How far is Weymouth, MA from Somerville, MA?
The driving distance from Weymouth, MA to Somerville, MA is about 21.3 miles (34.3 km), with a travel time of about 00h 33m by car.
- The straight-line flight distance is about 14.1 miles (22.7 km).
- For a round trip, plan for roughly 01h 07m 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 33m.
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 Massachusetts
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain Likely
Slight Chance Light Rain then Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Weymouth and Somerville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Weymouth and Somerville.
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1
Start on the route
120 m · 31 sec
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2
At the end of the road, turn right onto Middle Street
1433 ft · 32 sec · Middle Street
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3
Turn right onto Broad Street
1.4 mi · 2 min · Broad Street
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4
Turn right onto Washington Street
2276 ft · 44 sec · Washington Street
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5
Turn left onto Commercial Street
2263 ft · 53 sec · Commercial Street
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6
Continue on Union Street
1.2 mi · 2 min · Union Street
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7
Enter the roundabout and take exit 1 toward Union Street Rotary
13 m · 1 sec
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8
Exit the rotary onto MA 3 North: Boston
1460 ft · 36 sec
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9
Merge slight left onto Pilgrims Highway
1.4 mi · 2 min · Pilgrims Highway
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10
Continue on I 93 North: Boston
8.4 mi · 11 min
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11
Continue on John F. Fitzgerald Expressway
3.2 mi · 5 min · John F. Fitzgerald Expressway
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12
Keep slight right to continue on I 93 North: Concord NH
3075 ft · 47 sec
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13
Take the exit slight right toward Sullivan Square, Somerville
2135 ft · 1 min
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14
Turn left onto Cambridge Street
1270 ft · 46 sec · Cambridge Street
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15
Continue on Washington Street
2455 ft · 1 min · Washington Street
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16
Turn right onto McGrath Highway
1306 ft · 26 sec · McGrath Highway
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17
Turn left onto Medford Street
101 m · 12 sec · Medford Street
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18
Keep slight left to continue on Highland Avenue
2280 ft · 2 min · Highland Avenue
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19
Turn right
50 m · 12 sec
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20
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Weymouth and Somerville.
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.
I 93 North
Continue on I 93 North: Boston
8.41 mi · 00h 11m
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.
Light Rain Likely leaving Weymouth and Slight Chance Light Rain then Chance Rain Showers near Somerville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Weymouth to Somerville?
The road trip is about 21.3 miles (34.3 km) and usually takes 00h 33m 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?
Milton is a useful midpoint, sitting about 9.8 miles from Weymouth and 11.5 miles from Somerville.
How much longer is the road route than the straight-line distance?
The direct path is about 14.1 miles (22.7 km), while the road route adds roughly 7.2 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 $2.92 one way or $5.84 round trip. Estimated CO2 is about 6.7 kg one way.
What should you check before leaving?
Before you leave, expect Light Rain Likely around Weymouth and Slight Chance Light Rain then Chance Rain Showers near Somerville.
Stop Ideas Near Milton
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Cocobeet - Boston
Boston's Old City Hall
Cambridge City Hall
City Hall Plaza
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Milton.
Route 128 station
Back Bay station
South Station
North Station
Flight Path Map
This map shows the direct air route between Weymouth and Somerville. Straight-line distance: 14.12 mi (22.72 km).
#1 Weymouth
The most populous city in Norfolk County, Massachusetts.
| Population | 58,104 |
| Coordinates | 42.2209300, -70.9397700 |
| Altitude | 31 |
| 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: 34 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 42m |
| 40 mph (64.37 km/h) | 00h 31m |
| 50 mph (80.47 km/h) | 00h 25m |
| 60 mph (96.56 km/h) | 00h 21m |
| 70 mph (112.65 km/h) | 00h 18m |
| 80 mph (129 km/h) | 00h 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $2.92 | $5.84 |
| Mid-grade | $4.40 | $3.30 | $6.60 |
| Premium | $4.80 | $3.60 | $7.20 |
| Diesel | $4.49 | $3.37 | $6.73 |
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.