How far is Boston, MA from Sudbury, MA?
The driving distance from Boston, MA to Sudbury, MA is about 21.2 miles (34.1 km), with a travel time of about 00h 34m by car.
- The straight-line flight distance is about 18.3 miles (29.4 km).
- For a round trip, plan for roughly 01h 08m 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 34m.
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.
The most populous city in Middlesex County, Massachusetts.
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 Boston and Sudbury.
Turn-by-Turn Driving Directions
Step-by-step road directions between Boston and Sudbury.
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1
Start on Tremont Street
1.2 km · 3 min · Tremont Street
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2
Continue on Tremont Street
92 m · 15 sec · Tremont Street
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3
Continue on Tremont Street
147 m · 21 sec · Tremont Street
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4
Turn right onto Marginal Road
96 m · 13 sec · Marginal Road
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5
Take the ramp straight toward I 90 West, Massachusetts Turnpike Toll West
753 ft · 12 sec
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6
Merge slight left onto Massachusetts Turnpike
10.3 mi · 14 min · Massachusetts Turnpike
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7
Take the exit slight right toward MA 30: Weston
1480 ft · 36 sec
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8
Turn straight onto Park Road
726 ft · 27 sec · Park Road
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9
Turn left onto South Avenue
142 m · 12 sec · South Avenue
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10
Turn right onto Newton Street
1.8 mi · 3 min · Newton Street
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11
Continue on Wellesley Street
151 m · 12 sec · Wellesley Street
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12
Continue on School Street
2542 ft · 58 sec · School Street
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13
Turn left onto Boston Post Road Bypass
3.4 mi · 5 min · Boston Post Road Bypass
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14
Turn right onto Cochituate Road
609 ft · 22 sec · Cochituate Road
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15
Continue on Old Sudbury Road
3.1 mi · 5 min · Old Sudbury Road
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16
Continue on Hudson Road
1073 ft · 23 sec · Hudson Road
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17
Arrive at your destination
0 m · 1 sec · Hudson Road
Car Route Details
A richer read on the saved driving route between Boston and Sudbury.
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.
Massachusetts Turnpike
Merge slight left onto Massachusetts Turnpike
10.3 mi · 00h 14m
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 Boston and Partly Sunny near Sudbury.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Boston to Sudbury?
The road trip is about 21.2 miles (34.1 km) and usually takes 00h 34m 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?
Newton is a useful midpoint, sitting about 10.6 miles from Boston and 10.6 miles from Sudbury.
How much longer is the road route than the straight-line distance?
The direct path is about 18.3 miles (29.4 km), while the road route adds roughly 2.9 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 Partly Sunny around Boston and Partly Sunny near Sudbury.
Stop Ideas Near Newton
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Cocobeet - Boston
Boston's Old City Hall
Cambridge City Hall
Shoppers World
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Newton.
Back Bay station
North Station
South Station
Route 128 station
Flight Path Map
This map shows the direct air route between Boston and Sudbury. Straight-line distance: 18.27 mi (29.41 km).
#1 Boston
The twenty-first most populous city in the United States and the center of the Boston metropolitan area.
| Population | 691,531 |
| Coordinates | 42.3584300, -71.0597700 |
| Altitude | 14 |
| Country | United States |
#2 Sudbury
Town in Middlesex County, Massachusetts, United States.
| Population | 19,453 |
| Coordinates | 42.3834300, -71.4161700 |
| Altitude | 56 |
| Country | United States |
End: Sudbury (-71.41617, 42.38343)
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.