How far is Riverside, MO from Saint Peters, MO?
The driving distance from Riverside, MO to Saint Peters, MO is about 48.8 miles (78.5 km), with a travel time of about 00h 51m by car.
- The straight-line flight distance is about 37.9 miles (61 km).
- For a round trip, plan for roughly 01h 42m 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 00h 51m.
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 Saint Louis County, Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Isolated Showers And Thunderstorms then Scattered Showers And Thunderstorms
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Riverside and Saint Peters.
Turn-by-Turn Driving Directions
Step-by-step road directions between Riverside and Saint Peters.
-
1
Start on River
666 ft · 34 sec · River
-
2
Turn left onto Dow Industrial Drive
2904 ft · 2 min · Dow Industrial Drive
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3
Turn right onto Commercial Boulevard
3270 ft · 1 min · Commercial Boulevard
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4
Turn left
2237 ft · 45 sec
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5
Take the ramp slight right toward I 55 North: Saint Louis
1719 ft · 42 sec
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6
Merge slight left
13.9 mi · 15 min
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7
Continue on Rosa Parks Highway
1.3 mi · 2 min · Rosa Parks Highway
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8
Take the exit slight right toward I 270 West, I 255 East: Kansas City, Chicago
1279 ft · 27 sec
-
9
Keep slight left to continue on I 270 West: Kansas City
118 m · 8 sec
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10
Continue on I 270 West
1.2 km · 1 min
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11
Merge slight left
18.1 mi · 23 min
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12
Take the exit slight right toward I 70: Kansas City, Saint Louis, Saint Louis Lambert International Airport
1 mi · 1 min
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13
Keep slight left to continue on I 70 West: Kansas City
645 ft · 11 sec
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14
Continue on I 70 West: Kansas City
1 km · 57 sec
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15
Merge slight left
10.5 mi · 13 min
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16
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Riverside 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.
I 270 West
Merge slight left
18.1 mi · 00h 23m
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.
Isolated Showers And Thunderstorms then Scattered Showers And Thunderstorms leaving Riverside and 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 Riverside to Saint Peters?
The road trip is about 48.8 miles (78.5 km) and usually takes 00h 51m 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?
Sunset Hills is a useful midpoint, sitting about 24.4 miles from Riverside and 24.4 miles from Saint Peters.
How much longer is the road route than the straight-line distance?
The direct path is about 37.9 miles (61 km), while the road route adds roughly 10.9 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 4:48 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.49 one way or $12.97 round trip. Estimated CO2 is about 15.3 kg one way.
What should you check before leaving?
Before you leave, expect Isolated Showers And Thunderstorms then Scattered Showers And Thunderstorms around Riverside and Chance Showers And Thunderstorms near Saint Peters.
Stop Ideas Near Sunset Hills
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 Sunset Hills.
Kirkwood
Gateway Transportation Center
Alton
Washington
Flight Path Map
This map shows the direct air route between Riverside and Saint Peters. Straight-line distance: 37.9 mi (61 km).
#1 Riverside
City in Platte County, Missouri, United States
| Population | 3,528 |
| Coordinates | 38.2867200, -90.3801200 |
| Altitude | 129 |
| 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: 79 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 37m |
| 40 mph (64.37 km/h) | 01h 13m |
| 50 mph (80.47 km/h) | 00h 58m |
| 60 mph (96.56 km/h) | 00h 48m |
| 70 mph (112.65 km/h) | 00h 41m |
| 80 mph (129 km/h) | 00h 36m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $6.49 | $12.97 |
| Mid-grade | $4.25 | $7.32 | $14.63 |
| Premium | $4.65 | $8.00 | $16.01 |
| Diesel | $5.30 | $9.12 | $18.25 |
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.