How far is Kingston, RI from Portsmouth, RI?
The driving distance from Kingston, RI to Portsmouth, RI is about 25 miles (40.2 km), with a travel time of about 00h 46m by car.
- The straight-line flight distance is about 16.4 miles (26.4 km).
- For a round trip, plan for roughly 01h 33m 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 46m.
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 Rhode Island, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Patchy Fog
Driving Route Map
The map below follows the saved road route between Kingston and Portsmouth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Kingston and Portsmouth.
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1
Start on Old North Road
891 ft · 30 sec · Old North Road
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2
Turn left onto Briar Lane
1191 ft · 59 sec · Briar Lane
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3
At the end of the road, turn left onto Upper College Road
1023 ft · 42 sec · Upper College Road
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4
At the end of the road, turn left onto Kingstown Road
1302 ft · 46 sec · Kingstown Road
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5
Continue on Mooresfield Road
3.6 mi · 7 min · Mooresfield Road
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6
Turn left onto Tower Hill Road
2.3 mi · 4 min · Tower Hill Road
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7
Keep slight right to continue on RI 138 East: Jamestown, Newport
9.6 mi · 13 min
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8
Turn right onto Admiral Kalbfus Road
956 ft · 44 sec · Admiral Kalbfus Road
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9
Turn left onto Girard Avenue
1.1 km · 2 min · Girard Avenue
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10
At the end of the road, turn right onto Coddington Highway
1.3 km · 1 min · Coddington Highway
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11
Turn left onto West Main Road
6.2 mi · 14 min · West Main Road
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12
Take the exit slight left toward RI 114 North: Bristol
1410 ft · 34 sec
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13
Turn straight onto RI 114 North: Bristol
81 m · 8 sec
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14
Turn right onto Freeborn Street
843 ft · 40 sec · Freeborn Street
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15
Continue on Freeborn Street
1724 ft · 1 min · Freeborn Street
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16
Turn left
26 m · 6 sec
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17
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Kingston and Portsmouth.
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.
RI 138 East
Keep slight right to continue on RI 138 East: Jamestown, Newport
9.58 mi · 00h 13m
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.
Chance Rain Showers leaving Kingston and Patchy Fog near Portsmouth.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Kingston to Portsmouth?
The road trip is about 25 miles (40.2 km) and usually takes 00h 46m 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?
Jamestown is a useful midpoint, sitting about 12.5 miles from Kingston and 12.5 miles from Portsmouth.
How much longer is the road route than the straight-line distance?
The direct path is about 16.4 miles (26.4 km), while the road route adds roughly 8.6 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 4:56 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.47 one way or $6.94 round trip. Estimated CO2 is about 7.8 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Kingston and Patchy Fog near Portsmouth.
Stop Ideas Near Jamestown
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 Jamestown.
Kingston station
Providence station
Westerly station
Foxwoods Casino, Connecticut
Flight Path Map
This map shows the direct air route between Kingston and Portsmouth. Straight-line distance: 16.4 mi (26.4 km).
#1 Kingston
Kingston is a place in Rhode Island, United States.
| Population | 0 |
| Coordinates | 41.4803800, -71.5225600 |
| Altitude | 75 |
| Country | United States |
#2 Portsmouth
Town in Newport County, Rhode Island, USA
| Population | 17,108 |
| Coordinates | 41.6023200, -71.2503300 |
| Altitude | 43 |
| Country | United States |
End: Portsmouth (-71.25033, 41.60232)
Estimated Travel Time
Distance: 40 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 49m |
| 40 mph (64.37 km/h) | 00h 37m |
| 50 mph (80.47 km/h) | 00h 29m |
| 60 mph (96.56 km/h) | 00h 24m |
| 70 mph (112.65 km/h) | 00h 21m |
| 80 mph (129 km/h) | 00h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $3.47 | $6.94 |
| Mid-grade | $4.46 | $3.92 | $7.84 |
| Premium | $4.86 | $4.28 | $8.55 |
| Diesel | $6.00 | $5.28 | $10.55 |
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 · 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.