How far is Watertown, MA from Somerville, MA?

The driving distance from Watertown, MA to Somerville, MA is about 5.8 miles (9.3 km), with a travel time of about 00h 21m by car.

  • The straight-line flight distance is about 4.4 miles (7.1 km).
  • For a round trip, plan for roughly 00h 43m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
5.78 mi
00h 21m
Flight
4.41 mi
7.09 km direct

This is an easy same-day return drive.

Learn Distance

Choose another destination from Watertown.

Flight Distance

Direct air line
4.41 mi
Kilometers
7.09 km
Flight Time

Driving Distance

Road route
5.78 mi
Kilometers
9.3 km
Drive Time
00h 21m

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 21m.

Arrival Snapshot
Arrive in Somerville
Thu, Apr 23, 1:03 AM EDT
Return by in Watertown
Thu, Apr 23, 1:24 AM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Watertown
2026-04-23T00:41
Arrive Somerville
Thu, Apr 23, 1:03 AM EDT
Route Timing
00h 21m
One way by road
Best Departure Window
7:00 AM to 7:00 PM EDT
Leave when it suits your day
Arrive between
7:22 AM to 7:22 PM EDT

This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.

Leave by
7:46 PM EDT
Keeps a same-day return open with about 01h 30m at the destination.
Back in Watertown
10:00 PM EDT
Flexible departure

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.

Mid-route stop
Cambridge
MA

The most populous city in Middlesex County, Massachusetts.

From Watertown
2.7 mi
00h 10m
To Somerville
3.1 mi
00h 10m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
60°F
Thursday

Partly Sunny

Starts
Thu, Apr 23 6:00 AM EDT
Wind
3 to 9 mph NW
Destination
60°F
Thursday

Partly Sunny

Starts
Thu, Apr 23 6:00 AM EDT
Wind
3 to 9 mph NW

Driving Route Map

The map below follows the saved road route between Watertown and Somerville.

Turn-by-Turn Driving Directions

Step-by-step road directions between Watertown and Somerville.

  1. 1

    Start on Oliver Street

    131 m · 26 sec · Oliver Street

  2. 2

    Turn sharp left onto Church Street

    149 m · 19 sec · Church Street

  3. 3

    Turn sharp right onto Marion Road

    149 m · 25 sec · Marion Road

  4. 4

    Turn left onto Spring Street

    43 m · 9 sec · Spring Street

  5. 5

    Turn right onto Common Street

    742 ft · 31 sec · Common Street

  6. 6

    Turn left onto Mount Auburn Street

    1.9 mi · 4 min · Mount Auburn Street

  7. 7

    Turn left onto Brattle Street

    1 mi · 2 min · Brattle Street

  8. 8

    Turn left onto Mason Street

    667 ft · 25 sec · Mason Street

  9. 9

    At the end of the road, turn right onto Garden Street

    980 ft · 46 sec · Garden Street

  10. 10

    Turn slight left

    55 m · 14 sec

  11. 11

    Turn left onto Peabody Street

    28 m · 4 sec · Peabody Street

  12. 12

    Turn slight right onto Cambridge Street

    757 ft · 26 sec · Cambridge Street

  13. 13

    Keep slight left to continue on Cambridge Street

    157 m · 30 sec · Cambridge Street

  14. 14

    Turn left onto Quincy Street

    131 m · 17 sec · Quincy Street

  15. 15

    At the end of the road, turn right onto Kirkland Street

    981 ft · 39 sec · Kirkland Street

  16. 16

    Turn left onto Irving Street

    103 m · 14 sec · Irving Street

  17. 17

    Continue on Scott Street

    876 ft · 37 sec · Scott Street

  18. 18

    Continue on Park Street

    1303 ft · 1 min · Park Street

  19. 19

    Turn left onto Somerville Avenue

    50 m · 10 sec · Somerville Avenue

  20. 20

    Turn right onto Central Street

    2084 ft · 1 min · Central Street

  21. 21

    Turn right onto Highland Avenue

    1117 ft · 53 sec · Highland Avenue

  22. 22

    Turn left

    50 m · 12 sec

  23. 23

    Arrive at your destination

    0 m · 1 sec

Car Route Details

A richer read on the saved driving route between Watertown and Somerville.

OSRM road route
Drive Character

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.

Directions
23 steps
18 turns on the saved route
Ramps & Exits
0
0 merges, 0 ramps or exits
Navigation Density
396.6 / 100 mi
Decision points by distance
Main Roads
Mount Auburn Street
1.9 mi · 33%
Brattle Street
1.05 mi · 18%
Central Street
0.39 mi · 7%
Park Street
0.25 mi · 4%
Cambridge Street
0.24 mi · 4%
Highland Avenue
0.21 mi · 4%
Longest Stretch

Mount Auburn Street

Turn left onto Mount Auburn Street

1.9 mi · 00h 04m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
00h 21m
Quick drive
Same-Day Return
00h 44m
Round-trip wheel time
Road vs Air
+1.4 mi
4.4 mi direct line
Halfway Stop
Cambridge
00h 10m from Watertown
Leave By
7:46 PM EDT
Flexible departure
Weather Watch

Partly Sunny leaving Watertown and Partly Sunny near Somerville.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Watertown to Somerville?

The road trip is about 5.8 miles (9.3 km) and usually takes 00h 21m 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?

Cambridge is a useful midpoint, sitting about 2.7 miles from Watertown and 3.1 miles from Somerville.

How much longer is the road route than the straight-line distance?

The direct path is about 4.4 miles (7.1 km), while the road route adds roughly 1.4 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 7:46 PM EDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $0.78 one way or $1.56 round trip. Estimated CO2 is about 1.8 kg one way.

What should you check before leaving?

Before you leave, expect Partly Sunny around Watertown and Partly Sunny near Somerville.

Stop Ideas Near Cambridge

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
These suggestions come from reviewed places and nearby services around Cambridge and the surrounding midpoint area.
Cocobeet - Boston
Food stop 4.2 mi away

Cocobeet - Boston

Boston , MA
100 City Hall Plaza, Boston, MA 02108
Rating 4.4/5 198 reviews Health food restaurant,Juice shop,Raw food restaurant,Vegan restaurant
Boston's Old City Hall
Scenic stop 4.2 mi away

Boston's Old City Hall

Boston , MA
45 School St, Boston, MA 02108, United States
Rating 4.6/5 346 reviews Tourist attraction,Historical landmark
Cambridge City Hall
Meeting point 1.7 mi away

Cambridge City Hall

Cambridge , MA
795 Massachusetts Ave, Cambridge, MA 02139
Rating 4.4/5 47 reviews City Hall,City government office
Shoppers World
Nearby stop 14.2 mi away

Shoppers World

Framingham , MA
1 Worcester Rd, Framingham, MA 01701, United States
Rating 4.3/5 2,625 reviews Shopping mall

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Cambridge.

RAIL

North Station

4 mi away
100 Legends Way
RAIL

Back Bay station

4 mi away
145 Dartmouth St.
RAIL

South Station

5 mi away
2 South Station
RAIL

Anderson Regional Transportation Center

16 mi away
100 Atlantic Ave.

Flight Path Map

This map shows the direct air route between Watertown and Somerville. Straight-line distance: 4.41 mi (7.09 km).

Watertown

#1 Watertown

City in Middlesex County, Massachusetts, United States

Population36,125
Coordinates42.3709300, -71.1828300
Altitude19
CountryUnited States
Somerville

#2 Somerville

A city in Middlesex County, Massachusetts.

Population80,935
Coordinates42.3876000, -71.0995000
Altitude28
CountryUnited States
Start: Oliver Street (-71.182812, 42.370949)
End: (-71.099387, 42.387558)

Estimated Travel Time

Distance: 9 km by road

SpeedTime
30 mph (48.3 km/h)00h 11m
40 mph (64.37 km/h)00h 08m
50 mph (80.47 km/h)00h 06m
60 mph (96.56 km/h)00h 05m
70 mph (112.65 km/h)00h 04m
80 mph (129 km/h)00h 04m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
0.2 gal
0.77 L · about $0.78
Round trip
$1.56
0.4 gal · 1.54 L
Estimated CO2
1.8 kg one way
Round trip: 3.6 kg / 8 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.89 $0.78 $1.56
Mid-grade $4.40 $0.88 $1.76
Premium $4.80 $0.96 $1.92
Diesel $4.49 $0.90 $1.80

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

There is no time difference between Watertown and Somerville. The current time is 00:41:31.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.