How far is Ayer, MA from Boston, MA?
The driving distance from Ayer, MA to Boston, MA is about 47.2 miles (76 km), with a travel time of about 00h 54m by car.
- The straight-line flight distance is about 30.4 miles (49 km).
- For a round trip, plan for roughly 01h 49m 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 54m.
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 Middlesex County, Massachusetts, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers
Light Rain Likely
Driving Route Map
The map below follows the saved road route between Ayer and Boston.
Turn-by-Turn Driving Directions
Step-by-step road directions between Ayer and Boston.
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1
Start on Park Street
121 m · 12 sec · Park Street
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2
Turn left onto West Main Street
1.3 km · 2 min · West Main Street
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3
Continue on Harvard Road
1158 ft · 20 sec · Harvard Road
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4
Enter the roundabout and take exit 3 toward Littleton Road
129 m · 7 sec · Littleton Road
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5
Exit the roundabout onto Littleton Road
1.9 mi · 3 min · Littleton Road
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6
Continue on Ayer Road
1.8 mi · 3 min · Ayer Road
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7
Turn right onto King Street
715 ft · 18 sec · King Street
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8
Turn left onto Taylor Street
1.1 mi · 2 min · Taylor Street
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9
Take the ramp slight right toward MA 2 East: Concord, Boston
1201 ft · 30 sec
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10
Merge slight left onto George W Stanton Highway
2864 ft · 44 sec · George W Stanton Highway
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11
Continue on Captain Isaac Davis Highway
6.3 mi · 9 min · Captain Isaac Davis Highway
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12
Continue on Union Turnpike
3019 ft · 2 min · Union Turnpike
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13
Enter the roundabout and take exit 2 toward Concord Rotary
100 m · 4 sec · Elm Street
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14
Exit the rotary onto Elm Street
1635 ft · 35 sec · Elm Street
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15
Continue on Concord Turnpike
3.7 mi · 5 min · Concord Turnpike
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16
Continue on Cambridge Turnpike Rte 2
3.5 mi · 5 min · Cambridge Turnpike Rte 2
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17
Continue on Concord Highway
3.4 mi · 5 min · Concord Highway
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18
Continue on Concord Turnpike
3.5 mi · 5 min · Concord Turnpike
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19
Take the exit slight left toward MA 16 East, US 3 North: Medford, Woburn
144 m · 14 sec
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20
Merge slight right onto Alewife Brook Parkway
1.5 km · 3 min · Alewife Brook Parkway
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21
Turn right onto Powder House Boulevard
1.5 km · 2 min · Powder House Boulevard
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22
Enter the roundabout and take exit 4 toward Powder House Square
71 m · 5 sec
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23
Exit the rotary
8 m · 1 sec
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24
Continue on Warner Street
914 ft · 20 sec · Warner Street
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25
Continue on Harvard Street
1 km · 1 min · Harvard Street
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26
Turn right onto Mystic Avenue
1.3 mi · 3 min · Mystic Avenue
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27
Take the ramp straight toward I 93 South: Boston
734 ft · 18 sec
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28
Keep slight left to continue on I 93 South: Boston
1599 ft · 39 sec
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29
Merge slight left
2 mi · 3 min
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30
Take the exit slight right toward MA 1A Toll: Airport, Government Center
889 ft · 22 sec
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31
Keep slight right to continue on Government Center
1028 ft · 31 sec
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32
Turn straight onto John F. Fitzgerald Surface Road
598 ft · 27 sec · John F. Fitzgerald Surface Road
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33
Turn right onto State Street
1486 ft · 55 sec · State Street
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34
Continue on Court Street
144 m · 20 sec · Court Street
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35
Turn left onto Tremont Street
102 m · 12 sec · Tremont Street
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36
Arrive at your destination
0 m · 1 sec · Tremont Street
Car Route Details
A richer read on the saved driving route between Ayer and Boston.
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.
Captain Isaac Davis Highway
Continue on Captain Isaac Davis Highway
6.26 mi · 00h 09m
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.
Slight Chance Rain Showers leaving Ayer and Light Rain Likely near Boston.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Ayer to Boston?
The road trip is about 47.2 miles (76 km) and usually takes 00h 54m 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?
Concord is a useful midpoint, sitting about 17.8 miles from Ayer and 29.4 miles from Boston.
How much longer is the road route than the straight-line distance?
The direct path is about 30.4 miles (49 km), while the road route adds roughly 16.8 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 4:40 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.46 one way or $12.91 round trip. Estimated CO2 is about 14.8 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers around Ayer and Light Rain Likely near Boston.
Stop Ideas Near 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 Concord.
Anderson Regional Transportation Center
Framingham station
Back Bay station
North Station
Flight Path Map
This map shows the direct air route between Ayer and Boston. Straight-line distance: 30.43 mi (48.98 km).
#1 Ayer
City in Middlesex County, Massachusetts, United States of America
| Population | 8,211 |
| Coordinates | 42.5612000, -71.5897900 |
| Altitude | 73 |
| Country | United States |
#2 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 |
End: Tremont Street (-71.060061, 42.358547)
Estimated Travel Time
Distance: 76 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 34m |
| 40 mph (64.37 km/h) | 01h 10m |
| 50 mph (80.47 km/h) | 00h 56m |
| 60 mph (96.56 km/h) | 00h 47m |
| 70 mph (112.65 km/h) | 00h 40m |
| 80 mph (129 km/h) | 00h 35m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $6.46 | $12.91 |
| Mid-grade | $4.40 | $7.30 | $14.60 |
| Premium | $4.80 | $7.97 | $15.93 |
| Diesel | $4.49 | $7.45 | $14.90 |
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.