How far is St. Louis, MO from Riverside, MO?
The driving distance from St. Louis, MO to Riverside, MO is about 30.3 miles (48.8 km), with a travel time of about 00h 40m by car.
- The straight-line flight distance is about 25.5 miles (41.1 km).
- For a round trip, plan for roughly 01h 21m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 40m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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
Route Weather Snapshot
Check the forecast at both ends before you head out.
Scattered Rain Showers
Chance Rain Showers then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between St. Louis and Riverside.
Turn-by-Turn Driving Directions
Step-by-step road directions between St. Louis and Riverside.
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1
Start on Market Street
26 m · 4 sec · Market Street
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2
Turn left onto South Tucker Boulevard
1.3 mi · 4 min · South Tucker Boulevard
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3
Turn straight onto Gravois Avenue
1619 ft · 46 sec · Gravois Avenue
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4
Take the ramp left toward I 55 South: Memphis
626 ft · 15 sec
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5
Merge slight left
26.4 mi · 31 min
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6
Take the exit slight right toward MO Z: Pevely
1544 ft · 41 sec
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7
Turn left
2864 ft · 1 min
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8
Turn right onto Commercial Boulevard
3270 ft · 1 min · Commercial Boulevard
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9
Turn left onto Dow Industrial Drive
2904 ft · 2 min · Dow Industrial Drive
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10
At the end of the road, turn right onto Riverside Drive
666 ft · 29 sec · Riverside Drive
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11
Arrive at your destination
0 m · 1 sec · River
Car Route Details
A richer read on the saved driving route between St. Louis and Riverside.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
I 55 South
Merge slight left
26.4 mi · 00h 31m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Scattered Rain Showers leaving St. Louis and Chance Rain Showers then Chance Showers And Thunderstorms near Riverside.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from St. Louis to Riverside?
The road trip is about 30.3 miles (48.8 km) and usually takes 00h 40m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Arnold is a useful midpoint, sitting about 15.2 miles from St. Louis and 15.2 miles from Riverside.
How much longer is the road route than the straight-line distance?
The direct path is about 25.5 miles (41.1 km), while the road route adds roughly 4.8 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 7:00 AM to 7:00 PM CDT. If you want a more comfortable same-day return, try to leave by 7:08 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.03 one way or $8.07 round trip. Estimated CO2 is about 9.5 kg one way.
What should you check before leaving?
Before you leave, expect Scattered Rain Showers around St. Louis and Chance Rain Showers then Chance Showers And Thunderstorms near Riverside.
Stop Ideas Near Arnold
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Marco's City Hall Cafe
City Hall Lot
St. Louis City Hall
St Louis License Office
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Arnold.
Kirkwood
Gateway Transportation Center
Alton
Washington
Flight Path Map
This map shows the direct air route between St. Louis and Riverside. Straight-line distance: 25.51 mi (41.06 km).
#1 St. Louis
The second most populous city in Missouri and the center of the St.
| Population | 315,685 |
| Coordinates | 38.6272700, -90.1978900 |
| Altitude | 142 |
| Country | United States |
#2 Riverside
City in Platte County, Missouri, United States
| Population | 3,528 |
| Coordinates | 38.2867200, -90.3801200 |
| Altitude | 129 |
| Country | United States |
End: Riverside (-90.38012, 38.28672)
Estimated Travel Time
Distance: 49 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 00m |
| 40 mph (64.37 km/h) | 00h 45m |
| 50 mph (80.47 km/h) | 00h 36m |
| 60 mph (96.56 km/h) | 00h 30m |
| 70 mph (112.65 km/h) | 00h 25m |
| 80 mph (129 km/h) | 00h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $4.03 | $8.07 |
| Mid-grade | $4.25 | $4.55 | $9.10 |
| Premium | $4.65 | $4.98 | $9.96 |
| Diesel | $5.30 | $5.68 | $11.35 |
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 16, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.