How far is Williamstown, MA from Somerville, MA?
The driving distance from Williamstown, MA to Somerville, MA is about 131.5 miles (211.6 km), with a travel time of about 02h 51m by car.
- The straight-line flight distance is about 109.4 miles (176.1 km).
- For a round trip, plan for roughly 05h 42m 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 02h 51m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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 Hampden County, Massachusetts, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Williamstown and Somerville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Williamstown and Somerville.
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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
-
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
119.5 mi · 2 hr 19 min · Massachusetts Turnpike
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27
Take the exit slight left toward Allston-Brighton, Cambridge, Fenway Park
2628 ft · 1 min
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28
Keep slight right to continue on Cambridge, Somerville, Fenway Park
872 ft · 23 sec
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29
Turn slight right onto Cambridge Street
55 m · 6 sec · Cambridge Street
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30
Continue on River Street
1.2 km · 2 min · River Street
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31
Continue on Prospect Street
1.5 km · 3 min · Prospect Street
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32
Turn slight left onto Webster Avenue
991 ft · 40 sec · Webster Avenue
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33
Continue on Bow Street
851 ft · 40 sec · Bow Street
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34
Turn slight right onto Summer Street
923 ft · 40 sec · Summer Street
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35
Turn right onto Prescott Street
1161 ft · 55 sec · Prescott Street
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36
Turn left onto Highland Avenue
552 ft · 32 sec · Highland Avenue
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37
Turn right
50 m · 12 sec
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38
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Williamstown and Somerville.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Massachusetts Turnpike
Merge slight left onto Massachusetts Turnpike
120 mi · 02h 19m
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.
Mostly Sunny leaving Williamstown and Partly Sunny near Somerville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Williamstown to Somerville?
The road trip is about 131.5 miles (211.6 km) and usually takes 02h 51m 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?
Ludlow is a useful midpoint, sitting about 77.9 miles from Williamstown and 53.6 miles from Somerville.
How much longer is the road route than the straight-line distance?
The direct path is about 109.4 miles (176.1 km), while the road route adds roughly 22.1 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 12:48 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $18.05 one way or $36.10 round trip. Estimated CO2 is about 41.2 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Williamstown and Partly Sunny near Somerville.
Stop Ideas Near Ludlow
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 Ludlow.
Springfield Union Station
Union Station
Amherst, Massachusetts
Windsor Locks
Flight Path Map
This map shows the direct air route between Williamstown and Somerville. Straight-line distance: 109.42 mi (176.1 km).
#1 Williamstown
Town in Massachusetts
| Population | 7,631 |
| Coordinates | 42.7120200, -73.2037200 |
| Altitude | 209 |
| Country | United States |
#2 Somerville
A city in Middlesex County, Massachusetts.
| Population | 80,935 |
| Coordinates | 42.3876000, -71.0995000 |
| Altitude | 28 |
| Country | United States |
End: (-71.099387, 42.387558)
Estimated Travel Time
Distance: 212 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 22m |
| 40 mph (64.37 km/h) | 03h 17m |
| 50 mph (80.47 km/h) | 02h 37m |
| 60 mph (96.56 km/h) | 02h 11m |
| 70 mph (112.65 km/h) | 01h 52m |
| 80 mph (129 km/h) | 01h 38m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $18.05 | $36.10 |
| Mid-grade | $4.40 | $20.40 | $40.80 |
| Premium | $4.80 | $22.27 | $44.53 |
| Diesel | $4.49 | $20.82 | $41.65 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.