How far is St. Louis, MO from Trenton, MO?
The driving distance from St. Louis, MO to Trenton, MO is about 258.4 miles (415.8 km), with a travel time of about 05h 18m by car.
- The straight-line flight distance is about 208.3 miles (335.3 km).
- For a round trip, plan for roughly 10h 37m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 05h 18m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Monroe County, Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Partly Cloudy
Driving Route Map
The map below follows the saved road route between St. Louis and Trenton.
Turn-by-Turn Driving Directions
Step-by-step road directions between St. Louis and Trenton.
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1
Start on Market Street
1.6 mi · 3 min · Market Street
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2
Take the ramp slight left toward I 64 West, US 40 West: Wentzville
1531 ft · 24 sec
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3
Merge slight left onto Jack Buck Memorial Highway
4.3 mi · 6 min · Jack Buck Memorial Highway
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4
Continue on Daniel Boone Expressway
5.7 mi · 7 min · Daniel Boone Expressway
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5
Continue on Avenue of the Saints
101.2 mi · 2 hr 1 min · Avenue of the Saints
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6
Take the exit slight left
76 m · 15 sec
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7
Turn left onto Paris Gravel Road
2645 ft · 1 min · Paris Gravel Road
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8
Keep slight right to continue on County Road 422
85 m · 9 sec · County Road 422
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9
Turn right onto Veterans Road
2.2 mi · 4 min · Veterans Road
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10
Take the ramp left toward US 36 West, MO 110 West: Monroe City
1226 ft · 16 sec
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11
Merge slight left onto V.F.W. Memorial Highway
5.8 mi · 7 min · V.F.W. Memorial Highway
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12
Continue on Chicago-Kansas City Expressway
111.4 mi · 2 hr 9 min · Chicago-Kansas City Expressway
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13
Take the exit slight right toward US 65, US 36 Business: Chillicothe, Carrollton
975 ft · 28 sec
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14
Turn right onto South Washington Street
22.8 mi · 37 min · South Washington Street
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15
Turn slight right
1372 ft · 56 sec
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16
Turn left onto 10th Street
698 ft · 14 sec · 10th Street
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17
Continue on East 9th Street
1.3 mi · 2 min · East 9th Street
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18
Turn right onto Main Street
656 ft · 13 sec · Main Street
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19
Turn left onto Mable Street
1020 ft · 21 sec · Mable Street
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20
Arrive at your destination
0 m · 1 sec · Mable Street
Car Route Details
A richer read on the saved driving route between St. Louis and Trenton.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Chicago-Kansas City Expressway
Continue on Chicago-Kansas City Expressway
111 mi · 02h 09m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Showers And Thunderstorms Likely leaving St. Louis and Partly Cloudy near Trenton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from St. Louis to Trenton?
The road trip is about 258.4 miles (415.8 km) and usually takes 05h 18m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Monroe City is a useful midpoint, sitting about 129.1 miles from St. Louis and 129.3 miles from Trenton.
How much longer is the road route than the straight-line distance?
The direct path is about 208.3 miles (335.3 km), while the road route adds roughly 50.1 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 6:22 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $34.39 one way or $68.78 round trip. Estimated CO2 is about 81 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around St. Louis and Partly Cloudy near Trenton.
Stop Ideas Near Monroe City
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 Monroe City.
Quincy
La Plata
Hermann
Fort Madison station
Flight Path Map
This map shows the direct air route between St. Louis and Trenton. Straight-line distance: 208.35 mi (335.31 km).
#1 St. Louis
The second most populous city in Missouri and the center of the St.
| Population | 315,685 |
| Coordinates | 38.6272700, -90.1978900 |
| Altitude | 142 |
| Country | United States |
#2 Trenton
City in Missouri
| Population | 5,620 |
| Coordinates | 40.0789000, -93.6166100 |
| Altitude | 256 |
| Country | United States |
End: Trenton (-93.61661, 40.0789)
Estimated Travel Time
Distance: 416 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 36m |
| 40 mph (64.37 km/h) | 06h 27m |
| 50 mph (80.47 km/h) | 05h 10m |
| 60 mph (96.56 km/h) | 04h 18m |
| 70 mph (112.65 km/h) | 03h 41m |
| 80 mph (129 km/h) | 03h 13m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $34.39 | $68.78 |
| Mid-grade | $4.25 | $38.79 | $77.57 |
| Premium | $4.65 | $42.44 | $84.89 |
| Diesel | $5.30 | $48.37 | $96.74 |
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 29, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.