How far is Groton, MA from Waltham, MA?
The driving distance from Groton, MA to Waltham, MA is about 29.6 miles (47.7 km), with a travel time of about 00h 43m by car.
- The straight-line flight distance is about 23.7 miles (38.1 km).
- For a round trip, plan for roughly 01h 27m 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 43m.
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, United States
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 Groton and Waltham.
Turn-by-Turn Driving Directions
Step-by-step road directions between Groton and Waltham.
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1
Start on the route
27 m · 11 sec
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2
At the end of the road, turn left onto Main Street
1.3 km · 2 min · Main Street
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3
Keep slight left to continue on Boston Road
3.9 mi · 7 min · Boston Road
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4
Continue on Great Road
9.1 mi · 17 min · Great Road
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5
Continue on Elm Street
3099 ft · 59 sec · Elm Street
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6
Enter the roundabout and take exit 3 toward Concord Rotary
156 m · 7 sec · Elm Street
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7
Exit the rotary onto Elm Street
1635 ft · 35 sec · Elm Street
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8
Continue on Concord Turnpike
3.7 mi · 5 min · Concord Turnpike
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9
Continue on Cambridge Turnpike Rte 2
3.5 mi · 5 min · Cambridge Turnpike Rte 2
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10
Continue on Concord Highway
1307 ft · 25 sec · Concord Highway
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11
Take the exit slight right toward I 95 South: Attleboro
2583 ft · 1 min
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12
Merge slight left onto Yankee Division Highway
1.9 mi · 3 min · Yankee Division Highway
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13
Take the exit slight right toward Totten Pond Road, Third Avenue
983 ft · 34 sec
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14
Turn straight onto Winter Street
650 ft · 13 sec · Winter Street
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15
Continue on Totten Pond Road
1.3 mi · 2 min · Totten Pond Road
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16
Turn slight right onto Lexington Street
1.5 km · 3 min · Lexington Street
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17
At the end of the road, turn left onto Main Street
13 m · 1 sec · Main Street
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18
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Groton and Waltham.
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.
Great Road
Continue on Great Road
9.11 mi · 00h 17m
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 Groton and Partly Sunny near Waltham.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Groton to Waltham?
The road trip is about 29.6 miles (47.7 km) and usually takes 00h 43m 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?
Acton is a useful midpoint, sitting about 13.6 miles from Groton and 16 miles from Waltham.
How much longer is the road route than the straight-line distance?
The direct path is about 23.7 miles (38.1 km), while the road route adds roughly 5.9 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 7:02 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.08 one way or $8.17 round trip. Estimated CO2 is about 9.3 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Groton and Partly Sunny near Waltham.
Stop Ideas Near Acton
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Acton.
Framingham station
Anderson Regional Transportation Center
Back Bay station
North Station
Flight Path Map
This map shows the direct air route between Groton and Waltham. Straight-line distance: 23.69 mi (38.12 km).
#1 Groton
Town in Connecticut
| Population | 11,256 |
| Coordinates | 42.6112000, -71.5745100 |
| Altitude | 101 |
| Country | United States |
#2 Waltham
A city in Middlesex County, Massachusetts.
| Population | 62,069 |
| Coordinates | 42.3764900, -71.2356100 |
| Altitude | 20 |
| Country | United States |
End: Main Street (-71.235588, 42.376412)
Estimated Travel Time
Distance: 48 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 59m |
| 40 mph (64.37 km/h) | 00h 44m |
| 50 mph (80.47 km/h) | 00h 35m |
| 60 mph (96.56 km/h) | 00h 29m |
| 70 mph (112.65 km/h) | 00h 25m |
| 80 mph (129 km/h) | 00h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $4.08 | $8.17 |
| Mid-grade | $4.40 | $4.62 | $9.23 |
| Premium | $4.80 | $5.04 | $10.08 |
| Diesel | $4.49 | $4.71 | $9.42 |
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.