How far is Greenwich, CT from Groton, CT?
The driving distance from Greenwich, CT to Groton, CT is about 94 miles (151.2 km), with a travel time of about 02h 05m by car.
- The straight-line flight distance is about 83.6 miles (134.6 km).
- For a round trip, plan for roughly 04h 10m 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 02h 05m.
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.
Town in New Haven County, Connecticut, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Greenwich and Groton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Greenwich and Groton.
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1
Start on West Elm Street
16 m · 6 sec · West Elm Street
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2
Turn left onto Field Point Road
1187 ft · 26 sec · Field Point Road
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3
Turn slight left onto Sound View Drive
1145 ft · 23 sec · Sound View Drive
-
4
Continue on Arch Street
1165 ft · 35 sec · Arch Street
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5
Take the ramp left toward I 95 North: New Haven
1220 ft · 30 sec
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6
Merge slight left
43.8 mi · 59 min
-
7
Take the exit slight right toward Long Wharf Drive, Sargent Drive
1092 ft · 1 min
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8
Turn left onto Long Wharf Drive
1.5 km · 2 min · Long Wharf Drive
-
9
Continue on East Street
647 ft · 17 sec · East Street
-
10
Turn right onto Water Street
562 ft · 10 sec · Water Street
-
11
Continue on Forbes Avenue
1.2 mi · 2 min · Forbes Avenue
-
12
Turn right onto Frontage Road
1.1 km · 49 sec · Frontage Road
-
13
Take the exit slight left toward I 95 North
1227 ft · 30 sec
-
14
Merge slight left
44.4 mi · 53 min
-
15
Take the exit slight right toward US 1 North: Thames Street, Downtown Groton
676 ft · 23 sec
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16
Keep slight right
1464 ft · 50 sec
-
17
Keep slight left
69 m · 10 sec
-
18
Continue on North Street
1569 ft · 35 sec · North Street
-
19
Continue on Mitchell Street
2610 ft · 55 sec · Mitchell Street
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20
Turn right onto Ledyard Avenue
616 ft · 33 sec · Ledyard Avenue
-
21
Turn sharp right onto Smith Street
8 m · 1 sec · Smith Street
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22
Arrive at your destination
0 m · 1 sec · Smith Street
Car Route Details
A richer read on the saved driving route between Greenwich and Groton.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 95 North
Merge slight left
44.4 mi · 00h 53m
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.
Mostly Sunny near Greenwich.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Greenwich to Groton?
The road trip is about 94 miles (151.2 km) and usually takes 02h 05m 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?
East Haven is a useful midpoint, sitting about 46.9 miles from Greenwich and 47.1 miles from Groton.
How much longer is the road route than the straight-line distance?
The direct path is about 83.6 miles (134.6 km), while the road route adds roughly 10.4 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 2:20 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.10 one way or $26.19 round trip. Estimated CO2 is about 29.5 kg one way.
What should you check before leaving?
Before leaving, the latest forecast around Greenwich is Mostly Sunny.
Stop Ideas Near East Haven
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 East Haven.
Union Station
Wallingford station
Bridgeport
Meriden Transit Center
Flight Path Map
This map shows the direct air route between Greenwich and Groton. Straight-line distance: 83.64 mi (134.6 km).
#1 Greenwich
Town in Fairfield County, Connecticut, United States
| Population | 62,769 |
| Coordinates | 41.0264900, -73.6284600 |
| Altitude | 28 |
| Country | United States |
#2 Groton
Town in Connecticut
| Population | 38,258 |
| Coordinates | 41.3501000, -72.0784100 |
| Altitude | 24 |
| Country | United States |
End: Groton (-72.07841, 41.3501)
Estimated Travel Time
Distance: 151 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 07m |
| 40 mph (64.37 km/h) | 02h 20m |
| 50 mph (80.47 km/h) | 01h 52m |
| 60 mph (96.56 km/h) | 01h 33m |
| 70 mph (112.65 km/h) | 01h 20m |
| 80 mph (129 km/h) | 01h 10m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $13.10 | $26.19 |
| Mid-grade | $4.46 | $14.80 | $29.59 |
| Premium | $4.86 | $16.13 | $32.26 |
| Diesel | $6.00 | $19.91 | $39.82 |
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 Connecticut · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.