How far is Oak Grove, MO from Saint Peters, MO?
The driving distance from Oak Grove, MO to Saint Peters, MO is about 194.9 miles (313.7 km), with a travel time of about 02h 52m by car.
- The straight-line flight distance is about 188.9 miles (304 km).
- For a round trip, plan for roughly 05h 45m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 02h 52m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
The most populous city in the state of Missouri.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Oak Grove and Saint Peters.
Turn-by-Turn Driving Directions
Step-by-step road directions between Oak Grove and Saint Peters.
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1
Start on South Broadway Street
1.1 km · 2 min · South Broadway Street
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2
Take the ramp slight right toward I 70 East, US 40 East: Columbia
1426 ft · 35 sec
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3
Merge slight left onto Dwight D. Eisenhower Highway
41 mi · 44 min · Dwight D. Eisenhower Highway
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4
Continue on U.S. Submarine Veterans' Memorial Highway
32 mi · 34 min · U.S. Submarine Veterans' Memorial Highway
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5
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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6
Continue on Dwight D. Eisenhower Highway
1.8 mi · 2 min · Dwight D. Eisenhower Highway
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7
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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8
Continue on Sheriff Roger I. Wilson Memorial Highway
1.9 mi · 2 min · Sheriff Roger I. Wilson Memorial Highway
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9
Continue on Dwight D. Eisenhower Highway
92.8 mi · 1 hr 50 min · Dwight D. Eisenhower Highway
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10
Take the exit slight right toward Mid Rivers Mall Drive
889 ft · 19 sec
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11
Keep slight left to continue on Mid Rivers Mall Drive
63 m · 4 sec
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12
Turn straight onto Mid Rivers Mall Drive
61 m · 6 sec · Mid Rivers Mall Drive
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13
Take the ramp straight toward I 70 West: Wentzville
1419 ft · 20 sec
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14
Merge slight left
146 m · 7 sec
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15
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Oak Grove 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 comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving Oak Grove and Partly Sunny near Saint Peters.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Oak Grove to Saint Peters?
The road trip is about 194.9 miles (313.7 km) and usually takes 02h 52m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Columbia is a useful midpoint, sitting about 97.4 miles from Oak Grove and 97.6 miles from Saint Peters.
How much longer is the road route than the straight-line distance?
The direct path is about 188.9 miles (304 km), while the road route adds roughly 6 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 12:44 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $25.94 one way or $51.89 round trip. Estimated CO2 is about 61.1 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Oak Grove and Partly Sunny near Saint Peters.
Stop Ideas Near Columbia
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 Columbia.
Jefferson City
Sedalia
Hermann
Flight Path Map
This map shows the direct air route between Oak Grove and Saint Peters. Straight-line distance: 188.87 mi (303.95 km).
#1 Oak Grove
City in Jackson County, Missouri, United States
| Population | 8,437 |
| Coordinates | 39.0050100, -94.1293900 |
| Altitude | 268 |
| 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: 314 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 29m |
| 40 mph (64.37 km/h) | 04h 52m |
| 50 mph (80.47 km/h) | 03h 53m |
| 60 mph (96.56 km/h) | 03h 14m |
| 70 mph (112.65 km/h) | 02h 47m |
| 80 mph (129 km/h) | 02h 25m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $25.94 | $51.89 |
| Mid-grade | $4.25 | $29.26 | $58.52 |
| Premium | $4.65 | $32.02 | $64.04 |
| Diesel | $5.30 | $36.49 | $72.98 |
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 25, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.