How far is Cranston, RI from Portsmouth, RI?
The driving distance from Cranston, RI to Portsmouth, RI is about 31.3 miles (50.4 km), with a travel time of about 00h 34m by car.
- The straight-line flight distance is about 15.6 miles (25.1 km).
- For a round trip, plan for roughly 01h 08m 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 34m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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 Bristol County, 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 Cranston and Portsmouth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Cranston and Portsmouth.
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1
Start on the route
17 m · 10 sec
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2
Turn sharp right onto Park Avenue
1124 ft · 43 sec · Park Avenue
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3
Turn right onto Reservoir Avenue
2167 ft · 57 sec · Reservoir Avenue
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4
Take the ramp straight toward RI 10 South
1318 ft · 33 sec
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5
Merge slight left onto Huntington Expressway
922 ft · 16 sec · Huntington Expressway
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6
Take the exit slight right toward I 95: Providence, Warwick
150 m · 14 sec
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7
Keep slight left to continue on I 95 North: Providence
3010 ft · 2 min
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8
Merge slight left
2 mi · 3 min
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9
Take the exit slight right toward I 195 East, US 6 East: East Providence, Cape Cod
2407 ft · 46 sec
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10
Continue on Iway
1.5 km · 1 min · Iway
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11
Continue on East Providence Expressway
1.6 mi · 3 min · East Providence Expressway
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12
Keep slight left to continue on East Providence Expressway
5.3 mi · 6 min · East Providence Expressway
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13
Take the exit slight right toward MA 136: Warren Rhode Island, Newport Rhode Island
1759 ft · 50 sec
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14
Turn right onto James Reynolds Road
1246 ft · 25 sec · James Reynolds Road
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15
Continue on Market Street
2.6 mi · 4 min · Market Street
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16
Continue on Market Street
59 m · 7 sec · Market Street
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17
Turn straight onto Kickemuit Road
1031 ft · 25 sec · Kickemuit Road
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18
Continue on Arlington Avenue
2274 ft · 41 sec · Arlington Avenue
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19
Turn straight onto Metacom Avenue
4.3 mi · 7 min · Metacom Avenue
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20
Continue on Metacom Avenue
1.6 km · 1 min · Metacom Avenue
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21
Turn straight onto Ferry Road
1081 ft · 18 sec · Ferry Road
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22
Continue on Mount Hope Bridge
1.1 mi · 2 min · Mount Hope Bridge
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23
Keep slight left to continue on Boyds Lane
1.2 km · 1 min · Boyds Lane
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24
Turn slight right onto East Main Road
1.8 mi · 3 min · East Main Road
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25
Turn right onto Freeborn Street
131 m · 21 sec · Freeborn Street
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26
Turn right
26 m · 6 sec
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27
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Cranston 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 short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Chance Rain Showers leaving Cranston 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 Cranston to Portsmouth?
The road trip is about 31.3 miles (50.4 km) and usually takes 00h 34m 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?
Warren is a useful midpoint, sitting about 12.6 miles from Cranston and 18.8 miles from Portsmouth.
How much longer is the road route than the straight-line distance?
The direct path is about 15.6 miles (25.1 km), while the road route adds roughly 15.7 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 7:22 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.34 one way or $8.68 round trip. Estimated CO2 is about 9.8 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Cranston and Patchy Fog near Portsmouth.
Stop Ideas Near Warren
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 Warren.
Providence station
Kingston station
Route 128 station
Westerly station
Flight Path Map
This map shows the direct air route between Cranston and Portsmouth. Straight-line distance: 15.6 mi (25.11 km).
#1 Cranston
The second most populous city in Rhode Island.
| Population | 81,142 |
| Coordinates | 41.7798200, -71.4372800 |
| Altitude | 19 |
| 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: 50 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 02m |
| 40 mph (64.37 km/h) | 00h 46m |
| 50 mph (80.47 km/h) | 00h 37m |
| 60 mph (96.56 km/h) | 00h 31m |
| 70 mph (112.65 km/h) | 00h 26m |
| 80 mph (129 km/h) | 00h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $4.34 | $8.68 |
| Mid-grade | $4.46 | $4.90 | $9.81 |
| Premium | $4.86 | $5.34 | $10.69 |
| Diesel | $6.00 | $6.60 | $13.19 |
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.