How far is Watertown, MA from Plymouth, MA?
The driving distance from Watertown, MA to Plymouth, MA is about 47 miles (75.7 km), with a travel time of about 01h 06m by car.
- The straight-line flight distance is about 38.8 miles (62.5 km).
- For a round trip, plan for roughly 02h 13m 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 06m.
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.
Mostly Clear
Patchy Fog then Mostly Sunny
Driving Route Map
The map below follows the saved road route between Watertown and Plymouth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Watertown and Plymouth.
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1
Start on Oliver Street
131 m · 19 sec · Oliver Street
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2
Turn right onto Church Street
1701 ft · 55 sec · Church Street
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3
At the end of the road, turn left onto Main Street
117 m · 20 sec · Main Street
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4
Turn slight right
77 m · 9 sec
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5
Turn straight onto Galen Street
2268 ft · 44 sec · Galen Street
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6
Continue on Centre Street
152 m · 19 sec · Centre Street
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7
Continue on Centre Street
97 m · 12 sec · Centre Street
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8
Turn straight onto Washington Street
693 ft · 28 sec · Washington Street
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9
Turn slight left onto Centre Street
694 ft · 22 sec · Centre Street
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10
Continue on Centre Street
21 m · 3 sec · Centre Street
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11
Take the ramp slight left toward Centre Street
653 ft · 24 sec · Centre Street
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12
Continue on Washington Street
87 m · 7 sec · Washington Street
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13
Keep slight left to continue on Washington Street
92 m · 6 sec · Washington Street
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14
Continue on Saint James Street
55 m · 4 sec · Saint James Street
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15
Take the ramp slight right toward I 90 East: Boston
1159 ft · 28 sec
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16
Merge slight left onto Massachusetts Turnpike
6.2 mi · 9 min · Massachusetts Turnpike
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17
Take the exit slight left toward I 93: South Station, Concord New Hampshire, Quincy
156 m · 13 sec
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18
Keep slight left to continue on I 93 South, I 93 North: Quincy, Concord New Hampshire
138 m · 11 sec
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19
Keep slight left to continue on I 93 South: Quincy
2957 ft · 1 min
-
20
Merge slight right onto John F. Fitzgerald Expressway
1.2 km · 1 min · John F. Fitzgerald Expressway
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21
Continue on Southeast Expressway
8 mi · 11 min · Southeast Expressway
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22
Keep slight left to continue on MA 3 South: Cape Cod
28.2 mi · 36 min
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23
Take the exit slight right toward US 44 West: Samoset Street, Carver
1311 ft · 47 sec
-
24
Turn straight onto Samoset Street
77 m · 10 sec · Samoset Street
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25
Continue on Samoset Street
1.4 km · 2 min · Samoset Street
-
26
Turn right onto Court Street
1029 ft · 35 sec · Court Street
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27
Arrive at your destination
0 m · 1 sec · Court Street
Car Route Details
A richer read on the saved driving route between Watertown and Plymouth.
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.
MA 3 South
Keep slight left to continue on MA 3 South: Cape Cod
28.2 mi · 00h 36m
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 Clear leaving Watertown and Patchy Fog then Mostly Sunny near Plymouth.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Watertown to Plymouth?
The road trip is about 47 miles (75.7 km) and usually takes 01h 06m 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 23.5 miles from Watertown and 23.5 miles from Plymouth.
How much longer is the road route than the straight-line distance?
The direct path is about 38.8 miles (62.5 km), while the road route adds roughly 8.2 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 4:16 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.46 one way or $12.91 round trip. Estimated CO2 is about 14.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Clear around Watertown and Patchy Fog then Mostly Sunny near Plymouth.
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
Brockton 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 Watertown and Plymouth. Straight-line distance: 38.85 mi (62.53 km).
#1 Watertown
City in Middlesex County, Massachusetts, United States
| Population | 36,125 |
| Coordinates | 42.3709300, -71.1828300 |
| Altitude | 19 |
| Country | United States |
#2 Plymouth
County seat town in Plymouth County, Massachusetts, United States
| Population | 62,654 |
| Coordinates | 41.9584400, -70.6672600 |
| Altitude | 23 |
| Country | United States |
End: Plymouth (-70.66726, 41.95844)
Estimated Travel Time
Distance: 76 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 34m |
| 40 mph (64.37 km/h) | 01h 10m |
| 50 mph (80.47 km/h) | 00h 56m |
| 60 mph (96.56 km/h) | 00h 47m |
| 70 mph (112.65 km/h) | 00h 40m |
| 80 mph (129 km/h) | 00h 35m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $6.46 | $12.91 |
| Mid-grade | $4.40 | $7.30 | $14.60 |
| Premium | $4.80 | $7.97 | $15.93 |
| Diesel | $4.49 | $7.45 | $14.90 |
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 10, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.