How far is Saint Martins, MO from Saint Peters, MO?
The driving distance from Saint Martins, MO to Saint Peters, MO is about 113.5 miles (182.7 km), with a travel time of about 01h 45m by car.
- The straight-line flight distance is about 93.3 miles (150.2 km).
- For a round trip, plan for roughly 03h 30m 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 01h 45m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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 Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Saint Martins and Saint Peters.
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Martins and Saint Peters.
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1
Start on Business 50 West
1.1 km · 1 min · Business 50 West
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2
Turn right onto Lomo Drive
1593 ft · 34 sec · Lomo Drive
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3
Take the ramp left toward US 50 East: Jefferson City
1770 ft · 43 sec
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4
Merge slight left
7.6 mi · 9 min
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5
Take the exit slight right toward US 54, US 63 North: Fulton, Columbia, Lake of the Ozarks
868 ft · 21 sec
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6
Keep slight left
94 m · 15 sec
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7
Turn left
104 m · 8 sec
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8
Continue straight
914 ft · 22 sec
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9
Merge slight left
29.6 mi · 32 min
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10
Take the exit slight right toward I 70 East, US 40 East: Saint Louis
1220 ft · 15 sec
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11
Merge slight left onto Dwight D. Eisenhower Highway
73.7 mi · 1 hr 26 min · Dwight D. Eisenhower Highway
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12
Take the exit slight right toward Mid Rivers Mall Drive
889 ft · 19 sec
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13
Keep slight left to continue on Mid Rivers Mall Drive
63 m · 4 sec
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14
Turn straight onto Mid Rivers Mall Drive
61 m · 6 sec · Mid Rivers Mall Drive
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15
Take the ramp straight toward I 70 West: Wentzville
1419 ft · 20 sec
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16
Merge slight left
146 m · 7 sec
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17
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Saint Martins 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
Merge slight left onto Dwight D. Eisenhower Highway
73.7 mi · 01h 26m
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.
Slight Chance Showers And Thunderstorms leaving Saint Martins and Mostly Sunny then 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 Saint Martins to Saint Peters?
The road trip is about 113.5 miles (182.7 km) and usually takes 01h 45m 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?
Montgomery City is a useful midpoint, sitting about 56.7 miles from Saint Martins and 56.8 miles from Saint Peters.
How much longer is the road route than the straight-line distance?
The direct path is about 93.3 miles (150.2 km), while the road route adds roughly 20.2 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 3:00 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.08 one way or $30.17 round trip. Estimated CO2 is about 35.5 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms around Saint Martins and Mostly Sunny then Chance Showers And Thunderstorms near Saint Peters.
Stop Ideas Near Montgomery City
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 Montgomery City.
Hermann
Washington
Jefferson City
Kirkwood
Flight Path Map
This map shows the direct air route between Saint Martins and Saint Peters. Straight-line distance: 93.34 mi (150.21 km).
#1 Saint Martins
City in Cole County, MO
| Population | 1,204 |
| Coordinates | 38.5942000, -92.3371300 |
| Altitude | 237 |
| 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: 183 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 46m |
| 40 mph (64.37 km/h) | 02h 50m |
| 50 mph (80.47 km/h) | 02h 16m |
| 60 mph (96.56 km/h) | 01h 53m |
| 70 mph (112.65 km/h) | 01h 37m |
| 80 mph (129 km/h) | 01h 24m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $15.08 | $30.17 |
| Mid-grade | $4.25 | $17.01 | $34.02 |
| Premium | $4.65 | $18.62 | $37.23 |
| Diesel | $5.30 | $21.22 | $42.43 |
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 · Apr 17, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.