How far is Lemay, MO from Chesterfield, MO?
The driving distance from Lemay, MO to Chesterfield, MO is about 25.1 miles (40.4 km), with a travel time of about 00h 30m by car.
- The straight-line flight distance is about 18.4 miles (29.6 km).
- For a round trip, plan for roughly 01h 00m 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 30m.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Lemay and Chesterfield.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lemay and Chesterfield.
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1
Start on Rembold Avenue
61 m · 14 sec · Rembold Avenue
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2
Turn left onto Placid Avenue
106 m · 22 sec · Placid Avenue
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3
Turn sharp right onto Gentry Avenue
2404 ft · 1 min · Gentry Avenue
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4
At the end of the road, turn left onto Telegraph Road
2.4 mi · 5 min · Telegraph Road
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5
Take the ramp slight right toward I 255 West, US 50 West: Memphis
1854 ft · 27 sec
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6
Merge slight left
1.9 mi · 2 min
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7
Continue straight
12 mi · 15 min
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8
Take the exit slight right toward I 64, US 40, US 61: Wentzville, Saint Louis
705 ft · 17 sec
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9
Keep slight left to continue on I 64 West, US 40 West, US 61 North: Wentzville
2009 ft · 49 sec
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10
Continue on I 64 West, US 40 West, US 61 North: Wentzville
674 ft · 10 sec
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11
Merge slight left onto Avenue of the Saints
5.9 mi · 7 min · Avenue of the Saints
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12
Take the exit slight right toward Chesterfield Parkway West
116 m · 8 sec
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13
Turn straight onto North Outer 40
2036 ft · 56 sec · North Outer 40
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14
Turn left onto Chesterfield Parkway West
607 ft · 27 sec · Chesterfield Parkway West
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15
Turn right
1674 ft · 33 sec
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16
Turn straight onto Wild Horse Creek Road
48 m · 4 sec · Wild Horse Creek Road
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17
Turn right onto Old Chesterfield Road
1576 ft · 1 min · Old Chesterfield Road
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18
Turn left onto Santa Maria Drive
33 m · 5 sec · Santa Maria Drive
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19
Arrive at your destination
0 m · 1 sec · Santa Maria Drive
Car Route Details
A richer read on the saved driving route between Lemay and Chesterfield.
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 255 West
Continue straight
12 mi · 00h 15m
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.
Sunny leaving Lemay and Sunny near Chesterfield.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lemay to Chesterfield?
The road trip is about 25.1 miles (40.4 km) and usually takes 00h 30m 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?
Kirkwood is a useful midpoint, sitting about 12.5 miles from Lemay and 12.6 miles from Chesterfield.
How much longer is the road route than the straight-line distance?
The direct path is about 18.4 miles (29.6 km), while the road route adds roughly 6.7 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 7:30 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.32 one way or $6.64 round trip. Estimated CO2 is about 7.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Lemay and Sunny near Chesterfield.
Stop Ideas Near Kirkwood
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 Kirkwood.
Kirkwood
Gateway Transportation Center
Alton
Washington
Flight Path Map
This map shows the direct air route between Lemay and Chesterfield. Straight-line distance: 18.41 mi (29.63 km).
#1 Lemay
Census designated place
| Population | 16,645 |
| Coordinates | 38.5333900, -90.2792800 |
| Altitude | 144 |
| Country | United States |
#2 Chesterfield
A city in St.
| Population | 47,570 |
| Coordinates | 38.6631100, -90.5770700 |
| Altitude | 144 |
| Country | United States |
End: Santa Maria Drive (-90.576914, 38.663102)
Estimated Travel Time
Distance: 40 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 50m |
| 40 mph (64.37 km/h) | 00h 37m |
| 50 mph (80.47 km/h) | 00h 30m |
| 60 mph (96.56 km/h) | 00h 25m |
| 70 mph (112.65 km/h) | 00h 21m |
| 80 mph (129 km/h) | 00h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $3.32 | $6.64 |
| Mid-grade | $4.25 | $3.74 | $7.49 |
| Premium | $4.65 | $4.10 | $8.19 |
| Diesel | $5.30 | $4.67 | $9.34 |
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 · Jun 04, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.