How far is Cambridge, MA from Groton, MA?
The driving distance from Cambridge, MA to Groton, MA is about 32 miles (51.5 km), with a travel time of about 00h 58m by car.
- The straight-line flight distance is about 29 miles (46.6 km).
- For a round trip, plan for roughly 01h 56m 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 00h 58m.
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.
City in Middlesex County, 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 Cambridge and Groton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Cambridge and Groton.
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1
Start on Leonard Avenue
81 m · 14 sec · Leonard Avenue
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2
Turn right onto Cambridge Street
1.1 km · 3 min · Cambridge Street
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3
Continue on Cambridge Street
33 m · 4 sec · Cambridge Street
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4
Turn left onto Massachusetts Avenue
49 m · 7 sec · Massachusetts Avenue
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5
Turn right onto Garden Street
1679 ft · 1 min · Garden Street
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6
Continue on Concord Avenue
1.1 mi · 3 min · Concord Avenue
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7
Enter the roundabout and take exit 2 toward Brodette Memorial Circle
14 m · 2 sec · Concord Avenue
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8
Exit the rotary onto Concord Avenue
875 ft · 32 sec · Concord Avenue
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9
Keep slight right to continue on Alewife Brook Parkway
1 km · 49 sec · Alewife Brook Parkway
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10
Keep slight left to continue on Concord Turnpike
4.1 mi · 6 min · Concord Turnpike
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11
Continue on Concord Highway
2.9 mi · 4 min · Concord Highway
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12
Continue on Cambridge Turnpike
3.3 mi · 5 min · Cambridge Turnpike
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13
Continue on Concord Turnpike
3.9 mi · 6 min · Concord Turnpike
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14
Continue on Elm Street
1635 ft · 35 sec · Elm Street
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15
Enter the roundabout and take exit 2 toward Concord Rotary
69 m · 3 sec · Elm Street
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16
Exit the rotary onto Elm Street
3128 ft · 60 sec · Elm Street
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17
Continue on Great Road
9.1 mi · 17 min · Great Road
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18
Continue on Boston Road
3.9 mi · 7 min · Boston Road
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19
Continue on Main Street
1 km · 2 min · Main Street
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20
Keep slight right to continue on Main Street
534 ft · 16 sec · Main Street
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21
Turn right
41 m · 15 sec
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22
At the end of the road, turn left
41 m · 14 sec
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23
Turn left
11 m · 3 sec
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24
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Cambridge and Groton.
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 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.
Partly Sunny leaving Cambridge and Partly Sunny near Groton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Cambridge to Groton?
The road trip is about 32 miles (51.5 km) and usually takes 00h 58m 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?
West Concord is a useful midpoint, sitting about 16 miles from Cambridge and 16 miles from Groton.
How much longer is the road route than the straight-line distance?
The direct path is about 29 miles (46.6 km), while the road route adds roughly 3 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 4:34 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.40 one way or $8.79 round trip. Estimated CO2 is about 10 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Cambridge and Partly Sunny near Groton.
Stop Ideas Near West Concord
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 West Concord.
Framingham station
Anderson Regional Transportation Center
Back Bay station
North Station
Flight Path Map
This map shows the direct air route between Cambridge and Groton. Straight-line distance: 28.92 mi (46.55 km).
#1 Cambridge
The most populous city in Middlesex County, Massachusetts.
| Population | 119,192 |
| Coordinates | 42.3751000, -71.1056100 |
| Altitude | 5 |
| Country | United States |
#2 Groton
Town in Connecticut
| Population | 11,256 |
| Coordinates | 42.6112000, -71.5745100 |
| Altitude | 101 |
| Country | United States |
End: Groton (-71.57451, 42.6112)
Estimated Travel Time
Distance: 52 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 04m |
| 40 mph (64.37 km/h) | 00h 48m |
| 50 mph (80.47 km/h) | 00h 38m |
| 60 mph (96.56 km/h) | 00h 32m |
| 70 mph (112.65 km/h) | 00h 27m |
| 80 mph (129 km/h) | 00h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $4.40 | $8.79 |
| Mid-grade | $4.40 | $4.97 | $9.94 |
| Premium | $4.80 | $5.42 | $10.85 |
| Diesel | $4.49 | $5.07 | $10.14 |
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.