How far is Chatham, MA from Somerville, MA?
The driving distance from Chatham, MA to Somerville, MA is about 91.6 miles (147.4 km), with a travel time of about 01h 45m by car.
- The straight-line flight distance is about 76.1 miles (122.5 km).
- For a round trip, plan for roughly 03h 30m 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 45m.
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.
Town in Massachusetts
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
A saved road route is not available yet, so the map falls back to a straight-line overview.
Turn-by-Turn Driving Directions
Step-by-step road directions between Chatham and Somerville.
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 Sunny leaving Chatham and Sunny near Somerville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Chatham to Somerville?
The road trip is about 91.6 miles (147.4 km) and usually takes 01h 45m 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?
Duxbury is a useful midpoint, sitting about 38.1 miles from Chatham and 53.5 miles from Somerville.
How much longer is the road route than the straight-line distance?
The direct path is about 76.1 miles (122.5 km), while the road route adds roughly 15.5 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 3:00 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.56 one way or $25.13 round trip. Estimated CO2 is about 28.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Chatham and Sunny near Somerville.
Stop Ideas Near Duxbury
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 Duxbury.
Route 128 station
South Station
Back Bay station
North Station
Flight Path Map
This map shows the direct air route between Chatham and Somerville. Straight-line distance: 76.14 mi (122.54 km).
#1 Chatham
Town in Massachusetts, USA
| Population | 5,994 |
| Coordinates | 41.6820600, -69.9597400 |
| Altitude | 4 |
| Country | United States |
#2 Somerville
A city in Middlesex County, Massachusetts.
| Population | 80,935 |
| Coordinates | 42.3876000, -71.0995000 |
| Altitude | 28 |
| Country | United States |
End: (-71.099387, 42.387558)
Estimated Travel Time
Distance: 147 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 03m |
| 40 mph (64.37 km/h) | 02h 17m |
| 50 mph (80.47 km/h) | 01h 49m |
| 60 mph (96.56 km/h) | 01h 31m |
| 70 mph (112.65 km/h) | 01h 18m |
| 80 mph (129 km/h) | 01h 08m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $12.56 | $25.13 |
| Mid-grade | $4.40 | $14.20 | $28.40 |
| Premium | $4.80 | $15.50 | $31.00 |
| Diesel | $4.49 | $14.50 | $28.99 |
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.