How far is Chesterfield, MO from Mehlville, MO?
The driving distance from Chesterfield, MO to Mehlville, MO is about 21.3 miles (34.2 km), with a travel time of about 00h 28m by car.
- The straight-line flight distance is about 17.4 miles (28 km).
- For a round trip, plan for roughly 00h 57m 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 28m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Saint Louis County, Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Chesterfield and Mehlville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Chesterfield and Mehlville.
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1
Start on Santa Maria Drive
33 m · 8 sec · Santa Maria Drive
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2
Turn left onto Old Chesterfield Road
751 ft · 33 sec · Old Chesterfield Road
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3
Turn right onto Baxter Road
1507 ft · 37 sec · Baxter Road
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4
Take the ramp slight right toward I 64 East, US 40 East, US 61 South
924 ft · 23 sec
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5
Merge slight left onto Avenue of the Saints
6.8 mi · 9 min · Avenue of the Saints
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6
Take the exit slight right toward I 270: Chicago, Memphis
1829 ft · 39 sec
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7
Keep slight right to continue on I 270 South: Memphis
1691 ft · 31 sec
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8
Merge slight left
11.5 mi · 14 min
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9
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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10
Keep slight left to continue on I 55 North, US 61, US 67: Saint Louis
557 ft · 8 sec
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11
Continue on I 55 North, US 61, US 67: Saint Louis
797 ft · 11 sec
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12
Keep slight left to continue on US 61, US 67
1885 ft · 42 sec
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13
Turn left onto Lemay Ferry Road
1.2 km · 2 min · Lemay Ferry Road
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14
Arrive at your destination
0 m · 1 sec · Lemay Ferry Road
Car Route Details
A richer read on the saved driving route between Chesterfield 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
11.5 mi · 00h 14m
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.
Mostly Cloudy leaving Chesterfield and Slight Chance Rain Showers near Mehlville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Chesterfield to Mehlville?
The road trip is about 21.3 miles (34.2 km) and usually takes 00h 28m 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?
Des Peres is a useful midpoint, sitting about 10.6 miles from Chesterfield and 10.6 miles from Mehlville.
How much longer is the road route than the straight-line distance?
The direct path is about 17.4 miles (28 km), while the road route adds roughly 3.9 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 7:32 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.83 one way or $5.66 round trip. Estimated CO2 is about 6.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Chesterfield and Slight Chance Rain Showers near Mehlville.
Stop Ideas Near Des Peres
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 Des Peres.
Kirkwood
Gateway Transportation Center
Alton
Washington
Flight Path Map
This map shows the direct air route between Chesterfield and Mehlville. Straight-line distance: 17.4 mi (28 km).
#1 Chesterfield
A city in St.
| Population | 47,570 |
| Coordinates | 38.6631100, -90.5770700 |
| Altitude | 144 |
| 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: 34 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 42m |
| 40 mph (64.37 km/h) | 00h 31m |
| 50 mph (80.47 km/h) | 00h 25m |
| 60 mph (96.56 km/h) | 00h 21m |
| 70 mph (112.65 km/h) | 00h 18m |
| 80 mph (129 km/h) | 00h 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $2.83 | $5.66 |
| Mid-grade | $4.25 | $3.19 | $6.38 |
| Premium | $4.65 | $3.49 | $6.98 |
| Diesel | $5.30 | $3.98 | $7.96 |
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 29, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.