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Trip from Saint Charles, MO to Arnold, MO

Compiled by the Trip.ovh editorial team · Last recalculated Apr 17, 2026 · Methodology

Drive Time

41m

Distance

30.7 mi

49 km

Drive Score

6/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$5

one way

EV Charging

Unknown

Best Time to Leave

Save up to 11 min
4 AM
0h 38m ★
6 AM
0h 42m
8 AM
0h 49m
10 AM
0h 44m
12 PM
0h 44m
3 PM
0h 45m
5 PM
0h 48m
8 PM
0h 40m

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

city in and county seat of St. Charles County, Missouri, United States

Saint Charles, MO

Wikimedia Commons

city in Jefferson County, Missouri, United States

Arnold, MO

Wikimedia Commons

Trip Overview

The drive from Saint Charles, MO to Arnold, MO covers 30.7 miles and takes about 41m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.

The route leans on Jefferson Street, South Fifth Street, I 70 East for much of the mileage, and the overall profile is turn-heavy local drive. At current regular gas prices, budget about $4.80 one way before food or hotel costs.

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 41m. Total distance: 30.7 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

41m drive, comfortable solo distance.

EV Driver

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

First-Time Driver

Mostly highway driving (0%). Straightforward navigation.

Scenic Drive

Turn-heavy local drive route profile.

Drive Character

Expect a 41m drive with frequent turns across 30.7 miles of local and secondary roads.

This route has more turning and local-road decision points than a simple highway run.
There are about 20 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Jefferson Street is one of the defining roads on this drive.

How Hard Is This Drive?

Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. Navigation is very simple - set it and forget it for most of the drive.

Driving Effort 1/10

Very easy - short and simple to drive

Balances navigation complexity with total wheel time.

The drive from Saint Charles, MO to Arnold, MO is easy. At 41m with 0% highway, most drivers will find it relaxed and low-stress.

Where does it get tricky?

This route does not have any notably tricky sections. Most of the drive from Saint Charles, MO to Arnold, MO is straightforward, with well-signed roads and simple exits.

Main Roads

Road Distance Duration
Jefferson Street
South Fifth Street
I 70 East
I 270
I 270 South
I 55
I 55 South
Rosa Parks Highway

Some road-level metrics are being recalculated.

Longest stretch: Jefferson Street — detailed segment metrics are refreshing.

Turn-by-Turn Driving Directions

Step-by-step road directions between Saint Charles, MO and Arnold, MO.

1

Start on North Second Street

0.2 mi · 38 sec · North Second Street
2

Turn right onto Jefferson Street

0.2 mi · 45 sec · Jefferson Street
3

Turn left onto South Fifth Street

1.1 mi · 2 min · South Fifth Street
4

Take the ramp slight left toward I 70 East

0.2 mi · 14 sec · I 70 East
5

Merge slight left

2.7 mi · 3 min
6

Take the exit slight right toward I 270: Chicago, Memphis

0.2 mi · 12 sec · I 270: Chicago, Memphis
7

Keep slight right to continue on I 270 South: Memphis

0.4 mi · 33 sec · I 270 South: Memphis
8

Continue on I 270 South: Memphis

0.1 mi · 10 sec · I 270 South: Memphis
9

Merge slight left

19 mi · 23 min
10

Take the exit slight right toward I 55, US 61, US 67: Saint Louis, Memphis, Lemay Ferry Road

0.4 mi · 27 sec · I 55, US 61, US 67: Saint Louis, Memphis, Lemay Ferry Road
11

Keep slight right to continue on I 55 South: Memphis

0.4 mi · 44 sec · I 55 South: Memphis
12

Merge slight left onto Rosa Parks Highway

1.5 mi · 1 min · Rosa Parks Highway
13

Continue on Officer Thomas G. Smith, Jr. Memorial Highway

1.8 mi · 2 min · Officer Thomas G. Smith, Jr. Memorial Highway
14

Continue on Police Officer Steven Jarvis Memorial Highway

0.9 mi · 1 min · Police Officer Steven Jarvis Memorial Highway
15

Take the exit slight right toward MO 141: Arnold

0.2 mi · 28 sec · MO 141: Arnold
16

Keep slight left to continue on MO 141 South: Arnold

440 ft · 13 sec · MO 141 South: Arnold
17

Merge slight right

0.2 mi · 14 sec
18

Continue straight

0.2 mi · 21 sec
19

Turn right onto Jeffco Boulevard

0.9 mi · 1 min · Jeffco Boulevard
20

Arrive at your destination

Fuel & Cost

Regular Gas

$4.80 one way

$9.60 round trip

$3.97/gal 25.4 MPG avg 11 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.36 $5.27 $10.54
premium $4.89 $5.91 $11.82
diesel $5.61 $6.78 $13.56

No toll roads detected on this route.

Drive Cost (one way)

Fuel

$5

Estimated CO2 emission: 10.7 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $3 in charging · 0 stops · 64% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 9.2 0 $3.22 $1.47
Efficient EV 7.7 0 $2.69 $1.23
EV Truck/SUV 12.3 0 $4.30 $1.96

Gas CO2

11 kg

EV CO2

4 kg (64% 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 15, 2026

Origin

Saint Charles, MO

Late night in Saint Charles on Friday

Local time

12:28 AM

CDT

Current temp

57°F

Unavailable

Live forecast

Destination

Arnold, MO

Late night in Arnold on Friday

Local time

12:28 AM

CDT

Current temp

57°F

Unavailable

Live forecast

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

41m on the road

Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.

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

Frequently Asked Questions

The drive from Saint Charles, MO to Arnold, MO covers 30.7 miles and takes about 41m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Jefferson Street, South Fifth Street, I 70 East. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 15.3 miles from Saint Charles, MO. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $4.80 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
The drive from Saint Charles, MO to Arnold, MO is easy. At 41m with 0% highway, most drivers will find it relaxed and low-stress.
This route does not have any notably tricky sections. Most of the drive from Saint Charles, MO to Arnold, MO is straightforward, with well-signed roads and simple exits.
The route from Saint Charles, MO to Arnold, MO does not surface many named destination signs beyond the main corridor.

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