How far is Williamstown, MA from Foster, RI?
The driving distance from Williamstown, MA to Foster, RI is about 133.6 miles (215 km), with a travel time of about 03h 10m by car.
- The straight-line flight distance is about 94.8 miles (152.5 km).
- For a round trip, plan for roughly 06h 21m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 10m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
The most populous city in Hampshire County, Massachusetts.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers then Partly Sunny
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Williamstown and Foster.
Turn-by-Turn Driving Directions
Step-by-step road directions between Williamstown and Foster.
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1
Start on Spring Street
863 ft · 26 sec · Spring Street
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2
Turn right onto Walden Street
802 ft · 37 sec · Walden Street
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3
At the end of the road, turn right onto Hoxsey Street
967 ft · 48 sec · Hoxsey Street
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4
Turn left onto Main Street
1318 ft · 42 sec · Main Street
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5
Turn straight onto Cold Spring Road
4.2 mi · 8 min · Cold Spring Road
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6
Continue on New Ashford Road
2.3 mi · 3 min · New Ashford Road
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7
Continue on Route 7
2.2 mi · 3 min · Route 7
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8
Continue on New Ashford Road
1.2 mi · 2 min · New Ashford Road
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9
Continue on Williamstown Road
3.8 mi · 5 min · Williamstown Road
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10
Continue on North Main Street
1.4 mi · 2 min · North Main Street
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11
Continue on South Main Street
1.8 mi · 4 min · South Main Street
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12
Continue on North Street
1.4 mi · 3 min · North Street
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13
Turn right onto Wahconah Street
1.4 mi · 3 min · Wahconah Street
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14
Turn right onto North Street
1.1 km · 2 min · North Street
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15
Continue on South Street
2.9 mi · 6 min · South Street
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16
Continue on Pittsfield Road
2.4 mi · 4 min · Pittsfield Road
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17
Continue on Veterans Memorial Highway
2.3 mi · 3 min · Veterans Memorial Highway
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18
Continue on Lee Road
1.2 mi · 2 min · Lee Road
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19
Continue on Laurel Street
1.2 mi · 2 min · Laurel Street
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20
Continue on West Center Street
959 ft · 13 sec · West Center Street
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21
At the end of the road, turn right onto Main Street
2289 ft · 1 min · Main Street
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22
At the end of the road, turn left onto Park Street
751 ft · 27 sec · Park Street
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23
Continue on Housatonic Street
2865 ft · 1 min · Housatonic Street
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24
Take the exit slight right
1734 ft · 43 sec
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25
Keep slight right
2179 ft · 53 sec
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26
Merge slight left onto Massachusetts Turnpike
67.1 mi · 1 hr 17 min · Massachusetts Turnpike
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27
Take the exit slight right toward I 84: Sturbridge, Hartford
1513 ft · 52 sec
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28
Merge slight left onto Wilbur Cross Highway
1.2 km · 1 min · Wilbur Cross Highway
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29
Take the exit slight right toward US 20 West: Sturbridge, Palmer
1557 ft · 44 sec
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30
Merge slight left onto Charlton Road
133 m · 8 sec · Charlton Road
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31
Take the exit slight right
120 m · 15 sec
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32
Continue on Charlton Road
1538 ft · 37 sec · Charlton Road
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33
Take the exit left
91 m · 12 sec
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34
Turn straight onto Main Street
4.4 mi · 7 min · Main Street
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35
Enter the roundabout and take exit 1 toward Southbridge Rotary
8 m · 1 sec · East Main Street
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36
Exit the rotary onto East Main Street
1.1 mi · 2 min · East Main Street
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37
Continue on Sandersdale Road
1014 ft · 20 sec · Sandersdale Road
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38
Continue on Ashland Avenue
1.4 mi · 3 min · Ashland Avenue
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39
Continue on Southbridge Road
2.6 mi · 4 min · Southbridge Road
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40
Continue on Quinebaug Road
3.8 mi · 7 min · Quinebaug Road
-
41
Turn straight onto Riverside Drive
3.1 mi · 5 min · Riverside Drive
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42
Take the ramp straight
2464 ft · 1 min
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43
Merge slight left
7.6 mi · 8 min
-
44
Take the exit slight right toward CT 101: East Killingly, Dayville
1019 ft · 31 sec
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45
Turn left onto Hartford Pike
6.6 mi · 10 min · Hartford Pike
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46
Arrive at your destination
0 m · 1 sec · Hartford Pike
Car Route Details
A richer read on the saved driving route between Williamstown and Foster.
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.
Massachusetts Turnpike
Merge slight left onto Massachusetts Turnpike
67.1 mi · 01h 17m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Chance Rain Showers then Partly Sunny leaving Williamstown and Chance Rain Showers near Foster.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Williamstown to Foster?
The road trip is about 133.6 miles (215 km) and usually takes 03h 10m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Chicopee is a useful midpoint, sitting about 66.7 miles from Williamstown and 66.9 miles from Foster.
How much longer is the road route than the straight-line distance?
The direct path is about 94.8 miles (152.5 km), while the road route adds roughly 38.8 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 10:38 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $18.36 one way or $36.72 round trip. Estimated CO2 is about 41.9 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers then Partly Sunny around Williamstown and Chance Rain Showers near Foster.
Stop Ideas Near Chicopee
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 Chicopee.
Springfield Union Station
Union Station
Amherst, Massachusetts
Windsor Locks
Flight Path Map
This map shows the direct air route between Williamstown and Foster. Straight-line distance: 94.75 mi (152.48 km).
#1 Williamstown
Town in Massachusetts
| Population | 7,631 |
| Coordinates | 42.7120200, -73.2037200 |
| Altitude | 209 |
| Country | United States |
#2 Foster
Town in Providence County, Rhode Island
| Population | 4,747 |
| Coordinates | 41.8537100, -71.7581200 |
| Altitude | 216 |
| Country | United States |
End: Foster (-71.75812, 41.85371)
Estimated Travel Time
Distance: 215 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 27m |
| 40 mph (64.37 km/h) | 03h 20m |
| 50 mph (80.47 km/h) | 02h 40m |
| 60 mph (96.56 km/h) | 02h 13m |
| 70 mph (112.65 km/h) | 01h 54m |
| 80 mph (129 km/h) | 01h 40m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $18.36 | $36.72 |
| Mid-grade | $4.40 | $20.75 | $41.51 |
| Premium | $4.80 | $22.65 | $45.30 |
| Diesel | $4.49 | $21.18 | $42.37 |
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 Massachusetts · May 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.