How far is Hempstead, NY from Mount Sinai, NY?
The driving distance from Hempstead, NY to Mount Sinai, NY is about 41.7 miles (67.1 km), with a travel time of about 00h 56m by car.
- The straight-line flight distance is about 35 miles (56.3 km).
- For a round trip, plan for roughly 01h 53m 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 00h 56m.
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.
Census-designated place in Suffolk County, New York
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Hempstead and Mount Sinai.
Turn-by-Turn Driving Directions
Step-by-step road directions between Hempstead and Mount Sinai.
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1
Start on Peninsula Boulevard
566 ft · 12 sec · Peninsula Boulevard
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2
Turn slight right onto Front Street
860 ft · 15 sec · Front Street
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3
Turn slight right
34 m · 4 sec
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4
Turn straight onto William Street
2138 ft · 1 min · William Street
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5
At the end of the road, turn left onto Jerusalem Avenue
2 mi · 3 min · Jerusalem Avenue
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6
Keep slight right to continue on Jerusalem Avenue
1 km · 1 min · Jerusalem Avenue
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7
Turn slight right onto Merrick Avenue North
682 ft · 16 sec · Merrick Avenue North
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8
Take the ramp slight right toward SO East: East Islip
676 ft · 17 sec
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9
Merge slight left onto Southern State Parkway
15.2 mi · 18 min · Southern State Parkway
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10
Keep slight left to continue on Southern State Parkway
1.3 km · 1 min · Southern State Parkway
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11
Keep slight left to continue on Sagtikos State Parkway
4.1 mi · 5 min · Sagtikos State Parkway
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12
Take the exit slight right toward I 495 East: Riverhead
1145 ft · 28 sec
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13
Keep slight left to continue on I 495 East: Riverhead
1131 ft · 28 sec
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14
Merge slight left onto Long Island Expressway
2.2 mi · 3 min · Long Island Expressway
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15
Take the exit slight right toward NY 111: Smithtown, Islip
669 ft · 14 sec
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16
Turn straight onto Express Drive South
1153 ft · 23 sec · Express Drive South
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17
Continue on Express Drive South
2136 ft · 45 sec · Express Drive South
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18
Turn left onto Wheeler Road
1.6 mi · 3 min · Wheeler Road
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19
Continue on Townline Road
530 ft · 17 sec · Townline Road
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20
Turn left onto Hauppauge Boulevard
1948 ft · 35 sec · Hauppauge Boulevard
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21
Turn slight right onto Nesconset-Port Jefferson Highway
1.3 mi · 2 min · Nesconset-Port Jefferson Highway
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22
Continue on Nesconset Highway
7.7 mi · 9 min · Nesconset Highway
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23
Continue on Nesconset-Port Jefferson Highway
2.2 mi · 3 min · Nesconset-Port Jefferson Highway
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24
Take the exit slight left toward Crystal Brook Hollow Road NORTH
134 m · 16 sec
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25
Turn left onto Crystal Brook Hollow Road
2458 ft · 53 sec · Crystal Brook Hollow Road
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26
At the end of the road, turn right onto North Country Road
948 ft · 20 sec · North Country Road
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27
Turn left onto Shore Road West
1.1 km · 2 min · Shore Road West
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28
Arrive at your destination
0 m · 1 sec · Shore Road
Car Route Details
A richer read on the saved driving route between Hempstead and Mount Sinai.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Southern State Parkway
Merge slight left onto Southern State Parkway
15.2 mi · 00h 18m
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.
Rain Showers Likely leaving Hempstead and Rain Showers Likely near Mount Sinai.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Hempstead to Mount Sinai?
The road trip is about 41.7 miles (67.1 km) and usually takes 00h 56m 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?
Bay Wood is a useful midpoint, sitting about 20.8 miles from Hempstead and 20.9 miles from Mount Sinai.
How much longer is the road route than the straight-line distance?
The direct path is about 35 miles (56.3 km), while the road route adds roughly 6.7 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 4:36 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.89 one way or $11.79 round trip. Estimated CO2 is about 13.1 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Hempstead and Rain Showers Likely near Mount Sinai.
Stop Ideas Near Bay Wood
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 Bay Wood.
Stamford Transportation Center
New Rochelle station
Bridgeport
Yonkers station
Flight Path Map
This map shows the direct air route between Hempstead and Mount Sinai. Straight-line distance: 35.01 mi (56.34 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 Mount Sinai
Hamlet located within the Town of Brookhaven in Suffolk County, New York
| Population | 12,118 |
| Coordinates | 40.9470400, -73.0295500 |
| Altitude | 10 |
| Country | United States |
End: Mount Sinai (-73.02955, 40.94704)
Estimated Travel Time
Distance: 67 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 23m |
| 40 mph (64.37 km/h) | 01h 02m |
| 50 mph (80.47 km/h) | 00h 50m |
| 60 mph (96.56 km/h) | 00h 41m |
| 70 mph (112.65 km/h) | 00h 35m |
| 80 mph (129 km/h) | 00h 31m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.01 | $5.89 | $11.79 |
| Mid-grade | $4.48 | $6.59 | $13.17 |
| Premium | $4.86 | $7.15 | $14.29 |
| Diesel | $4.69 | $6.90 | $13.80 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.