How far is Smithfield, RI from Portsmouth, RI?
The driving distance from Smithfield, RI to Portsmouth, RI is about 42.3 miles (68.1 km), with a travel time of about 00h 46m by car.
- The straight-line flight distance is about 27 miles (43.4 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.
A city in Providence County, Rhode Island.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Rain Showers
Driving Route Map
The map below follows the saved road route between Smithfield and Portsmouth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Smithfield and Portsmouth.
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1
Start on Brayton Road
7 m · 3 sec · Brayton Road
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2
Turn left onto Farnum Pike
1.3 mi · 2 min · Farnum Pike
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3
Turn left onto George Washington Highway
1.2 mi · 2 min · George Washington Highway
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4
Turn right onto Douglas Pike
4.2 mi · 7 min · Douglas Pike
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5
Continue on Douglas Avenue
1.8 mi · 3 min · Douglas Avenue
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6
Turn slight left onto Branch Avenue
1.2 km · 1 min · Branch Avenue
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7
Take the ramp slight right toward RI 146 South
885 ft · 22 sec
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8
Merge slight left onto Old Louisquisset Pike
1.4 mi · 1 min · Old Louisquisset Pike
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9
Merge slight left
1.2 mi · 2 min
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10
Take the exit slight right toward I 195 East, US 6 East: East Providence, Cape Cod
3.3 mi · 6 min
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11
Keep slight left to continue on East Providence Expressway
5.3 mi · 6 min · East Providence Expressway
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12
Take the exit slight right toward MA 136: Warren Rhode Island, Newport Rhode Island
1759 ft · 50 sec
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13
Turn right onto James Reynolds Road
1246 ft · 25 sec · James Reynolds Road
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14
Continue on Market Street
2.6 mi · 4 min · Market Street
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15
Continue on Market Street
59 m · 7 sec · Market Street
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16
Turn straight onto Kickemuit Road
1031 ft · 25 sec · Kickemuit Road
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17
Continue on Arlington Avenue
2274 ft · 41 sec · Arlington Avenue
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18
Turn straight onto Metacom Avenue
4.3 mi · 7 min · Metacom Avenue
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19
Continue on Metacom Avenue
1.6 km · 1 min · Metacom Avenue
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20
Turn straight onto Ferry Road
1081 ft · 18 sec · Ferry Road
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21
Continue on Mount Hope Bridge
1.1 mi · 2 min · Mount Hope Bridge
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22
Keep slight left to continue on Boyds Lane
1.2 km · 1 min · Boyds Lane
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23
Turn slight right onto East Main Road
1.8 mi · 3 min · East Main Road
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24
Turn right onto Freeborn Street
131 m · 21 sec · Freeborn Street
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25
Turn right
26 m · 6 sec
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26
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Smithfield 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.
East Providence Expressway
Keep slight left to continue on East Providence Expressway
5.35 mi · 00h 06m
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.
Rain Showers leaving Smithfield and Rain Showers near Portsmouth.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Smithfield to Portsmouth?
The road trip is about 42.3 miles (68.1 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?
East Providence is a useful midpoint, sitting about 16.8 miles from Smithfield and 25.5 miles from Portsmouth.
How much longer is the road route than the straight-line distance?
The direct path is about 27 miles (43.4 km), while the road route adds roughly 15.3 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 $5.88 one way or $11.76 round trip. Estimated CO2 is about 13.2 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Smithfield and Rain Showers near Portsmouth.
Stop Ideas Near East Providence
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 Providence.
Providence station
Kingston station
Route 128 station
Framingham station
Flight Path Map
This map shows the direct air route between Smithfield and Portsmouth. Straight-line distance: 26.94 mi (43.35 km).
#1 Smithfield
County seat of Johnston County, North Carolina
| Population | 21,842 |
| Coordinates | 41.9220400, -71.5495100 |
| Altitude | 84 |
| 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: Freeborn Street (-71.250436, 41.602105)
Estimated Travel Time
Distance: 68 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 24m |
| 40 mph (64.37 km/h) | 01h 03m |
| 50 mph (80.47 km/h) | 00h 50m |
| 60 mph (96.56 km/h) | 00h 42m |
| 70 mph (112.65 km/h) | 00h 36m |
| 80 mph (129 km/h) | 00h 31m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $5.88 | $11.76 |
| Mid-grade | $4.46 | $6.64 | $13.28 |
| Premium | $4.86 | $7.24 | $14.48 |
| Diesel | $6.00 | $8.94 | $17.87 |
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 · May 01, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.