How far is Ballwin, MO from Saint Peters, MO?
The driving distance from Ballwin, MO to Saint Peters, MO is about 21.7 miles (34.9 km), with a travel time of about 00h 29m by car.
- The straight-line flight distance is about 14.9 miles (23.9 km).
- For a round trip, plan for roughly 00h 59m 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 29m.
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.
Township in Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Ballwin and Saint Peters.
Turn-by-Turn Driving Directions
Step-by-step road directions between Ballwin and Saint Peters.
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1
Start on the route
67 m · 21 sec
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2
Turn left
67 m · 18 sec
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3
At the end of the road, turn right onto Holloway Road
551 ft · 24 sec · Holloway Road
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4
At the end of the road, turn left onto Manchester Road
2 mi · 4 min · Manchester Road
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5
Take the exit slight left toward MO 141 North
1329 ft · 38 sec
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6
Merge slight left
8.2 mi · 12 min
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7
Take the exit slight right toward MO 364 West
1791 ft · 44 sec
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8
Merge slight left onto Page Avenue
3.7 mi · 5 min · Page Avenue
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9
Take the exit slight right toward MO 94 East: St. Charles
739 ft · 16 sec
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10
Keep slight left to continue on Muegge Road
1561 ft · 38 sec
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11
Continue on Muegge Road
3 mi · 6 min · Muegge Road
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12
Continue on Cave Springs Road
916 ft · 22 sec · Cave Springs Road
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13
Take the ramp slight left
1261 ft · 23 sec
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14
Merge slight left
3.2 mi · 4 min
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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 Ballwin and Saint Peters.
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.
MO 141 North
Merge slight left
8.18 mi · 00h 12m
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.
Sunny leaving Ballwin and Mostly Sunny near Saint Peters.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Ballwin to Saint Peters?
The road trip is about 21.7 miles (34.9 km) and usually takes 00h 29m 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?
Lake is a useful midpoint, sitting about 10.9 miles from Ballwin and 10.9 miles from Saint Peters.
How much longer is the road route than the straight-line distance?
The direct path is about 14.9 miles (23.9 km), while the road route adds roughly 6.8 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 7:30 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.90 one way or $5.81 round trip. Estimated CO2 is about 6.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Ballwin and Mostly Sunny near Saint Peters.
Stop Ideas Near Lake
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall Park
Jennings City Hall
Ferguson Finance Director
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Lake.
Kirkwood
Gateway Transportation Center
Alton
Washington
Flight Path Map
This map shows the direct air route between Ballwin and Saint Peters. Straight-line distance: 14.83 mi (23.87 km).
#1 Ballwin
City in Saint Louis County, Missouri, United States
| Population | 30,094 |
| Coordinates | 38.5950500, -90.5462300 |
| Altitude | 192 |
| 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: 35 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 43m |
| 40 mph (64.37 km/h) | 00h 32m |
| 50 mph (80.47 km/h) | 00h 26m |
| 60 mph (96.56 km/h) | 00h 21m |
| 70 mph (112.65 km/h) | 00h 18m |
| 80 mph (129 km/h) | 00h 16m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $2.90 | $5.81 |
| Mid-grade | $4.25 | $3.27 | $6.55 |
| Premium | $4.65 | $3.58 | $7.17 |
| Diesel | $5.30 | $4.08 | $8.17 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.