How far is South Duxbury, MA from Cambridge, MA?
The driving distance from South Duxbury, MA to Cambridge, MA is about 39.3 miles (63.3 km), with a travel time of about 01h 00m by car.
- The straight-line flight distance is about 32.6 miles (52.4 km).
- For a round trip, plan for roughly 02h 00m 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 01h 00m.
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.
The most populous city in Norfolk County, Massachusetts.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between South Duxbury and Cambridge.
Turn-by-Turn Driving Directions
Step-by-step road directions between South Duxbury and Cambridge.
-
1
Start on the route
25 m · 11 sec
-
2
Turn left onto Washington Street
30 m · 4 sec · Washington Street
-
3
Enter the roundabout and take exit 1 toward Depot Street
7 m · 1 sec · Depot Street
-
4
Exit the roundabout onto Depot Street
1.5 km · 2 min · Depot Street
-
5
Turn slight right onto Tremont Street
1 mi · 2 min · Tremont Street
-
6
Turn left onto West Street
1.4 mi · 2 min · West Street
-
7
Continue on Congress Street
2147 ft · 43 sec · Congress Street
-
8
Enter the roundabout and take exit 2 toward Congress Street
21 m · 2 sec · Congress Street
-
9
Exit the roundabout onto Congress Street
36 m · 2 sec · Congress Street
-
10
Take the ramp straight toward MA 3 North: Quincy, Boston
1375 ft · 34 sec
-
11
Merge slight left onto Pilgrims Highway
19.8 mi · 25 min · Pilgrims Highway
-
12
Continue on I 93 North: Boston
8.4 mi · 11 min
-
13
Continue on John F. Fitzgerald Expressway
2.5 mi · 4 min · John F. Fitzgerald Expressway
-
14
Take the exit slight right toward Storrow Drive
2408 ft · 59 sec
-
15
Keep slight left to continue on MA 28 North: Leverett Circle, North Station
635 ft · 16 sec
-
16
Keep slight left to continue on MA 28 North: O'Brien Highway
65 m · 9 sec
-
17
Continue on Charles River Dam Road
1802 ft · 1 min · Charles River Dam Road
-
18
Continue on Monsignor O'Brien Highway
955 ft · 35 sec · Monsignor O'Brien Highway
-
19
Turn left onto Cambridge Street
1.4 mi · 5 min · Cambridge Street
-
20
Turn right onto Line Street
1062 ft · 52 sec · Line Street
-
21
Turn left onto Leonard Avenue
140 m · 20 sec · Leonard Avenue
-
22
Arrive at your destination
0 m · 1 sec · Leonard Avenue
Car Route Details
A richer read on the saved driving route between South Duxbury and Cambridge.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Pilgrims Highway
Merge slight left onto Pilgrims Highway
19.8 mi · 00h 25m
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 Likely leaving South Duxbury and Rain Showers Likely near Cambridge.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from South Duxbury to Cambridge?
The road trip is about 39.3 miles (63.3 km) and usually takes 01h 00m 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?
Weymouth is a useful midpoint, sitting about 18.8 miles from South Duxbury and 20.6 miles from Cambridge.
How much longer is the road route than the straight-line distance?
The direct path is about 32.6 miles (52.4 km), while the road route adds roughly 6.7 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 4:30 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.41 one way or $10.81 round trip. Estimated CO2 is about 12.4 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around South Duxbury and Rain Showers Likely near Cambridge.
Stop Ideas Near Weymouth
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Cocobeet - Boston
Boston's Old City Hall
Chelsea City Hall
Marriage Certificates Registry
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Weymouth.
Route 128 station
South Station
Back Bay station
North Station
Flight Path Map
This map shows the direct air route between South Duxbury and Cambridge. Straight-line distance: 32.55 mi (52.39 km).
#1 South Duxbury
Census-designated place in Plymouth County, Massachusetts
| Population | 3,360 |
| Coordinates | 42.0231600, -70.6828100 |
| Altitude | 16 |
| Country | United States |
#2 Cambridge
The most populous city in Middlesex County, Massachusetts.
| Population | 119,192 |
| Coordinates | 42.3751000, -71.1056100 |
| Altitude | 5 |
| Country | United States |
End: Leonard Avenue (-71.105735, 42.375115)
Estimated Travel Time
Distance: 63 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 18m |
| 40 mph (64.37 km/h) | 00h 59m |
| 50 mph (80.47 km/h) | 00h 47m |
| 60 mph (96.56 km/h) | 00h 39m |
| 70 mph (112.65 km/h) | 00h 33m |
| 80 mph (129 km/h) | 00h 29m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $5.41 | $10.81 |
| Mid-grade | $4.40 | $6.11 | $12.22 |
| Premium | $4.80 | $6.67 | $13.34 |
| Diesel | $4.49 | $6.24 | $12.48 |
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 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.