How far is Wentzville, MO from Mehlville, MO?
The driving distance from Wentzville, MO to Mehlville, MO is about 40.2 miles (64.7 km), with a travel time of about 00h 51m by car.
- The straight-line flight distance is about 35.4 miles (57 km).
- For a round trip, plan for roughly 01h 42m 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 00h 51m.
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.
A city in St.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Isolated Showers And Thunderstorms then Chance Showers And Thunderstorms
Scattered Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Wentzville and Mehlville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Wentzville and Mehlville.
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1
Start on East Allen Street
12 m · 4 sec · East Allen Street
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2
Turn right onto North Linn Avenue
65 m · 11 sec · North Linn Avenue
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3
Turn right onto East Pearce Boulevard
2469 ft · 1 min · East Pearce Boulevard
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4
Turn slight right
106 m · 9 sec
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5
Turn slight right onto Luetkenhaus Boulevard
152 m · 14 sec · Luetkenhaus Boulevard
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6
Take the ramp straight toward US 61 South, I 70, US 40
50 m · 2 sec
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7
Keep slight left to continue on US 61 South
772 ft · 11 sec
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8
Merge slight left onto Avenue of the Saints
25.5 mi · 31 min · Avenue of the Saints
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9
Take the exit slight right toward I 270: Chicago, Memphis
1829 ft · 39 sec
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10
Keep slight right to continue on I 270 South: Memphis
1691 ft · 31 sec
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11
Merge slight left
11.5 mi · 14 min
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12
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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13
Keep slight left to continue on I 55 North, US 61, US 67: Saint Louis
557 ft · 8 sec
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14
Continue on I 55 North, US 61, US 67: Saint Louis
797 ft · 11 sec
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15
Keep slight left to continue on US 61, US 67
1885 ft · 42 sec
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16
Turn left onto Lemay Ferry Road
1.2 km · 2 min · Lemay Ferry Road
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17
Arrive at your destination
0 m · 1 sec · Lemay Ferry Road
Car Route Details
A richer read on the saved driving route between Wentzville 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.
Avenue of the Saints
Merge slight left onto Avenue of the Saints
25.5 mi · 00h 31m
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.
Isolated Showers And Thunderstorms then Chance Showers And Thunderstorms leaving Wentzville 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 Wentzville to Mehlville?
The road trip is about 40.2 miles (64.7 km) and usually takes 00h 51m 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?
Chesterfield is a useful midpoint, sitting about 20.1 miles from Wentzville and 20.1 miles from Mehlville.
How much longer is the road route than the straight-line distance?
The direct path is about 35.4 miles (57 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 CDT. If you want a more comfortable same-day return, try to leave by 4:48 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.35 one way or $10.71 round trip. Estimated CO2 is about 12.6 kg one way.
What should you check before leaving?
Before you leave, expect Isolated Showers And Thunderstorms then Chance Showers And Thunderstorms around Wentzville and Scattered Showers And Thunderstorms near Mehlville.
Stop Ideas Near Chesterfield
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall Park
Berkeley City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Chesterfield.
Kirkwood
Gateway Transportation Center
Washington
Alton
Flight Path Map
This map shows the direct air route between Wentzville and Mehlville. Straight-line distance: 35.44 mi (57.04 km).
#1 Wentzville
A city in St.
| Population | 43,109 |
| Coordinates | 38.8114400, -90.8529100 |
| Altitude | 190 |
| 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: 65 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 20m |
| 40 mph (64.37 km/h) | 01h 00m |
| 50 mph (80.47 km/h) | 00h 48m |
| 60 mph (96.56 km/h) | 00h 40m |
| 70 mph (112.65 km/h) | 00h 34m |
| 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 | $5.35 | $10.71 |
| Mid-grade | $4.25 | $6.04 | $12.08 |
| Premium | $4.65 | $6.61 | $13.22 |
| Diesel | $5.30 | $7.53 | $15.06 |
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.