Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Sep 3, 2026 · Editorial standards
Drive Time
26m
Distance
18.2 mi
29 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$3
one way
EV Charging
Good
8 stations
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Greenwich, CT
Wikimedia Commons
Westport, CT
MART PRODUCTION
Greenwich to Westport is 18.2 miles and takes about 26 minutes via I 95, with a fuel budget near $3 and enough daylight to finish in a day. This short hop stays within Connecticut, connecting two points in the Northeast region. Given its brevity, it’s more of a quick transit than a scenic excursion, suitable for a straightforward commute or adding onto a larger trip. You'll spend most of your time on the interstate, so expect minimal fuss and maximum efficiency.
| Road | Distance | Duration |
|---|---|---|
| I 95 | 15 mi | 20m |
| Riverside Avenue | 1.2 mi | 2m |
| Saugatuck Avenue | 0.4 mi | <1m |
| Post Road West | 0.4 mi | <1m |
| Field Point Road | 0.2 mi | <1m |
| Arch Street | 0.2 mi | <1m |
| Sound View Drive | 0.2 mi | <1m |
| West Elm Street | <0.1 mi | <1m |
Hour-of-day weekday pattern from 30 FHWA count stations on your route.
Peak
5 PM
~4,341 veh/hr typical
Quietest
2 AM
~657 veh/hr
Peak-to-quiet ratio
6.6×
busier at peak than in the quiet hours
Averaged across 5 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Step-by-step road directions between Greenwich, CT and Westport, CT.
Start on West Elm Street
Turn left onto Field Point Road
Turn slight left onto Sound View Drive
Continue on Arch Street
Take the ramp
Merge onto I 95
Take the exit
Turn left onto CT 33
Continue on CT 33
Turn right onto US 1
Arrive at destination
5 decision points cluster between mile 0 and 17.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Turn left onto Field Point Road
Lane positioning matters here
Take the ramp toward I 95 North: New Haven
Navigation decision point
Merge onto I 95
Merge point - match speed before joining. Lane positioning matters here
Take the exit toward CT 33, CT 136: Westport, Saugatuck
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Turn right onto US 1 / Post Road West
Lane positioning matters here
Regular Gas
$3.03 one way
$6.06 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.70 | $3.36 | $6.73 |
| premium | $5.07 | $3.63 | $7.26 |
| diesel | $5.60 | $4.01 | $8.02 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$3
Estimated CO2 emission: 6.4 kg one way. Prices: EIA weekly data, 2026-08-31.
Driving Electric?
About $2 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 5.5 | 0 | $1.91 | $0.87 |
| Efficient EV | 4.6 | 0 | $1.59 | $0.73 |
| EV Truck/SUV | 7.3 | 0 | $2.55 | $1.16 |
Gas CO2
6 kg
EV CO2
2 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Current conditions at both ends of the drive.
Origin
Afternoon in Greenwich on Thursday
Local time
2:09 PM
EDT
Current temp
62°F
Mostly Clear
Destination
Afternoon in Westport on Thursday
Local time
2:09 PM
EDT
Current temp
60°F
Mostly Clear
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
This drive is predominantly highway, with 83% of the 18.2 miles on I 95. You'll experience a longest stretch of 15 miles on the interstate before transitioning to surface roads like Riverside Avenue and Saugatuck Avenue for the final portion. Expect a high number of exits and merges as you navigate this primarily highway corridor.
This is a straightforward highway drive that stays mostly on I 95 and Riverside Avenue. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near Field Point Road.
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 26m drive. You will face about 6 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: near the start (Field Point Road): Lane positioning matters here; at 0.7 miles: Navigation decision point; at 0.9 miles (I 95): Merge point - match speed before joining. Lane positioning matters here.
Mostly flat terrain
Total Climb
159 ft
Total Descent
237 ft
Highest Point
108 ft
~13 mi in
Elevation Range
98 ft
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Greenwich, CT to Westport, CT, road signs begin pointing toward Saugatuck along the way.
Saugatuck
Founded 1640
Greenwich is a town of about 60,000 in Fairfield County, southwestern Connecticut. It is one of the wealthiest communities in America and is blessed with lush and beautiful scenery and many large and impressive houses.
Top landmarks
Westport is in Fairfield County, Connecticut.
Top landmarks
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Weekend Trip
Doable as a same-day drive at 26m. Total distance: 18.2 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
26m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (83%). Straightforward navigation.
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, USGS 3DEP for elevation, NPS for national parks, and FHWA TMAS for hourly traffic volumes. See our methodology for refresh cadence and limitations.
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