How far is Clarkton, MO from Saint Peters, MO?
The driving distance from Clarkton, MO to Saint Peters, MO is about 212.7 miles (342.3 km), with a travel time of about 03h 17m by car.
- The straight-line flight distance is about 166.2 miles (267.5 km).
- For a round trip, plan for roughly 06h 35m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
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 17m.
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.
Village in the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Clarkton and Saint Peters.
Turn-by-Turn Driving Directions
Step-by-step road directions between Clarkton and Saint Peters.
-
1
Start on East Clark Street
33 m · 7 sec · East Clark Street
-
2
Turn right onto North Main Street
1.1 km · 2 min · North Main Street
-
3
Continue straight
1437 ft · 41 sec
-
4
At the end of the road, turn right
25.1 mi · 37 min
-
5
Take the ramp slight right
16.1 mi · 19 min
-
6
Continue straight
7.1 mi · 8 min
-
7
Take the exit slight right toward I 55 North: Saint Louis
1793 ft · 44 sec
-
8
Merge slight left
27.4 mi · 29 min
-
9
Keep slight left
101.5 mi · 1 hr 49 min
-
10
Continue on Rosa Parks Highway
1.3 mi · 2 min · Rosa Parks Highway
-
11
Take the exit slight right toward I 270 West, I 255 East: Kansas City, Chicago
1279 ft · 27 sec
-
12
Keep slight left to continue on I 270 West: Kansas City
118 m · 8 sec
-
13
Continue on I 270 West
1.2 km · 1 min
-
14
Merge slight left
18.1 mi · 23 min
-
15
Take the exit slight right toward I 70: Kansas City, Saint Louis, Saint Louis Lambert International Airport
1 mi · 1 min
-
16
Keep slight left to continue on I 70 West: Kansas City
645 ft · 11 sec
-
17
Continue on I 70 West: Kansas City
1 km · 57 sec
-
18
Merge slight left
10.5 mi · 13 min
-
19
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Clarkton and Saint Peters.
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 55 North
Keep slight left
102 mi · 01h 49m
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.
Sunny leaving Clarkton and Mostly Sunny near Saint Peters.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Clarkton to Saint Peters?
The road trip is about 212.7 miles (342.3 km) and usually takes 03h 17m 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?
Longtown is a useful midpoint, sitting about 105.8 miles from Clarkton and 106.9 miles from Saint Peters.
How much longer is the road route than the straight-line distance?
The direct path is about 166.2 miles (267.5 km), while the road route adds roughly 46.5 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 10:24 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $28.32 one way or $56.64 round trip. Estimated CO2 is about 66.7 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Clarkton and Mostly Sunny near Saint Peters.
Stop Ideas Near Longtown
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 Longtown.
Carbondale station
Du Quoin
Marion, IL
Vienna, IL
Flight Path Map
This map shows the direct air route between Clarkton and Saint Peters. Straight-line distance: 166.24 mi (267.53 km).
#1 Clarkton
City in Dunklin County, Missouri, United States
| Population | 1,139 |
| Coordinates | 36.4517300, -89.9670400 |
| Altitude | 86 |
| Country | United States |
#2 Saint Peters
The most populous city in St.
| Population | 58,043 |
| Coordinates | 38.8003300, -90.6265100 |
| Altitude | 134 |
| Country | United States |
End: I 70 West (-90.626511, 38.800311)
Estimated Travel Time
Distance: 342 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 05m |
| 40 mph (64.37 km/h) | 05h 19m |
| 50 mph (80.47 km/h) | 04h 15m |
| 60 mph (96.56 km/h) | 03h 32m |
| 70 mph (112.65 km/h) | 03h 02m |
| 80 mph (129 km/h) | 02h 39m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $28.32 | $56.64 |
| Mid-grade | $4.25 | $31.94 | $63.88 |
| Premium | $4.65 | $34.95 | $69.90 |
| Diesel | $5.30 | $39.83 | $79.67 |
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.