How far is Saint Charles, MO from Marthasville, MO?
The driving distance from Saint Charles, MO to Marthasville, MO is about 41.2 miles (66.3 km), with a travel time of about 01h 02m by car.
- The straight-line flight distance is about 32.9 miles (52.9 km).
- For a round trip, plan for roughly 02h 04m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
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 02m.
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 Saint Charles County, Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Saint Charles and Marthasville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Charles and Marthasville.
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1
Start on North Second Street
1551 ft · 1 min · North Second Street
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2
Turn right onto First Capitol Drive
1.4 km · 2 min · First Capitol Drive
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3
Turn left onto First Capitol Drive
8.3 mi · 12 min · First Capitol Drive
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4
Take the exit slight right toward MO 94 West: Weldon Spring
3.8 mi · 6 min
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5
Keep slight left
1.3 mi · 2 min
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6
Turn right
15.3 mi · 22 min
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7
At the end of the road, turn left
3.1 mi · 4 min
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8
Continue straight
3.6 mi · 6 min
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9
Continue straight
1.1 km · 2 min
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10
At the end of the road, turn right
3.4 mi · 5 min
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11
Turn right onto One Street
1966 ft · 56 sec · One Street
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12
At the end of the road, turn right onto East Main Street
758 ft · 23 sec · East Main Street
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13
Turn right onto South 2nd Street
38 m · 5 sec · South 2nd Street
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14
Arrive at your destination
0 m · 1 sec · South 2nd Street
Car Route Details
A richer read on the saved driving route between Saint Charles and Marthasville.
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.
Longest stretch
Turn right
15.3 mi · 00h 22m
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 Saint Charles and Mostly Sunny near Marthasville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Saint Charles to Marthasville?
The road trip is about 41.2 miles (66.3 km) and usually takes 01h 02m 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?
New Melle is a useful midpoint, sitting about 20.6 miles from Saint Charles and 20.6 miles from Marthasville.
How much longer is the road route than the straight-line distance?
The direct path is about 32.9 miles (52.9 km), while the road route adds roughly 8.3 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 CDT. If you want a more comfortable same-day return, try to leave by 4:26 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.47 one way or $10.94 round trip. Estimated CO2 is about 12.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Saint Charles and Mostly Sunny near Marthasville.
Stop Ideas Near New Melle
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall Park
City of O'Fallon
Swingley Ridge @ Chesterfield City Hall SB
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to New Melle.
Washington
Kirkwood
Hermann
Gateway Transportation Center
Flight Path Map
This map shows the direct air route between Saint Charles and Marthasville. Straight-line distance: 32.88 mi (52.92 km).
#1 Saint Charles
A city in St.
| Population | 71,761 |
| Coordinates | 38.7839400, -90.4812300 |
| Altitude | 147 |
| Country | United States |
#2 Marthasville
City in Missouri
| Population | 1,198 |
| Coordinates | 38.6283800, -91.0576400 |
| Altitude | 171 |
| Country | United States |
End: Marthasville (-91.05764, 38.62838)
Estimated Travel Time
Distance: 66 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 22m |
| 40 mph (64.37 km/h) | 01h 01m |
| 50 mph (80.47 km/h) | 00h 49m |
| 60 mph (96.56 km/h) | 00h 41m |
| 70 mph (112.65 km/h) | 00h 35m |
| 80 mph (129 km/h) | 00h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $5.47 | $10.94 |
| Mid-grade | $4.25 | $6.17 | $12.33 |
| Premium | $4.65 | $6.75 | $13.50 |
| Diesel | $5.30 | $7.69 | $15.38 |
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 Missouri · Apr 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.