How far is Tarkio, MO from Saint Peters, MO?
The driving distance from Tarkio, MO to Saint Peters, MO is about 341.5 miles (549.6 km), with a travel time of about 05h 27m by car.
- The straight-line flight distance is about 277.1 miles (445.9 km).
- For a round trip, plan for roughly 10h 55m 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 05h 27m.
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.
Human settlement in Lafayette County, Missouri, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Tarkio and Saint Peters.
Turn-by-Turn Driving Directions
Step-by-step road directions between Tarkio and Saint Peters.
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1
Start on Main Street
48 m · 12 sec · Main Street
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2
Turn left onto South 3rd Street
998 ft · 46 sec · South 3rd Street
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3
Turn right onto Walnut Street
2617 ft · 52 sec · Walnut Street
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4
At the end of the road, turn left onto South 10th Street
1.4 mi · 2 min · South 10th Street
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5
Turn left
5.8 mi · 9 min
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6
Turn left onto East Main Street
11.8 mi · 17 min · East Main Street
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7
Take the ramp right toward I 29 South: Saint Joseph
2074 ft · 51 sec
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8
Merge slight right
75.1 mi · 1 hr 21 min
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9
Merge slight right
2.2 mi · 2 min
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10
Keep slight right to continue on I 435 East: Saint Louis
28 mi · 31 min
-
11
Keep slight right to continue on I 70, US 24 West, US 40: Saint Louis, Kansas City, Sports Complex
1500 ft · 23 sec
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12
Keep slight left to continue on I 70 East: Saint Louis
1.2 mi · 2 min
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13
Keep slight left to continue on I 70 East: Saint Louis
143 m · 12 sec
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14
Merge slight left onto George Brett Super Highway
2213 ft · 29 sec · George Brett Super Highway
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15
Continue on Truman/Eisenhower Presidential Highway
2.9 mi · 3 min · Truman/Eisenhower Presidential Highway
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16
Continue on Clifton J. Scott Memorial Highway
1.8 mi · 2 min · Clifton J. Scott Memorial Highway
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17
Continue on Truman/Eisenhower Presidential Highway
2.6 mi · 3 min · Truman/Eisenhower Presidential Highway
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18
Continue on Dwight D. Eisenhower Highway
52.5 mi · 57 min · Dwight D. Eisenhower Highway
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19
Continue on U.S. Submarine Veterans' Memorial Highway
32 mi · 34 min · U.S. Submarine Veterans' Memorial Highway
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20
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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21
Continue on Dwight D. Eisenhower Highway
1.8 mi · 2 min · Dwight D. Eisenhower Highway
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22
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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23
Continue on Sheriff Roger I. Wilson Memorial Highway
1.9 mi · 2 min · Sheriff Roger I. Wilson Memorial Highway
-
24
Continue on Dwight D. Eisenhower Highway
92.8 mi · 1 hr 50 min · Dwight D. Eisenhower Highway
-
25
Take the exit slight right toward Mid Rivers Mall Drive
889 ft · 19 sec
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26
Keep slight left to continue on Mid Rivers Mall Drive
63 m · 4 sec
-
27
Turn straight onto Mid Rivers Mall Drive
61 m · 6 sec · Mid Rivers Mall Drive
-
28
Take the ramp straight toward I 70 West: Wentzville
1419 ft · 20 sec
-
29
Merge slight left
146 m · 7 sec
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30
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Tarkio and Saint Peters.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
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.
Mostly Sunny leaving Tarkio 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 Tarkio to Saint Peters?
The road trip is about 341.5 miles (549.6 km) and usually takes 05h 27m 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?
Aullville is a useful midpoint, sitting about 170.1 miles from Tarkio and 171.4 miles from Saint Peters.
How much longer is the road route than the straight-line distance?
The direct path is about 277.1 miles (445.9 km), while the road route adds roughly 64.4 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 6:04 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $45.44 one way or $90.88 round trip. Estimated CO2 is about 107.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Tarkio and Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms near Saint Peters.
Stop Ideas Near Aullville
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 Aullville.
Warrensburg
Sedalia
Lee's Summit
Independence
Flight Path Map
This map shows the direct air route between Tarkio and Saint Peters. Straight-line distance: 277.04 mi (445.86 km).
#1 Tarkio
City in Missouri
| Population | 1,420 |
| Coordinates | 40.4402800, -95.3777600 |
| Altitude | 283 |
| 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: 550 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 22m |
| 40 mph (64.37 km/h) | 08h 32m |
| 50 mph (80.47 km/h) | 06h 49m |
| 60 mph (96.56 km/h) | 05h 41m |
| 70 mph (112.65 km/h) | 04h 52m |
| 80 mph (129 km/h) | 04h 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $45.44 | $90.88 |
| Mid-grade | $4.25 | $51.25 | $102.50 |
| Premium | $4.65 | $56.08 | $112.16 |
| Diesel | $5.30 | $63.91 | $127.83 |
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 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.