How far is Wentzville, MO from Washington County, MO?
The driving distance from Wentzville, MO to Washington County, MO is about 84 miles (135.2 km), with a travel time of about 02h 16m by car.
- The straight-line flight distance is about 58.7 miles (94.5 km).
- For a round trip, plan for roughly 04h 32m 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 02h 16m.
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.
City in Franklin County, Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Wentzville and Washington County.
Turn-by-Turn Driving Directions
Step-by-step road directions between Wentzville and Washington County.
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1
Start on East Allen Street
12 m · 8 sec · East Allen Street
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2
Turn left onto North Linn Avenue
706 ft · 26 sec · North Linn Avenue
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3
Turn right onto West 4th Street
135 m · 20 sec · West 4th Street
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4
Turn left onto South Church Street
1031 ft · 36 sec · South Church Street
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5
Enter the roundabout and take exit 2 toward South Church Street
30 m · 4 sec · South Church Street
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6
Exit the roundabout onto South Church Street
1 mi · 2 min · South Church Street
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7
Continue straight
1.4 mi · 2 min
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8
Continue straight
4.9 mi · 7 min
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9
Turn right
4.9 mi · 8 min
-
10
At the end of the road, turn left
3.1 mi · 4 min
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11
Continue straight
3.6 mi · 6 min
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12
Continue straight
1.1 km · 2 min
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13
At the end of the road, turn left
11.1 mi · 17 min
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14
At the end of the road, turn left
2293 ft · 50 sec
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15
Take the exit right
42 m · 5 sec
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16
Turn right
5.6 mi · 8 min
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17
Take the ramp right toward I 44 West: Rolla
1237 ft · 31 sec
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18
Merge slight left
14.1 mi · 15 min
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19
Take the exit slight right toward MO 185 South, MO AF: Sullivan, Potosi
983 ft · 32 sec
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20
Turn left
1089 ft · 24 sec
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21
Continue straight
28.8 mi · 51 min
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22
Turn right onto Pleasant Hill Road
1.7 mi · 7 min · Pleasant Hill Road
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23
Turn right
1 mi · 3 min
-
24
Turn left
2765 ft · 2 min
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25
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Wentzville and Washington County.
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.
MO 185 South
Continue straight
28.8 mi · 00h 51m
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.
Chance Showers And Thunderstorms leaving Wentzville and Showers And Thunderstorms near Washington County.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Wentzville to Washington County?
The road trip is about 84 miles (135.2 km) and usually takes 02h 16m 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?
Saint Clair is a useful midpoint, sitting about 41.9 miles from Wentzville and 42.1 miles from Washington County.
How much longer is the road route than the straight-line distance?
The direct path is about 58.7 miles (94.5 km), while the road route adds roughly 25.3 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 1:58 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.77 one way or $23.53 round trip. Estimated CO2 is about 26.3 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Wentzville and Showers And Thunderstorms near Washington County.
Stop Ideas Near Saint Clair
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 Saint Clair.
Washington
Hermann
Kirkwood
Gateway Transportation Center
Flight Path Map
This map shows the direct air route between Wentzville and Washington County. Straight-line distance: 58.73 mi (94.51 km).
#1 Wentzville
A city in St.
| Population | 43,109 |
| Coordinates | 38.8114400, -90.8529100 |
| Altitude | 190 |
| Country | United States |
#2 Washington County
County in Missouri, United States
| Population | 24,604 |
| Coordinates | 37.9616800, -90.8774200 |
| Altitude | 292 |
| Country | United States |
End: Washington County (-90.87742, 37.96168)
Estimated Travel Time
Distance: 135 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 47m |
| 40 mph (64.37 km/h) | 02h 06m |
| 50 mph (80.47 km/h) | 01h 40m |
| 60 mph (96.56 km/h) | 01h 24m |
| 70 mph (112.65 km/h) | 01h 12m |
| 80 mph (129 km/h) | 01h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.98 | $11.77 | $23.53 |
| Mid-grade | $4.34 | $12.85 | $25.70 |
| Premium | $4.71 | $13.93 | $27.87 |
| Diesel | $5.99 | $17.72 | $35.45 |
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 · Oct 15, 2026