How far is Wentzville, MO from Arnold, MO?
The driving distance from Wentzville, MO to Arnold, MO is about 45 miles (72.5 km), with a travel time of about 00h 57m by car.
- The straight-line flight distance is about 36.7 miles (59 km).
- For a round trip, plan for roughly 01h 55m 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 57m.
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.
Township in Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Wentzville and Arnold.
Turn-by-Turn Driving Directions
Step-by-step road directions between Wentzville and Arnold.
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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 right to continue on I 55 South: Memphis
2031 ft · 44 sec
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14
Merge slight left onto Rosa Parks Highway
1.5 mi · 2 min · Rosa Parks Highway
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15
Continue on Officer Thomas G. Smith, Jr. Memorial Highway
1.8 mi · 2 min · Officer Thomas G. Smith, Jr. Memorial Highway
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16
Continue on Police Officer Steven Jarvis Memorial Highway
1.5 km · 1 min · Police Officer Steven Jarvis Memorial Highway
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17
Take the exit slight right toward MO 141: Arnold
1143 ft · 28 sec
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18
Keep slight left to continue on MO 141 South: Arnold
134 m · 13 sec
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19
Merge slight right
893 ft · 14 sec
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20
Continue straight
879 ft · 21 sec
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21
Turn right onto Jeffco Boulevard
1.4 km · 2 min · Jeffco Boulevard
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22
Arrive at your destination
0 m · 1 sec · Jeffco Boulevard
Car Route Details
A richer read on the saved driving route between Wentzville and Arnold.
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.
Showers And Thunderstorms Likely leaving Wentzville and Chance Showers And Thunderstorms near Arnold.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Wentzville to Arnold?
The road trip is about 45 miles (72.5 km) and usually takes 00h 57m 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?
Lake is a useful midpoint, sitting about 22.5 miles from Wentzville and 22.6 miles from Arnold.
How much longer is the road route than the straight-line distance?
The direct path is about 36.7 miles (59 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 4:34 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.00 one way or $11.99 round trip. Estimated CO2 is about 14.1 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around Wentzville and Chance Showers And Thunderstorms near Arnold.
Stop Ideas Near Lake
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 Lake.
Kirkwood
Gateway Transportation Center
Alton
Washington
Flight Path Map
This map shows the direct air route between Wentzville and Arnold. Straight-line distance: 36.64 mi (58.97 km).
#1 Wentzville
A city in St.
| Population | 43,109 |
| Coordinates | 38.8114400, -90.8529100 |
| Altitude | 190 |
| Country | United States |
#2 Arnold
City in Missouri
| Population | 21,145 |
| Coordinates | 38.4328300, -90.3776200 |
| Altitude | 184 |
| Country | United States |
End: Arnold (-90.37762, 38.43283)
Estimated Travel Time
Distance: 73 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 30m |
| 40 mph (64.37 km/h) | 01h 07m |
| 50 mph (80.47 km/h) | 00h 54m |
| 60 mph (96.56 km/h) | 00h 45m |
| 70 mph (112.65 km/h) | 00h 38m |
| 80 mph (129 km/h) | 00h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $6.00 | $11.99 |
| Mid-grade | $4.25 | $6.76 | $13.52 |
| Premium | $4.65 | $7.40 | $14.80 |
| Diesel | $5.30 | $8.43 | $16.87 |
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 15, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.