Origin
Saint Peters, MO
Afternoon in Saint Peters on Sunday
Local time
2:32 PM
CDT
Current temp
54°F
Unavailable
Live forecast
Trip from Saint Peters, MO to Carl Junction, MO
Drive Time
5h 35m
Distance
291.9 mi
470 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$44
one way
Saint Peters, MO
Aleksandra Żmuda
Carl Junction, MO
Kelly
Trip Overview
Traveling from Saint Peters to Carl Junction covers 291.9 miles across Missouri, a journey that typically takes 5 hours and 35 minutes of driving time. Because this route stays within the Midwest, you will experience consistent regional landscapes as you head southwest. With a total estimated fuel cost of $44, it is an affordable trip that can easily be completed in a single day. You will primarily navigate via I-44, MO-100, and MO-K, making this a straightforward highway-focused excursion. Whether you are heading out for business or visiting family, this drive is efficient enough that you won't need to worry about booking an overnight stay unless you prefer a slower pace.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
145.9 miles from Saint Peters, MO
A natural place for your longest stop of the day , about 2h 54m into the drive .
Drive Character
Expect a high-speed experience, as 90% of this journey is spent on major highways. You will settle into a long, steady rhythm during the 240.9-mile stretch on I-44, which serves as the backbone of your trip. While the route begins with local transitions on MO-100 and MO-K, the majority of your time is dedicated to interstate travel. The road maintains a practical, highway-focused profile that prioritizes speed and directness over winding scenic detours. You should be prepared for a consistent driving pace that allows you to cover significant ground quickly.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 34 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 44 is the longest continuous segment at about 240.9 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on I 44 and MO 100. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 3 miles in.
Route Complexity
8/10
Demanding - plan breaks and stay ahead of the key maneuvers
This is a demanding drive. With 24 significant decision points across 291.9 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 10.5 miles: Lane positioning matters here. Multiple destination signs - pick the right one; at 14.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Critical Maneuvers
5 of 24 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
8
3 mi into trip
|
~3m in
Take the exit toward MO K: O'Fallon, Main Street
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 218
Toward MO K: O'Fallon, Main Street
6
10.5 mi into trip
|
~16m in
Take the ramp toward I 64 East, US 40 East, US 61 South
Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Toward I 64 East, US 40 East, US 61 South
7
14.5 mi into trip
|
~21m in
Take the exit toward Chesterfield Airport Road
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 14
Toward Chesterfield Airport Road
6
277.9 mi into trip
|
~5h 16m in
|
I 49; US 71
Take the exit onto I 49; US 71 toward I 49 South, US 71 South, MO 249 North: Neosho, Fort Smith
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 11
Toward I 49 South, US 71 South, MO 249 North: N...
6
278.1 mi into trip
|
~5h 17m in
Keep slight right at fork toward MO 249 North
Highway fork - watch signs carefully
Toward MO 249 North
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 44 | 240.9 mi | 4h 19m |
| MO 100 | 13.3 mi | 18m |
| MO K | 6.5 mi | 11m |
| Governor Warren E Hearnes Memorial Highway | 5 mi | 5m |
| MO 109 | 4.7 mi | 7m |
| Avenue of the Saints | 3.7 mi | 4m |
| Demott Drive | 3.1 mi | 4m |
| I 70 | 3 mi | 3m |
Longest stretch:
I 44
— 240.9 mi, about 4h 19m
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Peters, MO and Carl Junction, MO.
1
Start on I 70
3.0 mi
·
3 min
·
I 70
Use the straight / slight right lanes.
2
Take the exit
390 ft
·
8 sec
Exit 218
Toward MO K: O'Fallon, Main Street
Use the slight right lane.
3
Turn straight onto East Terra Lane
0.9 mi
·
1 min
·
East Terra Lane
Use the straight lane.
4
Turn slight left
61 ft
·
1 sec
5
Continue on MO K
3.1 mi
·
5 min
·
MO K
Use the none lane.
6
Continue on MO K
3.4 mi
·
5 min
·
MO K
Use the none lane.
7
Take the ramp
0.3 mi
·
21 sec
Toward I 64 East, US 40 East, US 61 South
Use the slight right lane.
8
Merge onto I 64; US 40; US 61
3.7 mi
·
4 min
·
Avenue of the Saints
Use the none lane.
9
Take the exit
0.5 mi
·
57 sec
Exit 14
Toward Chesterfield Airport Road
Use the slight right lane.
10
Continue on Chesterfield Airport Road
361 ft
·
6 sec
·
Chesterfield Airport Road
11
Turn right
211 ft
·
5 sec
Toward Olive Street Road
12
Turn right onto Olive Street Road
0.9 mi
·
1 min
·
Olive Street Road
Use the none lane.
13
Continue on North Eatherton Road
2.4 mi
·
4 min
·
North Eatherton Road
14
Enter roundabout onto MO 109
70 ft
·
1 sec
·
MO 109
15
Continue on MO 109
4.3 mi
·
6 min
·
MO 109
16
Enter roundabout onto MO 109
94 ft
·
2 sec
·
MO 109
17
Continue on MO 109
0.4 mi
·
44 sec
·
MO 109
18
Enter roundabout
76 ft
·
1 sec
Toward MO 100 West: Gray Summit
19
Continue
0.2 mi
·
32 sec
Toward MO 100 West: Gray Summit
20
Merge onto MO 100
13 mi
·
18 min
·
MO 100
21
Take the exit
0.2 mi
·
14 sec
Toward I 44 West, US 50 West: St. Clair
22
Merge onto I 44; US 50
241 mi
·
4 hr 19 min
·
I 44; US 50
Use the straight lane.
23
Take the exit onto I 49; US 71
0.3 mi
·
24 sec
·
I 49; US 71
Exit 11
Toward I 49 South, US 71 South, MO 249 North: Neosho, Fort Smith
24
Keep slight right at fork
0.2 mi
·
21 sec
Toward MO 249 North
25
Merge onto MO 249
5.0 mi
·
5 min
·
Governor Warren E Hearnes Memorial Highway
26
Take the exit
0.6 mi
·
38 sec
Toward I 49 Business, MO 171 North: Webb City
27
Merge onto I 49 Business; MO 171
0.6 mi
·
46 sec
·
I 49 Business; MO 171
Toward I 49 Business, MO 171 North: Webb City
28
Enter roundabout onto I 49 Business; MO 171
235 ft
·
3 sec
·
East MacArthur Drive
29
Continue on I 49 Business; MO 171
0.9 mi
·
1 min
·
East MacArthur Drive
30
Continue on MO 171
2.0 mi
·
3 min
·
West Macarthur Drive
31
Enter roundabout onto MO 171
131 ft
·
2 sec
·
Demott Drive
32
Continue on MO 171
3.1 mi
·
4 min
·
Demott Drive
33
Turn left onto MO Z
1.3 mi
·
2 min
·
East Pennell Street
34
Arrive at destination
MO Z
Trip Plan
To keep your drive manageable, aim for at least one planned stop to break up the 5.5-hour duration. Since the longest uninterrupted segment spans over 240 miles, prioritize refueling before you fully commit to the I-44 corridor to avoid any mid-trip stress. Departing early in the morning is your best strategy to avoid potential traffic congestion and ensure you reach Carl Junction before the day ends. Given the flexibility of a one-day trip, feel free to adjust your departure time to suit your personal schedule. Keep an eye on your fuel gauge throughout the journey, as the $44 estimate may fluctuate based on current gas prices and your vehicle's specific efficiency.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 145.9 miles from Saint Peters, MO, or about 2h 54m into the drive.
The longest continuous stretch on this route runs about 240.9 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 80 miles or 1h 43m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 145.9 miles or 2h 54m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 35m
Traffic, exits, and arrival timing usually matter more near Carl Junction, MO than in the middle of the route.
Before You Leave
+
Open the route before leaving Saint Peters, MO so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Saint Peters, MO
This is one driving day of about 291.9 miles and 5h 35m.
Your first comfortable stop window is around 80 miles from Saint Peters, MO.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 44 for about 240.9 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 145.9 mi from Saint Peters, MO · 2h 54m into the drive
Mid-route town
Meal stop
146 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 80 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 145.9 miles from Saint Peters, MO, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before I 44 if your tank is already low. That segment runs about 240.9 miles.
Arriving in Carl Junction, MO
The final approach into Carl Junction, MO usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Carl Junction, MO.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$44.34 one way
$88.67 round trip
$3.86/gal
25.4 MPG avg
102 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.25 | $48.88 | $97.75 |
| premium | $4.80 | $55.10 | $110.21 |
| diesel | $5.64 | $64.85 | $129.70 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$44
Meals
$25–$50
Total
$69–$94
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 102.1 kg one way. Prices: EIA weekly data, 2026-04-06.
Driving Electric?
About $31 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 87.6 | 1 | $30.65 | $14.01 |
| Efficient EV | 73 | 0 | $25.54 | $11.68 |
| EV Truck/SUV | 116.8 | 1 | $40.87 | $18.68 |
Gas CO2
102 kg
EV CO2
34 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
Carl Junction, MO
Afternoon in Carl Junction on Sunday
Local time
2:32 PM
CDT
Current temp
57°F
Unavailable
Live forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
3 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
5h 35m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Saint Peters, MO to Carl Junction, MO covers 291.9 miles and takes about 5h 35m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 44, MO 100, MO K. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 145.9 miles from Saint Peters, MO. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $44.34 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This is a demanding drive. With 24 significant decision points across 291.9 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: at 3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 10.5 miles: Lane positioning matters here. Multiple destination signs - pick the right one; at 14.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
The route from Saint Peters, MO to Carl Junction, MO does not surface many named destination signs beyond the main corridor.
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