Traveling from Ash Grove to Saint Peters covers 228 miles and takes approximately 4 hours and 29 minutes of drive time. This journey stays entirely within the Midwest, connecting two Missouri communities through a mix of local roads. Because the total duration is under five hours, it is perfectly suited for a single-day trip, meaning you won't need to worry about overnight lodging. You should budget about $35 for fuel to complete the transit. Expect a practical, turn-heavy experience that favors local navigation over major interstates. It is an ideal route if you prefer a steady, manageable pace without the intensity of long-haul highway driving.
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
114 miles from Ash Grove, MO
A natural place for your longest stop of the day
, about 2h 8m into the drive
.
Main Roads
Road
Distance
Duration
Payne Stewart Highway
177.4 mi
3h 12m
Manchester Road
13.4 mi
18m
East Boone Street
10.2 mi
13m
US 160
5.5 mi
7m
MO 109
4.9 mi
7m
Mid Rivers Mall Drive
4.7 mi
9m
MO 94
3.4 mi
4m
Avenue of the Saints
2.7 mi
3m
Longest stretch:
Payne Stewart Highway
— 177.4 mi, about 3h 12m
Turn-by-Turn Driving Directions
Step-by-step road directions between Ash Grove, MO and Saint Peters, MO.
1
Start on West Main Street
100 ft·9 sec·West Main Street
2
Turn left onto MO F
0.2 mi·30 sec·Calhoun Avenue
3
Turn right onto US 160
10 mi·13 min·East Boone Street
4
Enter roundabout onto US 160
95 ft·3 sec·US 160
5
Continue on US 160
0.6 mi·47 sec·US 160
6
Enter roundabout onto US 160
128 ft·4 sec·US 160
7
Continue on US 160
1.3 mi·1 min·US 160
8
Enter roundabout onto US 160
110 ft·4 sec·US 160
9
Continue on US 160
3.6 mi·4 min·US 160
10
Take the ramp
0.3 mi·39 sec
11
Merge onto I 44
177 mi·3 hr 12 min·Payne Stewart Highway
Use the straight / slight right lanes.
12
Take the exit
0.2 mi·27 sec
Exit 253Toward I 44 Business, MO 100 East: Gray SummitUse the slight right lane.
13
Turn left onto MO 100
13 mi·18 min·Manchester Road
Use the straight lane.
14
Take the exit
0.2 mi·30 sec
Toward MO 109
15
Enter roundabout onto MO 109
224 ft·4 sec·MO 109
16
Continue on MO 109
515 ft·10 sec·MO 109
17
Enter roundabout onto MO 109
98 ft·1 sec·MO 109
18
Continue on MO 109
0.4 mi·45 sec·MO 109
19
Enter roundabout onto MO 109
94 ft·2 sec·MO 109
20
Continue on MO 109
4.3 mi·6 min·MO 109
21
Enter roundabout onto South Eatherton Road
94 ft·1 sec·South Eatherton Road
22
Continue on South Eatherton Road
2.4 mi·4 min·South Eatherton Road
23
Continue on Olive Street Road
0.9 mi·1 min·Olive Street Road
24
Take the ramp onto Chesterfield Airport Road
0.7 mi·1 min·Chesterfield Airport Road
25
Merge onto I 64; US 40; US 61
2.7 mi·3 min·Avenue of the Saints
Use the straight lane.
26
Take the exit
0.2 mi·15 sec
Exit 10Toward MO 94: Defiance, Saint CharlesUse the slight right lane.
27
Keep slight right at fork
313 ft·4 sec
Toward MO 94 East: Saint CharlesUse the right lane.
28
Merge onto MO 94
3.4 mi·4 min·MO 94
Use the right lane.
29
Keep slight right at fork
0.2 mi·22 sec
Toward Mid Rivers Mall Drive, Pitman Hill RoadUse the straight / slight right lanes.
30
Turn left onto Mid Rivers Mall Drive
4.7 mi·9 min·Mid Rivers Mall Drive
Use the left / straight lanes.
31
Take the ramp
0.3 mi·20 sec
Toward I 70 West: WentzvilleUse the slight left lane.
32
Merge onto I 70
479 ft·6 sec·I 70
33
Arrive at destination
I 70
Trip Plan
To keep your drive smooth, plan for at least one dedicated stop to break up the 4-hour and 29-minute duration. Since the route relies heavily on local roads rather than major expressways, leave early in the day to avoid potential congestion on smaller connectors. Keep your navigation system updated, as the turn-heavy nature of the drive makes it easy to miss a junction on backroads. Since your fuel budget is estimated at $35, filling up before you depart Ash Grove will help you avoid searching for stations along the more rural segments of the trip. The flexibility of this route allows you to adjust your departure time easily, but staying focused on the road signage is your best strategy for a stress-free arrival in Saint Peters.
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 114 miles from Ash Grove, MO, or about 2h 8m into the drive.
The longest continuous stretch on this route runs about 177.4 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 50 miles or 59m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 114 miles or 2h 8m 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 27m
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 Ash Grove, 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 Ash Grove, MO
This is one driving day of about 228 miles and 4h 29m.
Your first comfortable stop window is around 50 miles from Ash Grove, 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 Payne Stewart Highway for about 177.4 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 23
5 decision points cluster between mile 0 and 222.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0 mi into trip|~0m in|MO F / Calhoun Avenue
Turn left onto MO F / Calhoun Avenue
Navigation decision point
8
193.6 mi into trip|~3h 34m 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
8
219 mi into trip|~4h 13m 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
219.2 mi into trip|~4h 13m 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
222.7 mi into trip|~4h 18m 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
Fuel & Cost
Regular Gas
$35.65 one way
$71.29 round trip
$3.97/gal25.4 MPG avg80 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.36
$39.14
$78.27
premium
$4.89
$43.88
$87.75
diesel
$5.61
$50.34
$100.68
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$36
Meals
$25–$50
Total
$61–$86
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 79.8 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $24 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
68.4
0
$23.94
$10.94
Efficient EV
57
0
$19.95
$9.12
EV Truck/SUV
91.2
1
$31.92
$14.59
Gas CO2
80 kg
EV CO2
27 kg (66% 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.
Forecast as of Apr 15, 2026
Origin
Ash Grove, MO
Night
in Ash Grove on Saturday
Local time
11:22 PM
CDT
Current temp
54°F
Unavailable
Live forecast
Destination
Saint Peters, MO
Night
in Saint Peters on Saturday
Local time
11:22 PM
CDT
Current temp
57°F
Unavailable
Live forecast
74°F
Washington, MO
114 mi in
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
4h 29m 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.
National Parks Near This Route
Worth a detour if your schedule allows.
Wilson's Creek National Battlefield
National Battlefield
Wilson's Creek was the first major Civil War battle fought west of the Mississippi River, and where the first Union general was killed in action. The costly Southern victory on August 10, 1861, focuse...
11 mi from route
~27 min detour
Free
near mile 15.7
Gateway Arch National Park commemorates President Jefferson’s vision of a continental nation, the individuals and cultural groups who helped shape its history, St. Louis’ role in westward expansion, a...
26 mi from route
~65 min detour
$19
near mile 212.2
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a very different experience than a typical interstate slog, as this route features only 6% highway travel. You will spend the bulk of your time navigating local roads like Payne Stewart Highway, Manchester Road, and East Boone Street. The most significant portion of your journey is a 177.4-mile stretch along the Payne Stewart Highway, which dictates the character of the drive. Because the path is quite turn-heavy, you will need to remain alert and engaged with the road layout. This is a technical, local-focused route that requires you to trade high-speed cruising for a more hands-on driving style.
Only 6% highway — the rest is turn-by-turn surface driving.
33 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 177.4 mi on Payne Stewart Highway.
How Hard Is This Drive?
9/10
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near MO F / Calhoun Avenue.
Driving Effort9/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 23 significant decision points across 228 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: near the start (MO F / Calhoun Avenue): Navigation decision point; at 193.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 219 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Gently rolling terrain
1,497 ft443 ft
Total Climb
1,095 ft
Total Descent
1,700 ft
Highest Point
1,497 ft
~32.6 mi in
Elevation Range
1,054 ft
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 4h 29m. Total distance: 228 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 29m drive, comfortable solo distance.
Scenic Drive
Mostly surface roads route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 177.4 miles on Payne Stewart Highway. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Saint Peters, MO before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: near the start (MO F / Calhoun Avenue): Navigation decision point; at 193.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 219 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Wilson's Creek National Battlefield and Gateway Arch National Park. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.5 hours each way, an in-and-out day trip would put you behind the wheel for 9.0 hours — manageable with a long break at Saint Peters, MO, but most travelers stay overnight.
