How far is Shrewsbury, MO from O'Fallon, MO?
The driving distance from Shrewsbury, MO to O'Fallon, MO is about 36 miles (58 km), with a travel time of about 00h 38m by car.
- The straight-line flight distance is about 24.8 miles (39.9 km).
- For a round trip, plan for roughly 01h 16m 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 38m.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Partly Cloudy
Driving Route Map
The map below follows the saved road route between Shrewsbury and O'Fallon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Shrewsbury and O'Fallon.
-
1
Start on Police Officer Robert Stanze Memorial Highway
668 ft · 10 sec · Police Officer Robert Stanze Memorial Highway
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2
Take the exit slight right toward Laclede Station Road, Murdoch Avenue
777 ft · 25 sec
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3
Turn left onto Laclede Station Road
1.6 km · 2 min · Laclede Station Road
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4
Continue on South Hanley Road
1.6 mi · 3 min · South Hanley Road
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5
Turn slight right onto Eager Road
3052 ft · 1 min · Eager Road
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6
Take the ramp slight right toward I 170 North
2323 ft · 34 sec
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7
Merge slight right onto Inner Belt Expressway
7.1 mi · 9 min · Inner Belt Expressway
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8
Take the exit slight left toward I 70 West: Kansas City
2159 ft · 37 sec
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9
Merge slight right
19.8 mi · 25 min
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10
Take the exit slight right toward MO K: O'Fallon, Main Street
119 m · 8 sec
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11
Turn straight onto East Terra Lane
1.4 km · 2 min · East Terra Lane
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12
Turn right onto South Main Street
2830 ft · 1 min · South Main Street
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13
Turn right
8 m · 2 sec
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14
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Shrewsbury and O'Fallon.
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 70 West
Merge slight right
19.8 mi · 00h 25m
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.
Chance Rain Showers leaving Shrewsbury and Partly Cloudy near O'Fallon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Shrewsbury to O'Fallon?
The road trip is about 36 miles (58 km) and usually takes 00h 38m 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?
Bridgeton is a useful midpoint, sitting about 16.3 miles from Shrewsbury and 19.8 miles from O'Fallon.
How much longer is the road route than the straight-line distance?
The direct path is about 24.8 miles (39.9 km), while the road route adds roughly 11.2 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 7:14 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.79 one way or $9.58 round trip. Estimated CO2 is about 11.3 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Shrewsbury and Partly Cloudy near O'Fallon.
Stop Ideas Near Bridgeton
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 Bridgeton.
Kirkwood
Gateway Transportation Center
Alton
Washington
Flight Path Map
This map shows the direct air route between Shrewsbury and O'Fallon. Straight-line distance: 24.8 mi (39.91 km).
#1 Shrewsbury
Suburb of St.
| Population | 6,063 |
| Coordinates | 38.5903300, -90.3367800 |
| Altitude | 167 |
| Country | United States |
#2 O'Fallon
The most populous city in St.
| Population | 89,769 |
| Coordinates | 38.8106100, -90.6998500 |
| Altitude | 165 |
| Country | United States |
End: (-90.699849, 38.810674)
Estimated Travel Time
Distance: 58 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 12m |
| 40 mph (64.37 km/h) | 00h 54m |
| 50 mph (80.47 km/h) | 00h 43m |
| 60 mph (96.56 km/h) | 00h 36m |
| 70 mph (112.65 km/h) | 00h 30m |
| 80 mph (129 km/h) | 00h 26m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $4.79 | $9.58 |
| Mid-grade | $4.25 | $5.40 | $10.80 |
| Premium | $4.65 | $5.91 | $11.82 |
| Diesel | $5.30 | $6.74 | $13.47 |
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.