How far is O'Fallon, MO from Richland, MO?
The driving distance from O'Fallon, MO to Richland, MO is about 145 miles (233.4 km), with a travel time of about 02h 56m by car.
- The straight-line flight distance is about 113.5 miles (182.6 km).
- For a round trip, plan for roughly 05h 53m 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 56m.
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.
Village in Crawford County, Missouri
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between O'Fallon and Richland.
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Fallon and Richland.
-
1
Start on the route
8 m · 7 sec
-
2
Turn left onto South Main Street
2865 ft · 1 min · South Main Street
-
3
Continue straight
3.1 mi · 6 min
-
4
Continue straight
3.4 mi · 5 min
-
5
Take the ramp slight right toward I 64 East, US 40 East, US 61 South
1523 ft · 22 sec
-
6
Merge slight left onto Avenue of the Saints
3.7 mi · 5 min · Avenue of the Saints
-
7
Take the exit slight right toward Chesterfield Airport Road
2700 ft · 58 sec
-
8
Continue on Chesterfield Airport Road
110 m · 7 sec · Chesterfield Airport Road
-
9
Turn right onto Olive Street Road
64 m · 5 sec
-
10
Turn right onto Olive Street Road
1.5 km · 2 min · Olive Street Road
-
11
Continue on North Eatherton Road
2.4 mi · 5 min · North Eatherton Road
-
12
Enter the roundabout and take exit 2 toward the route
21 m · 1 sec
-
13
Exit the roundabout
4.3 mi · 7 min
-
14
Enter the roundabout and take exit 2 toward the route
29 m · 2 sec
-
15
Exit the roundabout
2098 ft · 45 sec
-
16
Enter the roundabout and take exit 2 toward MO 100 West: Gray Summit
23 m · 2 sec
-
17
Exit the roundabout onto MO 100 West: Gray Summit
1202 ft · 33 sec
-
18
Merge slight left
13.3 mi · 19 min
-
19
Take the exit slight right toward I 44 West, US 50 West: St. Clair
1157 ft · 14 sec
-
20
Merge slight left
102.4 mi · 1 hr 50 min
-
21
Take the exit slight right toward MO P, MO 7: Laquey, Richard
1141 ft · 29 sec
-
22
Turn right
9 mi · 13 min
-
23
Arrive at your destination
0 m · 1 sec · South Pine Street
Car Route Details
A richer read on the saved driving route between O'Fallon and Richland.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 44 West
Merge slight left
102 mi · 01h 50m
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.
Mostly Sunny leaving O'Fallon and Mostly Sunny near Richland.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from O'Fallon to Richland?
The road trip is about 145 miles (233.4 km) and usually takes 02h 56m 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?
Leasburg is a useful midpoint, sitting about 72.5 miles from O'Fallon and 72.6 miles from Richland.
How much longer is the road route than the straight-line distance?
The direct path is about 113.5 miles (182.6 km), while the road route adds roughly 31.5 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 12:36 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $19.31 one way or $38.62 round trip. Estimated CO2 is about 45.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around O'Fallon and Mostly Sunny near Richland.
Stop Ideas Near Leasburg
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 Leasburg.
Washington
Hermann
Jefferson City
Kirkwood
Flight Path Map
This map shows the direct air route between O'Fallon and Richland. Straight-line distance: 113.47 mi (182.61 km).
#1 O'Fallon
The most populous city in St.
| Population | 89,769 |
| Coordinates | 38.8106100, -90.6998500 |
| Altitude | 165 |
| Country | United States |
#2 Richland
City in Missouri parts of witch are in Camden, Laclede, and Pulaski Counties
| Population | 1,800 |
| Coordinates | 37.8569800, -92.4043400 |
| Altitude | 346 |
| Country | United States |
End: Richland (-92.40434, 37.85698)
Estimated Travel Time
Distance: 233 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 49m |
| 40 mph (64.37 km/h) | 03h 37m |
| 50 mph (80.47 km/h) | 02h 54m |
| 60 mph (96.56 km/h) | 02h 25m |
| 70 mph (112.65 km/h) | 02h 04m |
| 80 mph (129 km/h) | 01h 48m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $19.31 | $38.62 |
| Mid-grade | $4.25 | $21.78 | $43.55 |
| Premium | $4.65 | $23.83 | $47.66 |
| Diesel | $5.30 | $27.16 | $54.31 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.