How far is Knob Noster, MO from Saint Peters, MO?
The driving distance from Knob Noster, MO to Saint Peters, MO is about 180.6 miles (290.6 km), with a travel time of about 02h 48m by car.
- The straight-line flight distance is about 158 miles (254.2 km).
- For a round trip, plan for roughly 05h 36m 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 02h 48m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
The most populous city in the state of Missouri.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Knob Noster and Saint Peters.
Turn-by-Turn Driving Directions
Step-by-step road directions between Knob Noster and Saint Peters.
-
1
Start on North Madison Avenue
7 m · 1 sec · North Madison Avenue
-
2
Continue on West South Railroad Street
667 ft · 35 sec · West South Railroad Street
-
3
Turn left onto North State Street
762 ft · 28 sec · North State Street
-
4
At the end of the road, turn right
15.9 mi · 19 min
-
5
Turn left onto West Main Street
57 m · 7 sec · West Main Street
-
6
Continue on West Main Street
1.7 mi · 4 min · West Main Street
-
7
Take the ramp right toward US 65 South
727 ft · 27 sec
-
8
Turn sharp left
17.9 mi · 21 min
-
9
Take the exit slight right toward I 70 East: Saint Louis
1866 ft · 40 sec
-
10
Merge slight left onto U.S. Submarine Veterans' Memorial Highway
22.9 mi · 25 min · U.S. Submarine Veterans' Memorial Highway
-
11
Keep slight left to continue on U.S. Submarine Veterans' Memorial Highway
22.4 mi · 24 min · U.S. Submarine Veterans' Memorial Highway
-
12
Continue on Dwight D. Eisenhower Highway
1.8 mi · 2 min · Dwight D. Eisenhower Highway
-
13
Continue on Highway Patrol Sgt. Benjamin Booth Memorial Highway
1.6 mi · 2 min · Highway Patrol Sgt. Benjamin Booth Memorial Highway
-
14
Continue on Sheriff Roger I. Wilson Memorial Highway
1.9 mi · 2 min · Sheriff Roger I. Wilson Memorial Highway
-
15
Continue on Dwight D. Eisenhower Highway
92.8 mi · 1 hr 50 min · Dwight D. Eisenhower Highway
-
16
Take the exit slight right toward Mid Rivers Mall Drive
889 ft · 19 sec
-
17
Keep slight left to continue on Mid Rivers Mall Drive
63 m · 4 sec
-
18
Turn straight onto Mid Rivers Mall Drive
61 m · 6 sec · Mid Rivers Mall Drive
-
19
Take the ramp straight toward I 70 West: Wentzville
1419 ft · 20 sec
-
20
Merge slight left
146 m · 7 sec
-
21
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Knob Noster and Saint Peters.
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
92.8 mi · 01h 50m
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.
Sunny leaving Knob Noster and Sunny near Saint Peters.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Knob Noster to Saint Peters?
The road trip is about 180.6 miles (290.6 km) and usually takes 02h 48m 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?
Columbia is a useful midpoint, sitting about 90 miles from Knob Noster and 90.6 miles from Saint Peters.
How much longer is the road route than the straight-line distance?
The direct path is about 158 miles (254.2 km), while the road route adds roughly 22.6 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 12:54 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $26.08 one way or $52.16 round trip. Estimated CO2 is about 56.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Knob Noster and Sunny near Saint Peters.
Stop Ideas Near Columbia
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 Columbia.
Jefferson City
Sedalia
Hermann
Flight Path Map
This map shows the direct air route between Knob Noster and Saint Peters. Straight-line distance: 157.93 mi (254.16 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 Saint Peters
The most populous city in St.
| Population | 58,043 |
| Coordinates | 38.8003300, -90.6265100 |
| Altitude | 134 |
| Country | United States |
End: I 70 West (-90.626511, 38.800311)
Estimated Travel Time
Distance: 291 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 00m |
| 40 mph (64.37 km/h) | 04h 30m |
| 50 mph (80.47 km/h) | 03h 36m |
| 60 mph (96.56 km/h) | 03h 00m |
| 70 mph (112.65 km/h) | 02h 34m |
| 80 mph (129 km/h) | 02h 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $26.08 | $52.16 |
| Mid-grade | $4.46 | $28.43 | $56.86 |
| Premium | $4.82 | $30.70 | $61.41 |
| Diesel | $6.15 | $39.19 | $78.39 |
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 · Oct 02, 2026