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Trip from Saint Charles, MO to Green Park, MO

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Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Sep 2, 2026 · Editorial standards

Drive Time

36m

Distance

25.1 mi

40 km

Drive Score

7/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$4

one way

EV Charging

Unknown

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 38m
3 PM
0h 39m
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
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Download GPX
city in and county seat of St. Charles County, Missouri, United States

Saint Charles, MO

Wikimedia Commons

Downtown Green Park, MO, MO

Green Park, MO

Yunus Tuğ

Trip Overview

The drive from Saint Charles, MO to Green Park, MO covers 25.1 miles and takes about 36m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.

The route leans on I 270, I 70, Tesson Ferry Road for much of the mileage, and the overall profile is mostly highway. The longest uninterrupted segment is about 17.4 miles on I 270. At current regular gas prices, budget about $3.89 one way before food or hotel costs.

Main Roads

Road Distance Duration
I 270 17.4 mi 21m
I 70 2.7 mi 3m
Tesson Ferry Road 1.2 mi 2m
South Fifth Street 1.1 mi 2m
South Lindbergh Boulevard 0.4 mi 1m
Antigo Drive 0.3 mi 1m
Mueller Road 0.3 mi <1m
Jefferson Street 0.2 mi <1m
Longest stretch: I 270 — 17.4 mi, about 21m

Traffic on I-70

Hour-of-day weekday pattern from 22 FHWA count stations on your route.

Peak

4 PM

~6,486 veh/hr typical

Quietest

2 AM

~540 veh/hr

Peak-to-quiet ratio

12×

busier at peak than in the quiet hours

12a 6a noon 6p 11p

Averaged across 105 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).

Turn-by-Turn Driving Directions

Step-by-step road directions between Saint Charles, MO and Green Park, 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

2.7 mi · 3 min · I 70
6

Take the exit

0.2 mi · 12 sec
Exit 232 Toward I 270: Chicago, Memphis Use the slight right lane.
7

Keep slight right at fork

0.4 mi · 33 sec
Toward I 270 South: Memphis Use the slight right lane.
8

Continue on this road

0.1 mi · 10 sec · this road
Exit 232 Toward I 270 South: Memphis
9

Merge onto I 270

17 mi · 21 min · I 270
Use the straight lane.
10

Take the exit

0.2 mi · 22 sec
Exit 2 Toward MO 21: Tesson Ferry Road Use the slight right lane.
11

Keep slight left at fork

235 ft · 7 sec
Toward MO 21 North: Tesson Ferry Road Use the left lane.
12

Turn left

119 ft · 2 sec
Exit 2 Toward MO 21
13

Merge onto MO 21

1.2 mi · 2 min · Tesson Ferry Road
14

Turn right onto US 50; US 61; US 67

0.4 mi · 1 min · South Lindbergh Boulevard
15

Turn left onto Mueller Road

0.3 mi · 49 sec · Mueller Road
16

Turn right onto Antigo Drive

0.3 mi · 1 min · Antigo Drive
17

Turn left onto Arnett Drive

302 ft · 13 sec · Arnett Drive
18

Arrive at destination

Arnett Drive

Heads-up: tricky spots

5 of 14

5 decision points cluster between mile 0.4 and 22.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

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.
8
4.3 mi into trip | ~7m in

Take the exit toward I 270: Chicago, Memphis

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 232 Toward I 270: Chicago, Memphis
7
4.5 mi into trip | ~8m in

Keep slight right at fork toward I 270 South: Memphis

Highway fork - watch signs carefully. Lane positioning matters here

Use the slight right lane. Toward I 270 South: Memphis
7
22.5 mi into trip | ~30m in

Take the exit toward MO 21: Tesson Ferry Road

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

Use the slight right lane. Exit 2 Toward MO 21: Tesson Ferry Road
8
22.7 mi into trip | ~30m in

Keep slight left at fork toward MO 21 North: Tesson Ferry Road

Highway fork - watch signs carefully. Lane positioning matters here

Use the left lane. Toward MO 21 North: Tesson Ferry Road

Fuel & Cost

Regular Gas

$3.89 one way

$7.78 round trip

$3.94/gal 25.4 MPG avg 9 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.32 $4.27 $8.53
premium $4.93 $4.87 $9.74
diesel $5.60 $5.53 $11.07

No toll roads detected on this route.

Drive Cost (one way)

Fuel

$4

Estimated CO2 emission: 8.8 kg one way. Prices: EIA weekly data, 2026-08-31.

Driving Electric?

About $3 in charging · 0 stops · 67% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 7.5 0 $2.64 $1.20
Efficient EV 6.3 0 $2.20 $1.00
EV Truck/SUV 10 0 $3.51 $1.61

Gas CO2

9 kg

EV CO2

3 kg (67% 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 Aug 31, 2026

Origin

Saint Charles, MO

Afternoon in Saint Charles on Wednesday

Local time

3:49 PM

CDT

Current temp

75°F

Mostly Clear

S 7 mph 0% chance Live forecast

Heat Advisory

Heat Advisory issued August 30 at 7:52PM CDT until September 1 at 10:00AM CDT by NWS Paducah KY

Extreme Heat Watch

Extreme Heat Watch issued August 30 at 7:52PM CDT until September 4 at 8:00PM CDT by NWS Paducah KY

Destination

Green Park, MO

Afternoon in Green Park on Wednesday

Local time

3:49 PM

CDT

Current temp

73°F

Mostly Clear

S 6 mph 0% chance Live forecast

Heat Advisory

Heat Advisory issued August 30 at 7:52PM CDT until September 1 at 10:00AM CDT by NWS Paducah KY

Extreme Heat Watch

Extreme Heat Watch issued August 30 at 7:52PM CDT until September 4 at 8:00PM CDT by NWS Paducah KY

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

2 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

36m 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?

25.1 mi in 36m, mostly highway — 17.4 mi of that is on I 270.

80% highway — fuel and pacing are the main things to plan.
18 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 17.4 mi on I 270.

How Hard Is This Drive?

9/10

This is a straightforward highway drive that stays mostly on I 270 and I 70. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.4 miles in near MO 94 / South Fifth 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 14 decision points packed into just 25.1 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 36m.

Where does it get tricky?

The main spots that need attention: at 0.4 miles (MO 94 / South Fifth Street): Lane positioning matters here; at 4.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 4.5 miles: Highway fork - watch signs carefully. Lane positioning matters here.

Elevation Profile

Mostly flat terrain

647 ft 451 ft

Total Climb

356 ft

Total Descent

298 ft

Highest Point

647 ft

~12.6 mi in

Elevation Range

196 ft

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 Green Park, MO, road signs begin pointing toward Memphis along the way.

Memphis

4.3 mi in | ~7m

About the Cities

Starting in Saint Charles, MO

Full guide →

Founded 1765

St. Charles, Missouri is outside of St. Louis on the bank of the Missouri River. It was Missouri's first state capital and was one of the first stops by Lewis and Clark on their journey to explore Louisiana Territory. The historic Main Street has largely been restored to its 1812-era appearance including gas lights a boardwalk and is lined with shops selling artwork, handicrafts, home decorations, antiques. There are also many restaurants.

Top landmarks

  • • First Missouri State Capitol State Historic Site — historic site in Missouri, United States
  • • African Church — church building in Missouri, United States of America
  • • Frenchtown Historic District — historic district in St. Charles County, Missouri

Arriving in Green Park, MO

Full guide →

City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 36m. Total distance: 25.1 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

36m drive, comfortable solo distance.

EV Driver

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

First-Time Driver

Mostly highway driving (80%). Some complex stretches to watch for.

Frequently Asked Questions

The longest stretch is about 17.4 miles on I 270. 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 Green Park, 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 0.4 miles (MO 94 / South Fifth Street): Lane positioning matters here; at 4.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 4.5 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 Green Park, 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, USGS 3DEP for elevation, NPS for national parks, and FHWA TMAS for hourly traffic volumes. See our methodology for refresh cadence and limitations.

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