How far is Knob Noster, MO from St. Louis, MO?
The driving distance from Knob Noster, MO to St. Louis, MO is about 205.2 miles (330.2 km), with a travel time of about 03h 19m by car.
- The straight-line flight distance is about 181.4 miles (292 km).
- For a round trip, plan for roughly 06h 38m 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 03h 19m.
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.
Human settlement in Callaway County, Missouri, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Knob Noster and St. Louis.
Turn-by-Turn Driving Directions
Step-by-step road directions between Knob Noster and St. Louis.
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1
Start on North Madison Avenue
7 m · 1 sec · North Madison Avenue
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2
Continue on West South Railroad Street
667 ft · 35 sec · West South Railroad Street
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3
Turn left onto North State Street
762 ft · 28 sec · North State Street
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4
At the end of the road, turn right
15.9 mi · 19 min
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5
Turn left onto West Main Street
57 m · 7 sec · West Main Street
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6
Continue on West Main Street
1.7 mi · 4 min · West Main Street
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7
Take the ramp right toward US 65 South
727 ft · 27 sec
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8
Turn sharp left
17.9 mi · 21 min
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9
Take the exit slight right toward I 70 East: Saint Louis
1866 ft · 40 sec
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10
Merge slight left onto U.S. Submarine Veterans' Memorial Highway
22.9 mi · 25 min · U.S. Submarine Veterans' Memorial Highway
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11
Keep slight left to continue on U.S. Submarine Veterans' Memorial Highway
22.4 mi · 24 min · U.S. Submarine Veterans' Memorial Highway
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12
Continue on Dwight D. Eisenhower Highway
1.8 mi · 2 min · Dwight D. Eisenhower Highway
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13
Continue on Highway Patrol Sgt. Benjamin Booth Memorial Highway
1.6 mi · 2 min · Highway Patrol Sgt. Benjamin Booth Memorial Highway
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14
Continue on Sheriff Roger I. Wilson Memorial Highway
1.9 mi · 2 min · Sheriff Roger I. Wilson Memorial Highway
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15
Continue on Dwight D. Eisenhower Highway
81 mi · 1 hr 35 min · Dwight D. Eisenhower Highway
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16
Take the exit slight right toward I 64 East, US 40 East, US 61 South: Chesterfield
1567 ft · 33 sec
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17
Merge slight left onto Avenue of the Saints
27.7 mi · 34 min · Avenue of the Saints
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18
Continue on Daniel Boone Expressway
5.7 mi · 7 min · Daniel Boone Expressway
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19
Continue on Jack Buck Memorial Highway
5.8 mi · 7 min · Jack Buck Memorial Highway
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20
Take the exit slight right toward 14th Street
1115 ft · 34 sec
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21
Turn left onto South 14th Street
1715 ft · 42 sec · South 14th Street
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22
Turn right onto Market Street
956 ft · 25 sec · Market Street
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23
Arrive at your destination
0 m · 1 sec · Market Street
Car Route Details
A richer read on the saved driving route between Knob Noster and St. Louis.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Dwight D. Eisenhower Highway
Continue on Dwight D. Eisenhower Highway
81 mi · 01h 35m
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.
Sunny leaving Knob Noster and Sunny near St. Louis.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Knob Noster to St. Louis?
The road trip is about 205.2 miles (330.2 km) and usually takes 03h 19m 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?
Kingdom City is a useful midpoint, sitting about 103.8 miles from Knob Noster and 101.3 miles from St. Louis.
How much longer is the road route than the straight-line distance?
The direct path is about 181.4 miles (292 km), while the road route adds roughly 23.8 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 10:22 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $27.30 one way or $54.60 round trip. Estimated CO2 is about 64.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Knob Noster and Sunny near St. Louis.
Stop Ideas Near Kingdom 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 Kingdom City.
Jefferson City
Hermann
Washington
Sedalia
Flight Path Map
This map shows the direct air route between Knob Noster and St. Louis. Straight-line distance: 181.47 mi (292.05 km).
#1 Knob Noster
City in Johnson County, Missouri, United States
| Population | 2,799 |
| Coordinates | 38.7666800, -93.5585500 |
| Altitude | 245 |
| Country | United States |
#2 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 |
End: Market Street (-90.197859, 38.627348)
Estimated Travel Time
Distance: 330 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 50m |
| 40 mph (64.37 km/h) | 05h 07m |
| 50 mph (80.47 km/h) | 04h 06m |
| 60 mph (96.56 km/h) | 03h 25m |
| 70 mph (112.65 km/h) | 02h 55m |
| 80 mph (129 km/h) | 02h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $27.30 | $54.60 |
| Mid-grade | $4.25 | $30.79 | $61.58 |
| Premium | $4.65 | $33.69 | $67.39 |
| Diesel | $5.30 | $38.40 | $76.80 |
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 · May 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.