How far is Climax Springs, MO from O'Fallon, MO?
The driving distance from Climax Springs, MO to O'Fallon, MO is about 171.9 miles (276.7 km), with a travel time of about 03h 32m by car.
- The straight-line flight distance is about 136.2 miles (219.2 km).
- For a round trip, plan for roughly 07h 05m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CST.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 32m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town in Callaway County, Missouri, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Patchy Frost then Sunny
Driving Route Map
The map below follows the saved road route between Climax Springs and O'Fallon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Climax Springs and O'Fallon.
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1
Start on Coulter Drive
33 m · 9 sec · Coulter Drive
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2
Turn left onto Climax Avenue
2683 ft · 2 min · Climax Avenue
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3
Turn left onto MO 7
14.3 mi · 21 min · MO 7
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4
At the end of the road, turn left
4.9 mi · 7 min
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5
Turn right
2515 ft · 54 sec
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6
Keep slight left
1.8 mi · 3 min
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7
Turn right
7.3 mi · 11 min
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8
Continue straight
156 m · 13 sec
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9
At the end of the road, turn left onto Horseshoe Bend Parkway
963 ft · 25 sec · Horseshoe Bend Parkway
-
10
Turn right onto Bagnell Dam Boulevard
2.2 mi · 6 min · Bagnell Dam Boulevard
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11
Exit the roundabout onto Willmore Lane
952 ft · 19 sec · Willmore Lane
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12
Enter the roundabout and take exit 2 toward the route
70 m · 4 sec
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13
Exit the roundabout
684 ft · 19 sec
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14
Merge slight left
13.1 mi · 14 min
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15
Turn straight
56.1 mi · 1 hr 3 min
-
16
Take the exit slight right toward I 70 East, US 40 East: Saint Louis
1220 ft · 15 sec
-
17
Merge slight left onto Dwight D. Eisenhower Highway
69.2 mi · 1 hr 20 min · Dwight D. Eisenhower Highway
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18
Take the exit slight right toward MO K: O'Fallon
1765 ft · 43 sec
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19
Turn straight onto Drennen Parkway
46 m · 3 sec · Drennen Parkway
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20
Keep slight right to continue on Drennen Parkway
51 m · 6 sec · Drennen Parkway
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21
Turn slight left onto MO K: O'Fallon
19 m · 3 sec
-
22
Continue on South Main Street
3115 ft · 2 min · South Main Street
-
23
Turn right
8 m · 2 sec
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24
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Climax Springs and O'Fallon.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Dwight D. Eisenhower Highway
Merge slight left onto Dwight D. Eisenhower Highway
69.2 mi · 01h 20m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Patchy Frost then Sunny leaving Climax Springs and Sunny near O'Fallon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Climax Springs to O'Fallon?
The road trip is about 171.9 miles (276.7 km) and usually takes 03h 32m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
New Bloomfield is a useful midpoint, sitting about 85.9 miles from Climax Springs and 86.1 miles from O'Fallon.
How much longer is the road route than the straight-line distance?
The direct path is about 136.2 miles (219.2 km), while the road route adds roughly 35.7 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 6:00 AM to 8:00 AM CST. If you want a more comfortable same-day return, try to leave by 9:54 AM CST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.72 one way or $45.44 round trip. Estimated CO2 is about 53.9 kg one way.
What should you check before leaving?
Before you leave, expect Patchy Frost then Sunny around Climax Springs and Sunny near O'Fallon.
Stop Ideas Near New Bloomfield
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 New Bloomfield.
Jefferson City
Hermann
Washington
Sedalia
Flight Path Map
This map shows the direct air route between Climax Springs and O'Fallon. Straight-line distance: 136.2 mi (219.2 km).
#1 Climax Springs
Climax Springs is a place in Missouri, United States.
| Population | 0 |
| Coordinates | 38.1042000, -93.0501900 |
| Altitude | 296 |
| 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: O'Fallon (-90.69985, 38.81061)
Estimated Travel Time
Distance: 277 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 43m |
| 40 mph (64.37 km/h) | 04h 17m |
| 50 mph (80.47 km/h) | 03h 26m |
| 60 mph (96.56 km/h) | 02h 51m |
| 70 mph (112.65 km/h) | 02h 27m |
| 80 mph (129 km/h) | 02h 08m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.74 | $22.72 | $45.44 |
| Mid-grade | $4.13 | $25.05 | $50.10 |
| Premium | $4.50 | $27.29 | $54.58 |
| Diesel | $5.97 | $36.24 | $72.49 |
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 · Nov 07, 2026