Origin
O'Fallon, MO
Afternoon in O'Fallon on Saturday
Local time
1:40 PM
CDT
Current temp
57°F
Unavailable
Live forecast
Trip from O'Fallon, MO to Herculaneum, MO
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
1h 8m
Distance
53.8 mi
87 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$8
one way
EV Charging
Unknown
Best Time to Leave
4 AM
1h 3m
★
6 AM
1h 9m
8 AM
1h 20m
10 AM
1h 13m
12 PM
1h 12m
3 PM
1h 13m
5 PM
1h 19m
8 PM
1h 6m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
O'Fallon, MO
Wikimedia Commons
Herculaneum, MO
Wikimedia Commons
Trip Overview
O'Fallon, MO to Herculaneum, MO is 53.8 miles and takes about 1h 8m via I 270, I 70, and Police Officer Steven Jarvis Memorial Highway, with a fuel budget near $8 and enough daylight to finish in a day. This trip stays within Missouri, connecting two points in the Midwest region. Expect a drive that is primarily highway-focused, making it a straightforward journey. With its relatively short distance and duration, this route is well-suited for a same-day excursion, allowing for flexibility in your schedule without feeling rushed.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 270 | 19 mi | 23m |
| I 70 | 13.5 mi | 16m |
| Police Officer Steven Jarvis Memorial Highway | 12 mi | 13m |
| Officer Thomas G. Smith, Jr. Memorial Highway | 1.8 mi | 2m |
| Rosa Parks Highway | 1.5 mi | 1m |
| Commercial Boulevard | 1.3 mi | 2m |
| Drennen Parkway | 0.9 mi | 1m |
| Joachim Avenue | 0.6 mi | 1m |
Longest stretch:
I 270
— 19 mi, about 23m
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Fallon, MO and Herculaneum, MO.
1
Start on this road
25 ft
·
7 sec
·
this road
2
Turn left onto South Main Street
0.6 mi
·
1 min
·
South Main Street
3
Turn left onto Drennen Parkway
0.9 mi
·
1 min
·
Drennen Parkway
Use the left lane.
4
Take the ramp
438 ft
·
6 sec
Toward I 70 East: Saint Louis
Use the slight left lane.
5
Merge onto I 70
14 mi
·
16 min
·
I 70
Use the straight / slight right lanes.
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
19 mi
·
23 min
·
I 270
Use the straight lane.
10
Take the exit
0.4 mi
·
27 sec
Exit 1A
Toward I 55, US 61, US 67: Saint Louis, Memphis, Lemay Ferry Road
Use the straight / slight right lanes.
11
Keep slight right at fork
0.4 mi
·
43 sec
Toward I 55 South: Memphis
12
Merge onto I 55
1.5 mi
·
1 min
·
Rosa Parks Highway
13
Continue on I 55
1.8 mi
·
2 min
·
Officer Thomas G. Smith, Jr. Memorial Highway
14
Continue on I 55
12 mi
·
13 min
·
Police Officer Steven Jarvis Memorial Highway
Use the straight / slight right lanes.
15
Take the exit
0.3 mi
·
40 sec
Exit 180
Toward MO Z: Pevely
16
Turn left onto MO Z
0.5 mi
·
1 min
·
MO Z
17
Turn right onto US 61; US 67
1.3 mi
·
2 min
·
Commercial Boulevard
18
Turn left onto Joachim Avenue
0.6 mi
·
1 min
·
Joachim Avenue
19
Turn left
56 ft
·
4 sec
20
Arrive at destination
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
27 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 12 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 26.9 miles from O'Fallon, MO, which is a good place for a longer meal and fuel stop.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Heads-up: tricky spots
5 of 155 decision points cluster between mile 0.6 and 34.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0.6 mi into trip
|
~1m in
|
Drennen Parkway
Turn left onto Drennen Parkway
Lane positioning matters here
Use the left lane.
5
1.5 mi into trip
|
~3m in
Take the ramp toward I 70 East: Saint Louis
Lane positioning matters here
Use the slight left lane.
Toward I 70 East: Saint Louis
8
15.1 mi into trip
|
~20m 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
15.2 mi into trip
|
~20m 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
8
34.8 mi into trip
|
~44m in
Take the exit toward I 55, US 61, US 67: Saint Louis, Memphis, Lemay Ferry 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 1A
Toward I 55, US 61, US 67: Saint Louis, Memphis...
Fuel & Cost
Regular Gas
$8.41 one way
$16.82 round trip
$3.97/gal
25.4 MPG avg
19 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $9.23 | $18.47 |
| premium | $4.89 | $10.35 | $20.71 |
| diesel | $5.61 | $11.88 | $23.76 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$8
Estimated CO2 emission: 18.8 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $6 in charging · 0 stops · 68% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 16.1 | 0 | $5.65 | $2.58 |
| Efficient EV | 13.5 | 0 | $4.71 | $2.15 |
| EV Truck/SUV | 21.5 | 0 | $7.53 | $3.44 |
Gas CO2
19 kg
EV CO2
6 kg (68% 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
Herculaneum, MO
Afternoon in Herculaneum on Saturday
Local time
1:40 PM
CDT
Current temp
55°F
Unavailable
Live forecast
80°F
Fenton, MO
27 mi in
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
1h 8m 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.
What kind of drive is this?
This route is largely a highway-focused drive, with 62% of it on major interstates. You'll encounter stretches like the 19 miles on I 270, which offers a consistent pace. The Police Officer Steven Jarvis Memorial Highway will also feature prominently in your journey. While predominantly highway, the experience is straightforward, designed for efficient travel rather than extensive sightseeing. The character remains consistent, making it easy to maintain a steady speed.
62% highway — fuel and pacing are the main things to plan.
20 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 19 mi on I 270.
How Hard Is This Drive?
10/10
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 0.6 miles in near Drennen Parkway.
Driving Effort
10/10
Demanding - stay alert through the decision-heavy sections
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 53.8 miles you will encounter 15 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 0.6 miles (Drennen Parkway): Lane positioning matters here; at 1.5 miles: Lane positioning matters here; at 15.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between O'Fallon, MO and Herculaneum, MO, road signs point toward Memphis and Mo Z: Pevely.
Memphis
15.1 mi in
|
~20m
Mo Z: Pevely
51 mi in
|
~1h 3m
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 1h 8m. Total distance: 53.8 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 8m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (62%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 19 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 Herculaneum, 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 0.6 miles (Drennen Parkway): Lane positioning matters here; at 1.5 miles: Lane positioning matters here; at 15.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Gateway Arch National Park and Ste. Geneviève National Historical 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 Herculaneum, MO before heading back.
How this page is built
Compiled by the Trip.ovh 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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