Origin
Forsyth, MO
Late night in Forsyth on Monday
Local time
4:57 AM
CDT
Current temp
78°F
Unavailable
Live forecast
Trip from Forsyth, MO to Saint Peters, MO
Drive Time
4h 56m
Distance
250.6 mi
403 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$38
one way
EV Charging
Loading...
station data
Best Time to Leave
4 AM
4h 43m
★
6 AM
4h 56m
8 AM
5h 23m
10 AM
5h 6m
12 PM
5h 3m
3 PM
5h 7m
5 PM
5h 22m
8 PM
4h 48m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Forsyth, MO
Terence Koh
Saint Peters, MO
Aleksandra Żmuda
Trip Overview
The drive from Forsyth, MO to Saint Peters, MO covers 250.6 miles and takes about 4h 56m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on I 44, Manchester Road, American Legion Memorial Highway for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 170.3 miles on I 44. At current regular gas prices, budget about $38.06 one way before food or hotel costs.
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
125.3 miles from Forsyth, MO
A natural place for your longest stop of the day , about 2h 23m into the drive .
Drive Character
This is a 4h 56m highway drive covering 250.6 miles, with most of the trip on I 44 and Manchester Road. The longest continuous stretch is about 170.3 miles on I 44.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 31 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 170.3 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on I 44 and Manchester Road. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 216.2 miles in.
Route Complexity
9/10
High effort - long or complex enough to need steady focus all day
This is a demanding drive. With 19 significant decision points across 250.6 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 216.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 216.4 miles (MO 100 / Manchester Road): Lane positioning matters here; at 241.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 19 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
8
216.2 mi into trip
|
~4h 1m in
Take the exit toward I 44 Business, MO 100 East: Gray Summit
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 253
Toward I 44 Business, MO 100 East: Gray Summit
5
216.4 mi into trip
|
~4h 1m in
|
MO 100 / Manchester Road
Turn left onto MO 100 / Manchester Road
Lane positioning matters here
Use the straight lane.
8
241.6 mi into trip
|
~4h 40m in
Take the exit toward MO 94: Defiance, Saint Charles
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 10
Toward MO 94: Defiance, Saint Charles
8
241.8 mi into trip
|
~4h 40m in
Keep slight right at fork toward MO 94 East: Saint Charles
Highway fork - watch signs carefully. Lane positioning matters here
Use the right lane.
Toward MO 94 East: Saint Charles
8
245.3 mi into trip
|
~4h 45m in
Keep slight right at fork toward Mid Rivers Mall Drive, Pitman Hill Road
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward Mid Rivers Mall Drive, Pitman Hill Road
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 44 | 170.3 mi | 3h 3m |
| Manchester Road | 13.4 mi | 18m |
| American Legion Memorial Highway | 12.2 mi | 14m |
| US Highway 65 | 12 mi | 13m |
| Schoolcraft Freeway | 10.7 mi | 13m |
| US 160 | 10.2 mi | 15m |
| MO 109 | 4.9 mi | 7m |
| Mid Rivers Mall Drive | 4.7 mi | 9m |
Longest stretch:
I 44
— 170.3 mi, about 3h 3m
Turn-by-Turn Driving Directions
Step-by-step road directions between Forsyth, MO and Saint Peters, MO.
1
Start on Rockhill Drive
0.1 mi
·
25 sec
·
Rockhill Drive
2
Turn slight left onto US 160
10 mi
·
15 min
·
US 160
3
Take the ramp
0.2 mi
·
31 sec
4
Merge onto US 65
1.3 mi
·
1 min
·
American Legion Memorial Highway
5
Continue on US 65
12 mi
·
13 min
·
US Highway 65
6
Continue on US 65
11 mi
·
12 min
·
American Legion Memorial Highway
7
Continue on US 65
11 mi
·
13 min
·
Schoolcraft Freeway
Use the straight / slight right lanes.
8
Take the exit
0.6 mi
·
54 sec
Toward I 44 East: Saint Louis
9
Merge onto I 44
170 mi
·
3 hr 3 min
·
I 44
10
Take the exit
0.2 mi
·
27 sec
Exit 253
Toward I 44 Business, MO 100 East: Gray Summit
Use the slight right lane.
11
Turn left onto MO 100
13 mi
·
18 min
·
Manchester Road
Use the straight lane.
12
Take the exit
0.2 mi
·
30 sec
Toward MO 109
13
Enter roundabout onto MO 109
224 ft
·
4 sec
·
MO 109
14
Continue on MO 109
515 ft
·
10 sec
·
MO 109
15
Enter roundabout onto MO 109
98 ft
·
1 sec
·
MO 109
16
Continue on MO 109
0.4 mi
·
45 sec
·
MO 109
17
Enter roundabout onto MO 109
94 ft
·
2 sec
·
MO 109
18
Continue on MO 109
4.3 mi
·
6 min
·
MO 109
19
Enter roundabout onto South Eatherton Road
94 ft
·
1 sec
·
South Eatherton Road
20
Continue on South Eatherton Road
2.4 mi
·
4 min
·
South Eatherton Road
21
Continue on Olive Street Road
0.9 mi
·
1 min
·
Olive Street Road
22
Take the ramp onto Chesterfield Airport Road
0.7 mi
·
1 min
·
Chesterfield Airport Road
23
Merge onto I 64; US 40; US 61
2.7 mi
·
3 min
·
Avenue of the Saints
Use the straight lane.
24
Take the exit
0.2 mi
·
15 sec
Exit 10
Toward MO 94: Defiance, Saint Charles
Use the slight right lane.
25
Keep slight right at fork
313 ft
·
4 sec
Toward MO 94 East: Saint Charles
Use the right lane.
26
Merge onto MO 94
3.4 mi
·
4 min
·
MO 94
Use the right lane.
27
Keep slight right at fork
0.2 mi
·
22 sec
Toward Mid Rivers Mall Drive, Pitman Hill Road
Use the straight / slight right lanes.
28
Turn left onto Mid Rivers Mall Drive
4.7 mi
·
9 min
·
Mid Rivers Mall Drive
Use the left / straight lanes.
29
Take the ramp
0.3 mi
·
20 sec
Toward I 70 West: Wentzville
Use the slight left lane.
30
Merge onto I 70
479 ft
·
6 sec
·
I 70
31
Arrive at destination
I 70
Trip Plan
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 125.3 miles from Forsyth, MO, or about 2h 23m into the drive.
The longest continuous stretch on this route runs about 170.3 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 34m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 125.3 miles or 2h 23m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 49m
Traffic, exits, and arrival timing usually matter more near Saint Peters, MO than in the middle of the route.
Before You Leave
+
Open the route before leaving Forsyth, 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 Forsyth, MO
This is one driving day of about 250.6 miles and 4h 56m.
Your first comfortable stop window is around 80 miles from Forsyth, 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 170.3 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 125.3 mi from Forsyth, MO · 2h 23m into the drive
Mid-route town
Meal stop
125 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 125.3 miles from Forsyth, 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 170.3 miles.
Arriving in Saint Peters, MO
The final approach into Saint Peters, 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 Saint Peters, 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
$38.06 one way
$76.13 round trip
$3.86/gal
25.4 MPG avg
88 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.25 | $41.96 | $83.92 |
| premium | $4.80 | $47.31 | $94.62 |
| diesel | $5.64 | $55.67 | $111.35 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$38
Meals
$25–$50
Total
$63–$88
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 87.7 kg one way. Prices: EIA weekly data, 2026-04-06.
Driving Electric?
About $26 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 75.2 | 0 | $26.31 | $12.03 |
| Efficient EV | 62.7 | 0 | $21.93 | $10.02 |
| EV Truck/SUV | 100.2 | 1 | $35.08 | $16.04 |
Gas CO2
88 kg
EV CO2
29 kg (67% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
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
Saint Peters, MO
Late night in Saint Peters on Monday
Local time
4:57 AM
CDT
Current temp
54°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
24 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 56m 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 Forsyth, MO to Saint Peters, MO covers 250.6 miles and takes about 4h 56m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 44, Manchester Road, American Legion Memorial Highway. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 125.3 miles from Forsyth, MO. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $38.06 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 19 significant decision points across 250.6 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 216.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 216.4 miles (MO 100 / Manchester Road): Lane positioning matters here; at 241.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
The route from Forsyth, MO to Saint Peters, MO does not surface many named destination signs beyond the main corridor.
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