How far is Greenlawn, NY from Riverhead, NY?
The driving distance from Greenlawn, NY to Riverhead, NY is about 43.2 miles (69.5 km), with a travel time of about 00h 50m by car.
- The straight-line flight distance is about 36.8 miles (59.3 km).
- For a round trip, plan for roughly 01h 40m 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 50m.
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
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Greenlawn and Riverhead.
Turn-by-Turn Driving Directions
Step-by-step road directions between Greenlawn and Riverhead.
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1
Start on Smith Street
6 m · 4 sec · Smith Street
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2
Turn right onto Broadway
2703 ft · 58 sec · Broadway
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3
Turn left onto Cuba Hill Road
2 mi · 4 min · Cuba Hill Road
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4
Turn right onto Elwood Road
2985 ft · 1 min · Elwood Road
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5
Turn left onto Jericho Turnpike
2.3 mi · 5 min · Jericho Turnpike
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6
Keep slight right to continue on Veterans Memorial Highway
1.8 mi · 3 min · Veterans Memorial Highway
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7
Continue on Veterans Highway
2448 ft · 41 sec · Veterans Highway
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8
Continue on Veterans Memorial Highway
2 mi · 3 min · Veterans Memorial Highway
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9
Keep slight right to continue on Veterans Memorial Highway
1.9 mi · 3 min · Veterans Memorial Highway
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10
Turn left onto Express Drive South
2070 ft · 44 sec · Express Drive South
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11
Take the ramp slight left toward I 495 east: Riverhead
1096 ft · 29 sec
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12
Merge slight left onto Long Island Expressway
24.1 mi · 33 min · Long Island Expressway
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13
Take the exit slight right toward NY 24: Hampton Bays, Calverton
1188 ft · 25 sec
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14
Keep slight right to continue on NY 24 East, CR 94 East: Suffolk County Center, Hampton Bays, Montauk, Riverhead
70 m · 7 sec
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15
Turn right onto Edwards Avenue
820 ft · 17 sec · Edwards Avenue
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16
Continue on Nugent Drive
4.1 mi · 6 min · Nugent Drive
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17
Enter the roundabout and take exit 4 toward Peconic Avenue
104 m · 20 sec · Peconic Avenue
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18
Exit the roundabout onto Peconic Avenue
830 ft · 23 sec · Peconic Avenue
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19
At the end of the road, turn right onto East Main Street
43 m · 6 sec · East Main Street
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20
Arrive at your destination
0 m · 1 sec · East Main Street
Car Route Details
A richer read on the saved driving route between Greenlawn and Riverhead.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Long Island Expressway
Merge slight left onto Long Island Expressway
24.1 mi · 00h 33m
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.
Sunny leaving Greenlawn and Sunny near Riverhead.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Greenlawn to Riverhead?
The road trip is about 43.2 miles (69.5 km) and usually takes 00h 50m 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?
Farmingville is a useful midpoint, sitting about 20.4 miles from Greenlawn and 22.7 miles from Riverhead.
How much longer is the road route than the straight-line distance?
The direct path is about 36.8 miles (59.3 km), while the road route adds roughly 6.4 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 4:50 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.76 one way or $13.52 round trip. Estimated CO2 is about 13.5 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Greenlawn and Sunny near Riverhead.
Stop Ideas Near Farmingville
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 Farmingville.
Bridgeport
Stamford Transportation Center
Union Station
New Rochelle station
Flight Path Map
This map shows the direct air route between Greenlawn and Riverhead. Straight-line distance: 36.87 mi (59.34 km).
#1 Greenlawn
Census-designated place in Suffolk County, New York
| Population | 13,742 |
| Coordinates | 40.8689900, -73.3651200 |
| Altitude | 69 |
| Country | United States |
#2 Riverhead
Town in New York
| Population | 33,434 |
| Coordinates | 40.9170400, -72.6620400 |
| Altitude | 4 |
| Country | United States |
End: East Main Street (-72.662044, 40.91705)
Estimated Travel Time
Distance: 70 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 26m |
| 40 mph (64.37 km/h) | 01h 04m |
| 50 mph (80.47 km/h) | 00h 51m |
| 60 mph (96.56 km/h) | 00h 43m |
| 70 mph (112.65 km/h) | 00h 37m |
| 80 mph (129 km/h) | 00h 32m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.45 | $6.76 | $13.52 |
| Mid-grade | $4.98 | $7.57 | $15.15 |
| Premium | $5.38 | $8.18 | $16.36 |
| Diesel | $6.51 | $9.89 | $19.79 |
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