How far is Saint Peters, MO from Clarkton, MO?

The driving distance from Saint Peters, MO to Clarkton, MO is about 213.7 miles (343.9 km), with a travel time of about 04h 11m by car.

  • The straight-line flight distance is about 166.2 miles (267.5 km).
  • For a round trip, plan for roughly 08h 22m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
213.68 mi
04h 11m
Flight
166.24 mi
267.53 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Saint Peters.

Flight Distance

Direct air line
166.24 mi
Kilometers
267.53 km
Flight Time
00h 20m

Driving Distance

Road route
213.68 mi
Kilometers
343.89 km
Drive Time
04h 11m

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 04h 11m.

Arrival Snapshot
Arrive in Clarkton
Thu, Apr 23, 2:53 PM CDT
Return by in Saint Peters
Thu, Apr 23, 7:04 PM CDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Saint Peters
2026-04-23T10:42
Arrive Clarkton
Thu, Apr 23, 2:53 PM CDT
Route Timing
04h 11m
One way by road
Best Departure Window
6:00 AM to 8:00 AM CDT
Leave early for more breathing room
Arrive between
10:11 AM to 12:11 PM CDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
8:38 AM CDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Saint Peters
9:00 PM CDT
Early departure recommended

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.

Mid-route stop
Longtown
MO

Village in the United States

From Saint Peters
106.9 mi
02h 05m
To Clarkton
106.8 mi
02h 05m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
82°F
Thursday

Mostly Sunny

Starts
Thu, Apr 23 6:00 AM CDT
Wind
6 to 16 mph S
Destination
81°F
Thursday

Sunny

Starts
Thu, Apr 23 6:00 AM CDT
Wind
10 to 20 mph S

Driving Route Map

The map below follows the saved road route between Saint Peters and Clarkton.

Turn-by-Turn Driving Directions

Step-by-step road directions between Saint Peters and Clarkton.

  1. 1

    Start on the route

    1.2 mi · 1 min

  2. 2

    Take the exit slight right toward MO 79: Elsberry, Louisiana

    725 ft · 15 sec

  3. 3

    Keep slight left to continue on MO 79

    117 m · 15 sec

  4. 4

    Turn left

    652 ft · 11 sec

  5. 5

    Take the ramp slight right toward I 70 East

    1294 ft · 19 sec

  6. 6

    Merge slight left

    11.9 mi · 15 min

  7. 7

    Take the exit slight right toward I 270: Chicago, Memphis

    872 ft · 12 sec

  8. 8

    Keep slight right to continue on I 270 South: Memphis

    2339 ft · 33 sec

  9. 9

    Continue on I 270 South: Memphis

    723 ft · 10 sec

  10. 10

    Merge slight left

    19 mi · 24 min

  11. 11

    Take the exit slight right toward I 55, US 61, US 67: Saint Louis, Memphis, Lemay Ferry Road

    1911 ft · 27 sec

  12. 12

    Keep slight right to continue on I 55 South: Memphis

    2031 ft · 44 sec

  13. 13

    Merge slight left onto Rosa Parks Highway

    1.5 mi · 2 min · Rosa Parks Highway

  14. 14

    Continue on Officer Thomas G. Smith, Jr. Memorial Highway

    1.8 mi · 2 min · Officer Thomas G. Smith, Jr. Memorial Highway

  15. 15

    Continue on Police Officer Steven Jarvis Memorial Highway

    126.7 mi · 2 hr 16 min · Police Officer Steven Jarvis Memorial Highway

  16. 16

    Take the exit slight right toward US 60 West: Dexter, Poplar Bluff

    2865 ft · 1 min

  17. 17

    Merge slight left

    22.6 mi · 26 min

  18. 18

    Take the exit slight right toward MO 25, US 60 Business: Dexter, Bloomfield

    1579 ft · 41 sec

  19. 19

    Turn left

    20.8 mi · 31 min

  20. 20

    Continue straight

    4.4 mi · 7 min

  21. 21

    Turn left

    1437 ft · 39 sec

  22. 22

    Continue straight

    661 ft · 18 sec

  23. 23

    Continue on North Main Street

    2800 ft · 1 min · North Main Street

  24. 24

    Turn left onto East Clark Street

    33 m · 5 sec · East Clark Street

  25. 25

    Arrive at your destination

    0 m · 1 sec · East Clark Street

Car Route Details

A richer read on the saved driving route between Saint Peters and Clarkton.

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
25 steps
4 turns on the saved route
Ramps & Exits
10
4 merges, 6 ramps or exits
Navigation Density
11.7 / 100 mi
Decision points by distance
Main Roads
Police Officer Steven Jarvis Memorial Highway
127 mi · 59%
US 60 West
23.1 mi · 11%
I 270 South
19.6 mi · 9%
I 70 East
12.1 mi · 6%
MO 25
4.79 mi · 2%
Rosa Parks Highway
1.51 mi · 1%
Longest Stretch

Police Officer Steven Jarvis Memorial Highway

Continue on Police Officer Steven Jarvis Memorial Highway

127 mi · 02h 16m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
04h 11m
Long day trip
Same-Day Return
08h 22m
Round-trip wheel time
Road vs Air
+47.5 mi
166.2 mi direct line
Halfway Stop
Longtown
02h 05m from Saint Peters
Leave By
8:38 AM CDT
Early departure recommended
Weather Watch

Mostly Sunny leaving Saint Peters and Sunny near Clarkton.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Saint Peters to Clarkton?

The road trip is about 213.7 miles (343.9 km) and usually takes 04h 11m 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?

Longtown is a useful midpoint, sitting about 106.9 miles from Saint Peters and 106.8 miles from Clarkton.

How much longer is the road route than the straight-line distance?

The direct path is about 166.2 miles (267.5 km), while the road route adds roughly 47.5 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 8:38 AM CDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $28.43 one way or $56.87 round trip. Estimated CO2 is about 67 kg one way.

What should you check before leaving?

Before you leave, expect Mostly Sunny around Saint Peters and Sunny near Clarkton.

Stop Ideas Near Longtown

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Longtown, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Longtown.

RAIL

Carbondale station

49 mi away
401 South Illinois St.
RAIL

Du Quoin

60 mi away
20 North Chestnut St.
BUS

Marion, IL

73 mi away
2100 West Main Street
BUS

Vienna, IL

82 mi away
504 West Vine Street

Flight Path Map

This map shows the direct air route between Saint Peters and Clarkton. Straight-line distance: 166.24 mi (267.53 km).

Saint Peters

#1 Saint Peters

The most populous city in St.

Population58,043
Coordinates38.8003300, -90.6265100
Altitude134
CountryUnited States
Clarkton

#2 Clarkton

City in Dunklin County, Missouri, United States

Population1,139
Coordinates36.4517300, -89.9670400
Altitude86
CountryUnited States
Start: Saint Peters (-90.62651, 38.80033)
End: Clarkton (-89.96704, 36.45173)

Estimated Travel Time

Distance: 344 km by road

SpeedTime
30 mph (48.3 km/h)07h 07m
40 mph (64.37 km/h)05h 20m
50 mph (80.47 km/h)04h 16m
60 mph (96.56 km/h)03h 33m
70 mph (112.65 km/h)03h 03m
80 mph (129 km/h)02h 39m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
7.54 gal
28.54 L · about $28.43
Round trip
$56.87
15.08 gal · 57.08 L
Estimated CO2
67 kg one way
Round trip: 134 kg / 295 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.77 $28.43 $56.87
Mid-grade $4.25 $32.07 $64.14
Premium $4.65 $35.09 $70.18
Diesel $5.30 $39.99 $79.98

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 23, 2026

There is no time difference between Saint Peters and Clarkton. The current time is 10:42:28.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.