How far is Waltham, MA from Weymouth, MA?
The driving distance from Waltham, MA to Weymouth, MA is about 26 miles (41.9 km), with a travel time of about 00h 42m by car.
- The straight-line flight distance is about 18.6 miles (29.9 km).
- For a round trip, plan for roughly 01h 25m 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 42m.
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.
This historic Boston neighborhood, often called "Southie," is situated south of downtown Boston and the Fort Point Channel, with Dorchester Bay to its east and south.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Waltham and Weymouth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Waltham and Weymouth.
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1
Start on Main Street
2.8 mi · 6 min · Main Street
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2
Turn slight right
77 m · 9 sec
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3
Turn straight onto Galen Street
2268 ft · 44 sec · Galen Street
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4
Continue on Centre Street
152 m · 19 sec · Centre Street
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5
Continue on Centre Street
97 m · 12 sec · Centre Street
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6
Turn straight onto Washington Street
693 ft · 28 sec · Washington Street
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7
Turn slight left onto Centre Street
694 ft · 22 sec · Centre Street
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8
Continue on Centre Street
21 m · 3 sec · Centre Street
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9
Take the ramp slight left toward Centre Street
653 ft · 24 sec · Centre Street
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10
Continue on Washington Street
87 m · 7 sec · Washington Street
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11
Keep slight left to continue on Washington Street
92 m · 6 sec · Washington Street
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12
Continue on Saint James Street
55 m · 4 sec · Saint James Street
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13
Take the ramp slight right toward I 90 East: Boston
1159 ft · 28 sec
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14
Merge slight left onto Massachusetts Turnpike
6.2 mi · 9 min · Massachusetts Turnpike
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15
Take the exit slight left toward I 93: South Station, Concord New Hampshire, Quincy
156 m · 13 sec
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16
Keep slight left to continue on I 93 South, I 93 North: Quincy, Concord New Hampshire
138 m · 11 sec
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17
Keep slight left to continue on I 93 South: Quincy
2957 ft · 1 min
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18
Merge slight right onto John F. Fitzgerald Expressway
1.2 km · 1 min · John F. Fitzgerald Expressway
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19
Continue on Southeast Expressway
8 mi · 11 min · Southeast Expressway
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20
Keep slight left to continue on MA 3 South: Cape Cod
2.1 mi · 3 min
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21
Take the exit slight right toward Braintree, South Braintree, Braintree Station, Registry of Motor Vehicles
1332 ft · 38 sec
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22
Enter the roundabout and take exit 3 toward Union Street Rotary
1306 ft · 26 sec · Union Street
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23
Exit the rotary onto Union Street
1.2 mi · 2 min · Union Street
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24
Continue on Commercial Street
2095 ft · 42 sec · Commercial Street
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25
Continue on Commercial Street
131 m · 18 sec · Commercial Street
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26
Continue on Washington Street
1942 ft · 39 sec · Washington Street
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27
Turn left onto Broad Street
1.3 km · 1 min · Broad Street
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28
Turn left onto Academy Avenue
2894 ft · 1 min · Academy Avenue
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29
Turn right
74 m · 20 sec
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30
At the end of the road, turn right
85 m · 20 sec
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31
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Waltham and Weymouth.
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.
Southeast Expressway
Continue on Southeast Expressway
7.98 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.
Partly Sunny leaving Waltham and Partly Sunny near Weymouth.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Waltham to Weymouth?
The road trip is about 26 miles (41.9 km) and usually takes 00h 42m 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?
South Boston is a useful midpoint, sitting about 13 miles from Waltham and 13 miles from Weymouth.
How much longer is the road route than the straight-line distance?
The direct path is about 18.6 miles (29.9 km), while the road route adds roughly 7.4 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 7:04 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.58 one way or $7.16 round trip. Estimated CO2 is about 8.2 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Waltham and Partly Sunny near Weymouth.
Stop Ideas Near South Boston
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 South Boston.
Flight Path Map
This map shows the direct air route between Waltham and Weymouth. Straight-line distance: 18.55 mi (29.85 km).
#1 Waltham
A city in Middlesex County, Massachusetts.
| Population | 62,069 |
| Coordinates | 42.3764900, -71.2356100 |
| Altitude | 20 |
| Country | United States |
#2 Weymouth
The most populous city in Norfolk County, Massachusetts.
| Population | 58,104 |
| Coordinates | 42.2209300, -70.9397700 |
| Altitude | 31 |
| Country | United States |
End: Weymouth (-70.93977, 42.22093)
Estimated Travel Time
Distance: 42 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 52m |
| 40 mph (64.37 km/h) | 00h 39m |
| 50 mph (80.47 km/h) | 00h 31m |
| 60 mph (96.56 km/h) | 00h 26m |
| 70 mph (112.65 km/h) | 00h 22m |
| 80 mph (129 km/h) | 00h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $3.58 | $7.16 |
| Mid-grade | $4.40 | $4.05 | $8.09 |
| Premium | $4.80 | $4.42 | $8.83 |
| Diesel | $4.49 | $4.13 | $8.26 |
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.