How far is Palmyra, MO from Saint Peters, MO?
The driving distance from Palmyra, MO to Saint Peters, MO is about 98.9 miles (159.1 km), with a travel time of about 01h 38m by car.
- The straight-line flight distance is about 83.8 miles (134.8 km).
- For a round trip, plan for roughly 03h 16m 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 38m.
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.
Village in Pike County, Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Slight 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 Palmyra and Saint Peters.
Turn-by-Turn Driving Directions
Step-by-step road directions between Palmyra and Saint Peters.
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1
Start on South Main Street
9 m · 3 sec · South Main Street
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2
Turn right onto East Ross Street
1994 ft · 1 min · East Ross Street
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3
Merge slight left onto Avenue of the Saints
3.4 mi · 4 min · Avenue of the Saints
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4
Continue on Avenue of the Saints
3.9 mi · 5 min · Avenue of the Saints
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5
Turn right
1.7 mi · 2 min
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6
Turn right onto Veterans Road
3.2 mi · 6 min · Veterans Road
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7
At the end of the road, turn left onto County Road 422
85 m · 7 sec · County Road 422
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8
Continue on Paris Gravel Road
2539 ft · 1 min · Paris Gravel Road
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9
Take the ramp right
37 m · 3 sec
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10
Merge slight left onto Avenue of the Saints
73.7 mi · 1 hr 27 min · Avenue of the Saints
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11
Take the exit slight left toward I 70 East: Saint Louis
2705 ft · 51 sec
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12
Merge slight left onto Dwight D Eisenhower Highway
10.9 mi · 13 min · Dwight D Eisenhower Highway
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13
Take the exit slight right toward Mid Rivers Mall Drive
889 ft · 19 sec
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14
Keep slight left to continue on Mid Rivers Mall Drive
63 m · 4 sec
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15
Turn straight onto Mid Rivers Mall Drive
61 m · 6 sec · Mid Rivers Mall Drive
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16
Take the ramp straight toward I 70 West: Wentzville
1419 ft · 20 sec
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17
Merge slight left
146 m · 7 sec
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18
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Palmyra and Saint Peters.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Avenue of the Saints
Merge slight left onto Avenue of the Saints
73.7 mi · 01h 27m
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.
Mostly Sunny then Slight Chance Showers And Thunderstorms leaving Palmyra 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 Palmyra to Saint Peters?
The road trip is about 98.9 miles (159.1 km) and usually takes 01h 38m 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?
Eolia is a useful midpoint, sitting about 49.5 miles from Palmyra and 49.4 miles from Saint Peters.
How much longer is the road route than the straight-line distance?
The direct path is about 83.8 miles (134.8 km), while the road route adds roughly 15.1 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 3:14 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.16 one way or $26.32 round trip. Estimated CO2 is about 31 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Slight Chance Showers And Thunderstorms around Palmyra and Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms near Saint Peters.
Stop Ideas Near Eolia
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 Eolia.
Hermann
Washington
Alton
Quincy
Flight Path Map
This map shows the direct air route between Palmyra and Saint Peters. Straight-line distance: 83.75 mi (134.78 km).
#1 Palmyra
City in Marion County, Missouri, United States of America
| Population | 3,578 |
| Coordinates | 39.7942100, -91.5232100 |
| Altitude | 195 |
| 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: 159 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 17m |
| 40 mph (64.37 km/h) | 02h 28m |
| 50 mph (80.47 km/h) | 01h 58m |
| 60 mph (96.56 km/h) | 01h 38m |
| 70 mph (112.65 km/h) | 01h 24m |
| 80 mph (129 km/h) | 01h 14m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $13.16 | $26.32 |
| Mid-grade | $4.25 | $14.84 | $29.69 |
| Premium | $4.65 | $16.24 | $32.48 |
| Diesel | $5.30 | $18.51 | $37.02 |
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 12, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.