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Trip from Saint Peters, MO to Ballwin, MO

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Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards

Drive Time

37m

Distance

23.2 mi

37 km

Drive Score

8/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$4

one way

EV Charging

Fair

4 stations

Best Time to Leave

Save up to 9 min
4 AM
0h 34m ★
6 AM
0h 37m
8 AM
0h 43m
10 AM
0h 39m
12 PM
0h 39m
3 PM
0h 40m
5 PM
0h 43m
8 PM
0h 35m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Best Time Drive vs Fly
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city in Missouri

Saint Peters, MO

Wikimedia Commons

city in St. Louis County, Missouri, United States

Ballwin, MO

Wikimedia Commons

Trip Overview

If you are looking for a quick commute between Saint Peters and Ballwin, this 23.2-mile journey is a straightforward trip that typically takes about 37 minutes. Because the distance is so manageable, you can easily complete this drive in a single day without needing an overnight stay. You will primarily utilize a mix of the Maryland Heights Expressway, I-70, and MO-364 to navigate between these two Missouri locations. Expect to budget approximately $4 for fuel to cover the entire trip. Since the drive remains entirely within the Midwest, the transition between these two cities feels familiar and consistent. It is an ideal route for those prioritizing efficiency and speed over sightseeing.

Main Roads

Road Distance Duration
Maryland Heights Expressway 5.7 mi 8m
I 70 5.7 mi 7m
MO 364 3.1 mi 3m
Muegge Road 3 mi 5m
Clayton Road 1.6 mi 3m
Holloway Road 1.2 mi 3m
Baxter Road 0.4 mi 1m
South Woods Mill Road 0.2 mi <1m
Longest stretch: Maryland Heights Expressway — 5.7 mi, about 8m

Turn-by-Turn Driving Directions

Step-by-step road directions between Saint Peters, MO and Ballwin, MO.

1

Start on I 70

1.2 mi · 1 min · I 70
2

Take the exit

0.1 mi · 15 sec
Exit 220 Toward MO 79: Elsberry, Louisiana Use the straight / slight right lanes.
3

Keep slight left at fork

384 ft · 14 sec
Toward MO 79
4

Turn left onto MO 79

0.1 mi · 11 sec · MO 79
5

Take the ramp

0.2 mi · 18 sec
Toward I 70 East Use the right lane.
6

Merge onto I 70

4.5 mi · 5 min · I 70
Use the straight / slight right lanes.
7

Take the exit

0.2 mi · 21 sec
Exit 225 Toward Cave Springs Road, Truman Road Use the slight right lane.
8

Keep slight right at fork

200 ft · 4 sec
Use the left / right lanes.
9

Turn straight onto Cave Springs Road

0.1 mi · 18 sec · Cave Springs Road
10

Continue on Muegge Road

2.8 mi · 5 min · Muegge Road
Use the left lane.
11

Continue on Muegge Road

175 ft · 5 sec · Muegge Road
12

Continue on Muegge Road

0.1 mi · 12 sec · Muegge Road
13

Take the ramp

0.6 mi · 52 sec
14

Merge onto MO 364

3.1 mi · 3 min · MO 364
15

Take the exit

0.4 mi · 45 sec
Exit 17 Toward MO 141 Use the slight right lane.
16

Keep slight right at fork

418 ft · 10 sec
Toward MO 141 South Use the right lane.
17

Merge onto MO 141

5.7 mi · 8 min · Maryland Heights Expressway
Use the slight right lane.
18

Take the exit

0.2 mi · 25 sec
Toward Clayton Road, Woods Mill Road
19

Turn straight onto South Woods Mill Road

0.2 mi · 21 sec · South Woods Mill Road
20

Turn right onto Clayton Road

1.6 mi · 3 min · Clayton Road
21

Turn left onto Baxter Road

0.4 mi · 1 min · Baxter Road
Use the left lane.
22

Turn straight onto Holloway Road

1.2 mi · 3 min · Holloway Road
Use the straight / right lanes.
23

Turn right

220 ft · 18 sec
24

Turn right

219 ft · 16 sec
25

Arrive at destination

Heads-up: tricky spots

5 of 16

5 decision points cluster between mile 1.2 and 13.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

8
1.2 mi into trip | ~1m in

Take the exit toward MO 79: Elsberry, Louisiana

Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one

Use the straight / slight right lanes. Exit 220 Toward MO 79: Elsberry, Louisiana
8
6.3 mi into trip | ~8m in

Take the exit toward Cave Springs Road, Truman Road

Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one

Use the slight right lane. Exit 225 Toward Cave Springs Road, Truman Road
7
6.5 mi into trip | ~8m in

Keep slight right at fork

Highway fork - watch signs carefully. Lane positioning matters here

Use the left / right lanes.
7
13.4 mi into trip | ~19m in

Take the exit toward MO 141

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the slight right lane. Exit 17 Toward MO 141
7
13.7 mi into trip | ~20m in

Keep slight right at fork toward MO 141 South

Highway fork - watch signs carefully. Lane positioning matters here

Use the right lane. Toward MO 141 South

Fuel & Cost

Regular Gas

$3.63 one way

$7.25 round trip

$3.97/gal 25.4 MPG avg 8 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.36 $3.98 $7.96
premium $4.89 $4.46 $8.93
diesel $5.61 $5.12 $10.24

No toll roads detected on this route.

Drive Cost (one way)

Fuel

$4

Estimated CO2 emission: 8.1 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $2 in charging · 0 stops · 63% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 7 0 $2.44 $1.11
Efficient EV 5.8 0 $2.03 $0.93
EV Truck/SUV 9.3 0 $3.25 $1.48

Gas CO2

8 kg

EV CO2

3 kg (63% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.

Travel Intel

Current conditions at both ends of the drive.

Forecast as of Apr 12, 2026

Origin

Saint Peters, MO

Late night in Saint Peters on Tuesday

Local time

3:57 AM

CDT

Current temp

62°F

Partly Cloudy

S 8 mph 2% chance Live forecast

Special Weather Statement

Special Weather Statement issued April 12 at 12:21AM CDT by NWS Paducah KY

Flood Warning

Flood Warning issued April 11 at 9:46PM CDT until April 18 at 1:00PM CDT by NWS St Louis MO

Destination

Ballwin, MO

Late night in Ballwin on Tuesday

Local time

3:57 AM

CDT

Current temp

62°F

Mostly Cloudy

S 7 mph 2% chance Live forecast

Special Weather Statement

Special Weather Statement issued April 12 at 12:21AM CDT by NWS Paducah KY

Flood Warning

Flood Warning issued April 11 at 9:46PM CDT until April 18 at 1:00PM CDT by NWS St Louis MO

Time zone

Same local time

Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.

Temperature spread

Very similar conditions

Both ends of the route are sitting at about the same temperature right now.

Road read

37m on the road

The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

What kind of drive is this?

This trip is distinctly highway-focused, with 63% of your travel occurring on major thoroughfares. You will experience a blend of interstate driving and expressway navigation, keeping your pace steady throughout the 23.2-mile stretch. The longest uninterrupted portion of your drive occurs on the Maryland Heights Expressway, which spans 5.7 miles of the journey. Because of this configuration, the road personality is functional and fast-paced rather than winding or scenic. You should prepare for a utilitarian driving experience that prioritizes getting you from point A to point B as quickly as possible.

63% highway — fuel and pacing are the main things to plan.
25 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 5.7 mi on Maryland Heights Expressway.

How Hard Is This Drive?

10/10

This is a straightforward highway drive that stays mostly on Maryland Heights Expressway and I 70. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 1.2 miles in.

Driving Effort 10/10

Focused - lots of decisions in a short distance, but it is over quickly

Balances navigation complexity with total wheel time.

This is a short but busy drive. With 16 decision points packed into just 23.2 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 37m.

Where does it get tricky?

The main spots that need attention: at 1.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 6.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 6.5 miles: Highway fork - watch signs carefully. Lane positioning matters here.

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 37m. Total distance: 23.2 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

37m drive, comfortable solo distance.

EV Driver

0 DC fast chargers along the route. Coverage: unknown.

First-Time Driver

Mostly highway driving (63%). Some complex stretches to watch for.

Frequently Asked Questions

The longest stretch is about 5.7 miles on Maryland Heights Expressway. The full list of main roads is in the Roads section above.

It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Ballwin, MO before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.

Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.

The main spots that need attention: at 1.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 6.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 6.5 miles: Highway fork - watch signs carefully. Lane positioning matters here.

Yes — Gateway Arch National Park. See the National Parks section for detour distances and tips on detours.

Yes. A round trip is manageable in a single day if you plan a break at Ballwin, MO before heading back.

How this page is built

Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.

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