How far is Charlton, MA from Waltham, MA?
The driving distance from Charlton, MA to Waltham, MA is about 45.9 miles (73.8 km), with a travel time of about 00h 55m by car.
- The straight-line flight distance is about 41.1 miles (66.1 km).
- For a round trip, plan for roughly 01h 50m 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 55m.
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.
Partly Sunny
Driving Route Map
The map below follows the saved road route between Charlton and Waltham.
Turn-by-Turn Driving Directions
Step-by-step road directions between Charlton and Waltham.
-
1
Start on the route
20 m · 10 sec
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2
Turn left onto Main Street
1494 ft · 40 sec · Main Street
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3
Turn right onto L Stevens Road
2445 ft · 1 min · L Stevens Road
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4
Turn right onto Worcester Road
2.9 mi · 4 min · Worcester Road
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5
Continue on Southbridge Road
2950 ft · 51 sec · Southbridge Road
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6
Enter the roundabout and take exit 1 toward Southbridge Road
34 m · 4 sec · Southbridge Road
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7
Exit the roundabout onto Southbridge Road
1.6 mi · 3 min · Southbridge Road
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8
Continue on Southbridge Street
1 km · 1 min · Southbridge Street
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9
Continue on Southbridge Street
1.6 km · 2 min · Southbridge Street
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10
Take the ramp slight right toward I 90
2775 ft · 2 min
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11
Keep slight right to continue on I 90 East
1971 ft · 1 min
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12
Merge slight left onto Massachusetts Turnpike
32.3 mi · 37 min · Massachusetts Turnpike
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13
Take the exit slight right toward I 95: Portsmouth New Hampshire, Providence Rhode Island
2059 ft · 50 sec
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14
Continue straight
1157 ft · 28 sec
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15
Continue straight
915 ft · 22 sec
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16
Keep slight left to continue on I 95 North: Waltham, Portsmouth New Hampshire
2698 ft · 1 min
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17
Keep slight right to continue on MA 30: Newton, Weston
719 ft · 20 sec
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18
Keep slight right to continue on MA 30 East: Newton
40 m · 4 sec
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19
Turn slight right onto Commonwealth Avenue
1.3 km · 1 min · Commonwealth Avenue
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20
Turn left onto Lexington Street
1.6 km · 2 min · Lexington Street
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21
Continue on Moody Street
1.1 mi · 3 min · Moody Street
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22
Turn right onto Main Street
125 m · 9 sec · Main Street
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23
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Charlton and Waltham.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Massachusetts Turnpike
Merge slight left onto Massachusetts Turnpike
32.3 mi · 00h 37m
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 near Waltham.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Charlton to Waltham?
The road trip is about 45.9 miles (73.8 km) and usually takes 00h 55m 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?
Westborough is a useful midpoint, sitting about 22.6 miles from Charlton and 23.2 miles from Waltham.
How much longer is the road route than the straight-line distance?
The direct path is about 41.1 miles (66.1 km), while the road route adds roughly 4.8 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 $6.30 one way or $12.60 round trip. Estimated CO2 is about 14.4 kg one way.
What should you check before leaving?
Before arriving, the latest forecast around Waltham is Partly Sunny.
Stop Ideas Near Westborough
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 Westborough.
Union Station
Framingham station
Route 128 station
Back Bay station
Flight Path Map
This map shows the direct air route between Charlton and Waltham. Straight-line distance: 41.08 mi (66.11 km).
#1 Charlton
Town in Worcester County, Massachusetts, United States of America
| Population | 13,698 |
| Coordinates | 42.1356500, -71.9700700 |
| Altitude | 271 |
| 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: 74 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 31m |
| 40 mph (64.37 km/h) | 01h 08m |
| 50 mph (80.47 km/h) | 00h 54m |
| 60 mph (96.56 km/h) | 00h 45m |
| 70 mph (112.65 km/h) | 00h 39m |
| 80 mph (129 km/h) | 00h 34m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $6.30 | $12.60 |
| Mid-grade | $4.40 | $7.12 | $14.25 |
| Premium | $4.80 | $7.77 | $15.55 |
| Diesel | $4.49 | $7.27 | $14.54 |
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.