How far is Portsmouth, RI from Westport, MA?
The driving distance from Portsmouth, RI to Westport, MA is about 15.3 miles (24.6 km), with a travel time of about 00h 26m by car.
- The straight-line flight distance is about 11.7 miles (18.8 km).
- For a round trip, plan for roughly 00h 52m 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 26m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town in Newport County, Rhode Island, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Clear
Sunny
Driving Route Map
The map below follows the saved road route between Portsmouth and Westport.
Turn-by-Turn Driving Directions
Step-by-step road directions between Portsmouth and Westport.
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1
Start on the route
26 m · 11 sec
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2
Turn left onto Freeborn Street
131 m · 22 sec · Freeborn Street
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3
Turn left onto East Main Road
4.9 mi · 7 min · East Main Road
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4
Take the exit slight right toward Fish Road
1032 ft · 30 sec
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5
Turn right onto Fish Road
1.3 mi · 2 min · Fish Road
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6
At the end of the road, turn left onto Bulgarmarsh Road
2.6 mi · 4 min · Bulgarmarsh Road
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7
Continue on American Legion Highway
2.4 mi · 4 min · American Legion Highway
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8
Turn right onto Old County Road
1.3 km · 2 min · Old County Road
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9
Turn left onto Old County Road
2.4 mi · 5 min · Old County Road
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10
Continue on Old Westport Road
2946 ft · 1 min · Old Westport Road
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11
Arrive at your destination
0 m · 1 sec · Old Westport Road
Car Route Details
A richer read on the saved driving route between Portsmouth and Westport.
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.
East Main Road
Turn left onto East Main Road
4.94 mi · 00h 07m
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.
Mostly Clear leaving Portsmouth and Sunny near Westport.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Portsmouth to Westport?
The road trip is about 15.3 miles (24.6 km) and usually takes 00h 26m 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?
Tiverton is a useful midpoint, sitting about 7.6 miles from Portsmouth and 7.6 miles from Westport.
How much longer is the road route than the straight-line distance?
The direct path is about 11.7 miles (18.8 km), while the road route adds roughly 3.6 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 7:38 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.31 one way or $4.62 round trip. Estimated CO2 is about 4.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Clear around Portsmouth and Sunny near Westport.
Stop Ideas Near Tiverton
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 Tiverton.
Providence station
Kingston station
Westerly station
Route 128 station
Flight Path Map
This map shows the direct air route between Portsmouth and Westport. Straight-line distance: 11.69 mi (18.82 km).
#1 Portsmouth
Town in Newport County, Rhode Island, USA
| Population | 17,108 |
| Coordinates | 41.6023200, -71.2503300 |
| Altitude | 43 |
| Country | United States |
#2 Westport
Town of the United States
| Population | 16,097 |
| Coordinates | 41.6257700, -71.0261000 |
| Altitude | - |
| Country | United States |
End: Westport (-71.0261, 41.62577)
Estimated Travel Time
Distance: 25 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 30m |
| 40 mph (64.37 km/h) | 00h 22m |
| 50 mph (80.47 km/h) | 00h 18m |
| 60 mph (96.56 km/h) | 00h 15m |
| 70 mph (112.65 km/h) | 00h 13m |
| 80 mph (129 km/h) | 00h 11m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.28 | $2.31 | $4.62 |
| Mid-grade | $5.03 | $2.72 | $5.43 |
| Premium | $5.43 | $2.93 | $5.86 |
| Diesel | $6.33 | $3.42 | $6.83 |
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 Rhode Island · Oct 15, 2026