How far is Herculaneum, MO from Saint Charles, MO?
The driving distance from Herculaneum, MO to Saint Charles, MO is about 43.5 miles (70 km), with a travel time of about 00h 47m by car.
- The straight-line flight distance is about 36 miles (58 km).
- For a round trip, plan for roughly 01h 34m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 00h 47m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Census designated place
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Herculaneum and Saint Charles.
Turn-by-Turn Driving Directions
Step-by-step road directions between Herculaneum and Saint Charles.
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1
Start on the route
17 m · 7 sec
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2
Turn right onto Joachim Avenue
1 km · 2 min · Joachim Avenue
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3
At the end of the road, turn right onto Commercial Boulevard
1.3 mi · 2 min · Commercial Boulevard
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4
Turn left
2237 ft · 45 sec
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5
Take the ramp slight right toward I 55 North: Saint Louis
1719 ft · 42 sec
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6
Merge slight left
13.9 mi · 15 min
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7
Continue on Rosa Parks Highway
1.3 mi · 2 min · Rosa Parks Highway
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8
Take the exit slight right toward I 270 West, I 255 East: Kansas City, Chicago
1279 ft · 27 sec
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9
Keep slight left to continue on I 270 West: Kansas City
118 m · 8 sec
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10
Continue on I 270 West
1.2 km · 1 min
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11
Merge slight left
18.1 mi · 23 min
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12
Take the exit slight right toward I 70: Kansas City, Saint Louis, Saint Louis Lambert International Airport
1 mi · 1 min
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13
Keep slight left to continue on I 70 West: Kansas City
645 ft · 11 sec
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14
Continue on I 70 West: Kansas City
1 km · 57 sec
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15
Merge slight left
2.7 mi · 3 min
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16
Take the exit slight right toward I 70 Business: Fifth Street
841 ft · 18 sec
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17
Keep slight right to continue on I 70 Business: Fifth Street North, Bass Pro Drive, Ameristar Boulevard
71 m · 5 sec
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18
Turn slight right onto South Fifth Street
1.6 km · 2 min · South Fifth Street
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19
Turn right onto Jefferson Street
1093 ft · 44 sec · Jefferson Street
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20
Turn left onto North Second Street
949 ft · 34 sec · North Second Street
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21
Arrive at your destination
0 m · 1 sec · North Second Street
Car Route Details
A richer read on the saved driving route between Herculaneum and Saint Charles.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 270 West
Merge slight left
18.1 mi · 00h 23m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Showers And Thunderstorms Likely leaving Herculaneum and Showers And Thunderstorms near Saint Charles.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Herculaneum to Saint Charles?
The road trip is about 43.5 miles (70 km) and usually takes 00h 47m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Sappington is a useful midpoint, sitting about 21.6 miles from Herculaneum and 21.9 miles from Saint Charles.
How much longer is the road route than the straight-line distance?
The direct path is about 36 miles (58 km), while the road route adds roughly 7.5 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 4:56 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.77 one way or $11.54 round trip. Estimated CO2 is about 13.6 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around Herculaneum and Showers And Thunderstorms near Saint Charles.
Stop Ideas Near Sappington
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Sappington.
Kirkwood
Gateway Transportation Center
Alton
Washington
Flight Path Map
This map shows the direct air route between Herculaneum and Saint Charles. Straight-line distance: 36.04 mi (58 km).
#1 Herculaneum
Roman town
| Population | 4,261 |
| Coordinates | 38.2683900, -90.3801200 |
| Altitude | 135 |
| Country | United States |
#2 Saint Charles
A city in St.
| Population | 71,761 |
| Coordinates | 38.7839400, -90.4812300 |
| Altitude | 147 |
| Country | United States |
End: North Second Street (-90.481269, 38.783952)
Estimated Travel Time
Distance: 70 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 26m |
| 40 mph (64.37 km/h) | 01h 05m |
| 50 mph (80.47 km/h) | 00h 52m |
| 60 mph (96.56 km/h) | 00h 43m |
| 70 mph (112.65 km/h) | 00h 37m |
| 80 mph (129 km/h) | 00h 32m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $5.77 | $11.54 |
| Mid-grade | $4.25 | $6.51 | $13.01 |
| Premium | $4.65 | $7.12 | $14.24 |
| Diesel | $5.30 | $8.12 | $16.23 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Missouri · Apr 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.