How far is Harrisonville, MO from Saint Peters, MO?
The driving distance from Harrisonville, MO to Saint Peters, MO is about 237 miles (381.4 km), with a travel time of about 03h 37m by car.
- The straight-line flight distance is about 200.9 miles (323.3 km).
- For a round trip, plan for roughly 07h 15m 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 37m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Cooper County, Missouri, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Harrisonville and Saint Peters.
Turn-by-Turn Driving Directions
Step-by-step road directions between Harrisonville and Saint Peters.
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1
Start on South Independence Street
23 m · 7 sec · South Independence Street
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2
Turn left onto East Mechanic Street
13.2 mi · 22 min · East Mechanic Street
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3
Turn right
2527 ft · 50 sec
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4
Enter the roundabout and take exit 2 toward the route
27 m · 2 sec
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5
Exit the roundabout
4.4 mi · 8 min
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6
At the end of the road, turn left
3.2 mi · 6 min
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7
Take the ramp right toward US 50 East: Warrensburg, Sedalia
1036 ft · 28 sec
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8
Merge slight left
1.9 mi · 2 min
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9
Take the exit slight left
106 m · 11 sec
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10
Turn left onto South Outer Belt Road
7.4 mi · 10 min · South Outer Belt Road
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11
Continue on South Broadway Street
2.7 mi · 6 min · South Broadway Street
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12
Take the ramp slight right toward I 70 East, US 40 East: Columbia
1426 ft · 35 sec
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13
Merge slight left onto Dwight D. Eisenhower Highway
41 mi · 44 min · Dwight D. Eisenhower Highway
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14
Continue on U.S. Submarine Veterans' Memorial Highway
32 mi · 34 min · U.S. Submarine Veterans' Memorial Highway
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15
Keep slight left to continue on U.S. Submarine Veterans' Memorial Highway
22.4 mi · 24 min · U.S. Submarine Veterans' Memorial Highway
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16
Continue on Dwight D. Eisenhower Highway
1.8 mi · 2 min · Dwight D. Eisenhower Highway
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17
Continue on Highway Patrol Sgt. Benjamin Booth Memorial Highway
1.6 mi · 2 min · Highway Patrol Sgt. Benjamin Booth Memorial Highway
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18
Continue on Sheriff Roger I. Wilson Memorial Highway
1.9 mi · 2 min · Sheriff Roger I. Wilson Memorial Highway
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19
Continue on Dwight D. Eisenhower Highway
92.8 mi · 1 hr 50 min · Dwight D. Eisenhower Highway
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20
Take the exit slight right toward Mid Rivers Mall Drive
889 ft · 19 sec
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21
Keep slight left to continue on Mid Rivers Mall Drive
63 m · 4 sec
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22
Turn straight onto Mid Rivers Mall Drive
61 m · 6 sec · Mid Rivers Mall Drive
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23
Take the ramp straight toward I 70 West: Wentzville
1419 ft · 20 sec
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24
Merge slight left
146 m · 7 sec
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25
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Harrisonville 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.
Dwight D. Eisenhower Highway
Continue on Dwight D. Eisenhower Highway
92.8 mi · 01h 50m
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.
Chance Showers And Thunderstorms leaving Harrisonville and Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms near Saint Peters.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Harrisonville to Saint Peters?
The road trip is about 237 miles (381.4 km) and usually takes 03h 37m 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?
Boonville is a useful midpoint, sitting about 113.8 miles from Harrisonville and 123.2 miles from Saint Peters.
How much longer is the road route than the straight-line distance?
The direct path is about 200.9 miles (323.3 km), while the road route adds roughly 36.1 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 9:44 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $31.53 one way or $63.05 round trip. Estimated CO2 is about 74.3 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Harrisonville and Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms near Saint Peters.
Stop Ideas Near Boonville
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 Boonville.
Sedalia
Jefferson City
Warrensburg
Hermann
Flight Path Map
This map shows the direct air route between Harrisonville and Saint Peters. Straight-line distance: 200.88 mi (323.29 km).
#1 Harrisonville
City in Cass County, Missouri, United States
| Population | 10,086 |
| Coordinates | 38.6533400, -94.3488400 |
| Altitude | 292 |
| 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: 381 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 53m |
| 40 mph (64.37 km/h) | 05h 55m |
| 50 mph (80.47 km/h) | 04h 44m |
| 60 mph (96.56 km/h) | 03h 56m |
| 70 mph (112.65 km/h) | 03h 23m |
| 80 mph (129 km/h) | 02h 57m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $31.53 | $63.05 |
| Mid-grade | $4.25 | $35.56 | $71.11 |
| Premium | $4.65 | $38.91 | $77.81 |
| Diesel | $5.30 | $44.34 | $88.68 |
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 · May 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.