
Yonkers station
Pennsylvania Station
Flight Path Map
This map shows the direct air route between Hempstead and West Islip. Straight-line distance: 16.37 mi (26.34 km).
#1 Hempstead
Located in Nassau County, New York, this hamlet and village is a major commercial and transportation hub.
| Population | 764,055 |
| Coordinates | 40.7062100, -73.6187400 |
| Altitude | 17 |
| Country | United States |
#2 West Islip
Census-designated place in Suffolk County, New York
| Population | 28,335 |
| Coordinates | 40.7062100, -73.3062300 |
| Altitude | 6 |
| Country | United States |
End: West Islip (-73.30623, 40.70621)
Estimated Travel Time
Distance: 30 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 36m |
| 40 mph (64.37 km/h) | 00h 27m |
| 50 mph (80.47 km/h) | 00h 22m |
| 60 mph (96.56 km/h) | 00h 18m |
| 70 mph (112.65 km/h) | 00h 15m |
| 80 mph (129 km/h) | 00h 13m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $2.61 | $5.21 |
| Mid-grade | $4.48 | $2.91 | $5.83 |
| Premium | $4.86 | $3.16 | $6.32 |
| Diesel | $4.69 | $3.05 | $6.10 |
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 · Apr 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.