Origin
Saint John, MO
Night in Saint John on Thursday
Local time
10:32 PM
CDT
Current temp
78°F
Unavailable
Live forecast
Trip from Saint John, MO to Saint Charles, MO
Last recalculated Apr 17, 2026
Drive Time
18m
Distance
11.3 mi
18 km
Drive Score
7/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$2
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 17m
★
6 AM
0h 19m
8 AM
0h 22m
10 AM
0h 20m
12 PM
0h 19m
3 PM
0h 20m
5 PM
0h 22m
8 PM
0h 18m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Saint John, MO
Erik Mclean
Saint Charles, MO
Wikimedia Commons
Trip Overview
The drive from Saint John, MO to Saint Charles, MO covers 11.3 miles and takes about 18m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on I 70, South Fifth Street, Brown Road for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 8.1 miles on I 70. At current regular gas prices, budget about $1.77 one way before food or hotel costs.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 18m. Total distance: 11.3 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
18m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (73%). Some complex stretches to watch for.
Drive Character
This is a 18m highway drive covering 11.3 miles, with most of the trip on I 70 and South Fifth Street. The longest continuous stretch is about 8.1 miles on I 70.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 13 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 70 is the longest continuous segment at about 8.1 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on I 70 and South Fifth Street. You will hit about 11 points where you need to pay attention to lane position or signs. The trickiest moment comes around 0.1 miles in near Marshall Road.
Driving Effort
6/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 11.3 miles you will encounter 11 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 0.1 miles (Marshall Road): Navigation decision point; at 0.1 miles (Saint Louis Avenue): Navigation decision point; at 1.4 miles (MO 115 / Natural Bridge Road): Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 11 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
0.1 mi into trip
|
~0m in
|
Marshall Road
Turn right onto Marshall Road
Navigation decision point
5
0.1 mi into trip
|
~0m in
|
Saint Louis Avenue
Turn left onto Saint Louis Avenue
Navigation decision point
5
1.4 mi into trip
|
~3m in
|
MO 115 / Natural Bridge Road
Take the ramp onto MO 115 / Natural Bridge Road toward I 70: Wentzville, Saint Louis
Multiple destination signs - pick the right one
Toward I 70: Wentzville, Saint Louis
7
9.7 mi into trip
|
~14m in
|
I 70 Business
Take the exit onto I 70 Business toward I 70 Business: Fifth Street
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 229B
Toward I 70 Business: Fifth Street
9
9.9 mi into trip
|
~14m in
Keep slight right at fork toward I 70 Business: Fifth Street North, Bass Pro Drive, Ameristar Boulevard
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the right lane.
Toward I 70 Business: Fifth Street North, Bass...
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Saint John, MO to Saint Charles, MO, road signs begin pointing toward Saint Louis along the way.
Saint Louis
1.4 mi in
|
~3m
|
via MO 115
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 70 | 8.1 mi | 10m |
| South Fifth Street | 1 mi | 2m |
| Brown Road | 1 mi | 2m |
| Natural Bridge Road | 0.5 mi | <1m |
| Jefferson Street | 0.2 mi | <1m |
| North Second Street | 0.2 mi | <1m |
| I 70 Business | 0.2 mi | <1m |
| Saint Louis Avenue | 0.1 mi | <1m |
Longest stretch:
I 70
— 8.1 mi, about 10m
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint John, MO and Saint Charles, MO.
1
Start on Mavis Place
324 ft
·
16 sec
·
Mavis Place
2
Turn right onto Marshall Road
218 ft
·
15 sec
·
Marshall Road
3
Turn left onto Saint Louis Avenue
0.1 mi
·
27 sec
·
Saint Louis Avenue
4
Turn right onto Brown Road
1.0 mi
·
2 min
·
Brown Road
5
Turn left onto MO 115
0.3 mi
·
30 sec
·
Natural Bridge Road
6
Take the ramp onto MO 115
0.2 mi
·
19 sec
·
Natural Bridge Road
Toward I 70: Wentzville, Saint Louis
7
Merge onto I 70
8.1 mi
·
10 min
·
I 70
Use the straight / slight right lanes.
8
Take the exit onto I 70 Business
0.2 mi
·
17 sec
·
I 70 Business
Exit 229B
Toward I 70 Business: Fifth Street
Use the straight / slight right lanes.
9
Keep slight right at fork
231 ft
·
5 sec
Toward I 70 Business: Fifth Street North, Bass Pro Drive, Ameristar Boulevard
Use the right lane.
10
Turn slight right onto I 70 Business
1.0 mi
·
2 min
·
South Fifth Street
Use the right lane.
11
Turn right onto Jefferson Street
0.2 mi
·
44 sec
·
Jefferson Street
12
Turn left onto North Second Street
0.2 mi
·
34 sec
·
North Second Street
13
Arrive at destination
North Second Street
Fuel & Cost
Regular Gas
$1.77 one way
$3.53 round trip
$3.97/gal
25.4 MPG avg
4 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $1.94 | $3.88 |
| premium | $4.89 | $2.17 | $4.35 |
| diesel | $5.61 | $2.49 | $4.99 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$2
Estimated CO2 emission: 4 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $1 in charging · 0 stops · 75% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 3.4 | 0 | $1.19 | $0.54 |
| Efficient EV | 2.8 | 0 | $0.99 | $0.45 |
| EV Truck/SUV | 4.5 | 0 | $1.58 | $0.72 |
Gas CO2
4 kg
EV CO2
1 kg (75% 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.
Destination
Saint Charles, MO
Night in Saint Charles on Thursday
Local time
10:32 PM
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
21 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
18m 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 John, MO to Saint Charles, MO covers 11.3 miles and takes about 18m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 70, South Fifth Street, Brown Road. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 5.7 miles from Saint John, MO. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $1.77 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.
This drive requires moderate attention. Across 11.3 miles you will encounter 11 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
The main spots that need attention: at 0.1 miles (Marshall Road): Navigation decision point; at 0.1 miles (Saint Louis Avenue): Navigation decision point; at 1.4 miles (MO 115 / Natural Bridge Road): Multiple destination signs - pick the right one.
On the drive from Saint John, MO to Saint Charles, MO, road signs begin pointing toward Saint Louis along the way.
Yes. Nearby national parks include Gateway Arch National Park.
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