How far is Saint Charles, MO from Mehlville, MO?
The driving distance from Saint Charles, MO to Mehlville, MO is about 25.8 miles (41.5 km), with a travel time of about 00h 35m by car.
- The straight-line flight distance is about 20.9 miles (33.6 km).
- For a round trip, plan for roughly 01h 10m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
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.
This is an easy same-day return drive.
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 35m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Human settlement in St.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Isolated Showers And Thunderstorms then Scattered Showers And Thunderstorms
Scattered Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Saint Charles and Mehlville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Charles and Mehlville.
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1
Start on North Second Street
949 ft · 38 sec · North Second Street
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2
Turn right onto Jefferson Street
1093 ft · 45 sec · Jefferson Street
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3
Turn left onto South Fifth Street
1.1 mi · 3 min · South Fifth Street
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4
Take the ramp slight left toward I 70 East
1019 ft · 14 sec
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5
Merge slight left
2.7 mi · 3 min
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6
Take the exit slight right toward I 270: Chicago, Memphis
872 ft · 12 sec
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7
Keep slight right to continue on I 270 South: Memphis
2339 ft · 33 sec
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8
Continue on I 270 South: Memphis
723 ft · 10 sec
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9
Merge slight left
19 mi · 24 min
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10
Take the exit slight right toward I 55, US 61, US 67: Saint Louis, Memphis, Lemay Ferry Road
1911 ft · 27 sec
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11
Keep slight left to continue on I 55 North, US 61, US 67: Saint Louis
557 ft · 8 sec
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12
Continue on I 55 North, US 61, US 67: Saint Louis
797 ft · 11 sec
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13
Keep slight left to continue on US 61, US 67
1885 ft · 42 sec
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14
Turn left onto Lemay Ferry Road
1.2 km · 2 min · Lemay Ferry Road
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15
Arrive at your destination
0 m · 1 sec · Lemay Ferry Road
Car Route Details
A richer read on the saved driving route between Saint Charles and Mehlville.
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.
I 270 South
Merge slight left
19 mi · 00h 24m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
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.
Isolated Showers And Thunderstorms then Scattered Showers And Thunderstorms leaving Saint Charles and Scattered Showers And Thunderstorms near Mehlville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Saint Charles to Mehlville?
The road trip is about 25.8 miles (41.5 km) and usually takes 00h 35m 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?
Country Life Acres is a useful midpoint, sitting about 12.9 miles from Saint Charles and 12.9 miles from Mehlville.
How much longer is the road route than the straight-line distance?
The direct path is about 20.9 miles (33.6 km), while the road route adds roughly 4.9 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 CDT. If you want a more comfortable same-day return, try to leave by 7:20 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.43 one way or $6.86 round trip. Estimated CO2 is about 8.1 kg one way.
What should you check before leaving?
Before you leave, expect Isolated Showers And Thunderstorms then Scattered Showers And Thunderstorms around Saint Charles and Scattered Showers And Thunderstorms near Mehlville.
Stop Ideas Near Country Life Acres
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 Country Life Acres.
Kirkwood
Gateway Transportation Center
Alton
Washington
Flight Path Map
This map shows the direct air route between Saint Charles and Mehlville. Straight-line distance: 20.87 mi (33.58 km).
#1 Saint Charles
A city in St.
| Population | 71,761 |
| Coordinates | 38.7839400, -90.4812300 |
| Altitude | 147 |
| Country | United States |
#2 Mehlville
Census designated place
| Population | 28,380 |
| Coordinates | 38.5083900, -90.3228900 |
| Altitude | 184 |
| Country | United States |
End: Mehlville (-90.32289, 38.50839)
Estimated Travel Time
Distance: 41 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 51m |
| 40 mph (64.37 km/h) | 00h 38m |
| 50 mph (80.47 km/h) | 00h 30m |
| 60 mph (96.56 km/h) | 00h 25m |
| 70 mph (112.65 km/h) | 00h 22m |
| 80 mph (129 km/h) | 00h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $3.43 | $6.86 |
| Mid-grade | $4.25 | $3.87 | $7.74 |
| Premium | $4.65 | $4.24 | $8.47 |
| Diesel | $5.30 | $4.83 | $9.65 |
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 · May 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.