Origin
Saint Charles, MO
Late night in Saint Charles on Friday
Local time
12:10 AM
CDT
Current temp
57°F
Unavailable
Live forecast
Trip from Saint Charles, MO to Marlborough, MO
Compiled by the Trip.ovh editorial team · Last recalculated Apr 17, 2026 · Methodology
Drive Time
35m
Distance
23.3 mi
38 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$4
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 33m
★
6 AM
0h 36m
8 AM
0h 42m
10 AM
0h 38m
12 PM
0h 37m
3 PM
0h 38m
5 PM
0h 42m
8 PM
0h 34m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Saint Charles, MO
Wikimedia Commons
Marlborough, MO
Valeria Boltneva
Trip Overview
The drive from Saint Charles, MO to Marlborough, MO covers 23.3 miles and takes about 35m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on I 70, Inner Belt Expressway, Laclede Station Road for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 8.9 miles on I 70. At current regular gas prices, budget about $3.64 one way before food or hotel costs.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 35m. Total distance: 23.3 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
35m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (69%). Some complex stretches to watch for.
Drive Character
This is a 35m highway drive covering 23.3 miles, with most of the trip on I 70 and Inner Belt Expressway. The longest continuous stretch is about 8.9 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 18 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 8.9 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on I 70 and Inner Belt Expressway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.2 miles in near Jefferson Street.
Driving Effort
9/10
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 13 decision points packed into just 23.3 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 35m.
Where does it get tricky?
The main spots that need attention: at 0.2 miles (Jefferson Street): Navigation decision point; at 0.4 miles (MO 94 / South Fifth Street): Lane positioning matters here; at 10.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Critical Maneuvers
5 of 13 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
0.2 mi into trip
|
~0m in
|
Jefferson Street
Turn right onto Jefferson Street
Navigation decision point
6
0.4 mi into trip
|
~1m in
|
MO 94 / South Fifth Street
Turn left onto MO 94 / South Fifth Street
Lane positioning matters here
Use the straight / right lanes.
7
10.6 mi into trip
|
~15m in
Take the exit toward I 170 South: Clayton
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 238A
Toward I 170 South: Clayton
8
18.1 mi into trip
|
~25m in
Take the exit toward Brentwood Boulevard North, Eager Road
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 1C
Toward Brentwood Boulevard North, Eager Road
6
18.3 mi into trip
|
~25m in
Keep slight left at fork toward Eager Road
Highway fork - watch signs carefully
Toward Eager Road
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 Charles, MO to Marlborough, MO, road signs begin pointing toward Brentwood Boulevard North along the way.
Brentwood Boulevard North
18.1 mi in
|
~25m
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 70 | 8.9 mi | 11m |
| Inner Belt Expressway | 7.1 mi | 8m |
| Laclede Station Road | 2.5 mi | 4m |
| South Hanley Road | 1.6 mi | 3m |
| South Fifth Street | 1.1 mi | 2m |
| Eager Road | 0.4 mi | <1m |
| Jefferson Street | 0.2 mi | <1m |
| North Second Street | 0.2 mi | <1m |
Longest stretch:
I 70
— 8.9 mi, about 11m
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Charles, MO and Marlborough, MO.
1
Start on North Second Street
0.2 mi
·
38 sec
·
North Second Street
2
Turn right onto Jefferson Street
0.2 mi
·
44 sec
·
Jefferson Street
3
Turn left onto MO 94
1.1 mi
·
2 min
·
South Fifth Street
Use the straight / right lanes.
4
Take the ramp
0.2 mi
·
14 sec
Toward I 70 East
Use the left / straight lanes.
5
Merge onto I 70
8.9 mi
·
11 min
·
I 70
Use the straight lane.
6
Take the exit
0.4 mi
·
40 sec
Exit 238A
Toward I 170 South: Clayton
Use the slight right lane.
7
Merge onto I 170
7.1 mi
·
8 min
·
Inner Belt Expressway
8
Take the exit
0.2 mi
·
21 sec
Exit 1C
Toward Brentwood Boulevard North, Eager Road
Use the straight / slight right lanes.
9
Keep slight left at fork
512 ft
·
10 sec
Toward Eager Road
10
Continue on this road
0.1 mi
·
14 sec
·
this road
Exit 1C
Toward Eager Road
11
Turn left onto Eager Road
0.4 mi
·
49 sec
·
Eager Road
Use the left / straight lanes.
12
Turn slight right
512 ft
·
18 sec
13
Keep slight left at fork
137 ft
·
5 sec
14
Turn right onto South Hanley Road
1.6 mi
·
3 min
·
South Hanley Road
15
Continue on Laclede Station Road
2.5 mi
·
4 min
·
Laclede Station Road
16
Turn left onto Wimbledon Drive
0.2 mi
·
40 sec
·
Wimbledon Drive
17
Turn right onto MO 366
149 ft
·
3 sec
·
Watson Road
18
Arrive at destination
MO 366
Fuel & Cost
Regular Gas
$3.64 one way
$7.29 round trip
$3.97/gal
25.4 MPG avg
8 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $4.00 | $8.00 |
| premium | $4.89 | $4.48 | $8.97 |
| diesel | $5.61 | $5.14 | $10.29 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$4
Estimated CO2 emission: 8.2 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 | $2.45 | $1.12 |
| Efficient EV | 5.8 | 0 | $2.04 | $0.93 |
| EV Truck/SUV | 9.3 | 0 | $3.26 | $1.49 |
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.
Destination
Marlborough, MO
Late night in Marlborough on Friday
Local time
12:10 AM
CDT
Current temp
58°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
1 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
35m 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 Marlborough, MO covers 23.3 miles and takes about 35m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 70, Inner Belt Expressway, Laclede Station 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 11.7 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 $3.64 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 is a short but busy drive. With 13 decision points packed into just 23.3 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 35m.
The main spots that need attention: at 0.2 miles (Jefferson Street): Navigation decision point; at 0.4 miles (MO 94 / South Fifth Street): Lane positioning matters here; at 10.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
On the drive from Saint Charles, MO to Marlborough, MO, road signs begin pointing toward Brentwood Boulevard North along the way.
Yes. Nearby national parks include Gateway Arch National Park.
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