How far is Decatur, IL from Campton, IL?
The driving distance from Decatur, IL to Campton, IL is about 164.4 miles (264.6 km), with a travel time of about 03h 36m by car.
- The straight-line flight distance is about 139.7 miles (224.9 km).
- For a round trip, plan for roughly 07h 13m 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 36m.
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 Illinois, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Decatur and Campton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Campton.
-
1
Start on East Wood Street
91 m · 16 sec · East Wood Street
-
2
Turn left onto South Main Street
1.3 mi · 2 min · South Main Street
-
3
Turn right onto West South Side Drive
1.5 km · 1 min · West South Side Drive
-
4
Turn left onto South Taylorville Road
12.9 mi · 15 min · South Taylorville Road
-
5
Continue on County Road 2080 E
18.4 mi · 23 min · County Road 2080 E
-
6
Continue on County Road 975 N
3056 ft · 52 sec · County Road 975 N
-
7
Continue on Sarpy Street
12.2 mi · 21 min · Sarpy Street
-
8
Continue on Front Street
7.6 mi · 11 min · Front Street
-
9
Turn left onto I 55 South: East Saint Louis
1822 ft · 44 sec
-
10
Merge slight left
48.2 mi · 52 min
-
11
Take the exit slight right toward IL 159 South: Collinsville
1434 ft · 48 sec
-
12
Continue on Vandalia Street
3 mi · 5 min · Vandalia Street
-
13
Continue on South Morrison Avenue
1.3 mi · 2 min · South Morrison Avenue
-
14
Continue on North Illinois Street
9.8 mi · 15 min · North Illinois Street
-
15
Enter the roundabout and take exit 2 toward Illinois Street
55 m · 5 sec · South Illinois Street
-
16
Exit the rotary onto South Illinois Street
8.3 mi · 13 min · South Illinois Street
-
17
Continue on State Route 159
6.1 mi · 9 min · State Route 159
-
18
Continue on North Main Street
1163 ft · 20 sec · North Main Street
-
19
Continue on N Main St
810 ft · 14 sec · N Main St
-
20
Continue on Main Street
8 mi · 12 min · Main Street
-
21
Continue straight
23.3 mi · 29 min
-
22
Turn left onto State Street
1.4 mi · 2 min · State Street
-
23
Turn right onto Welge Drive
535 ft · 24 sec · Welge Drive
-
24
Arrive at your destination
0 m · 1 sec · Welge Drive
Car Route Details
A richer read on the saved driving route between Decatur and Campton.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
I 55 South
Merge slight left
48.2 mi · 00h 52m
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 leaving Decatur and Showers And Thunderstorms near Campton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Campton?
The road trip is about 164.4 miles (264.6 km) and usually takes 03h 36m 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?
Williamson is a useful midpoint, sitting about 82.3 miles from Decatur and 82.1 miles from Campton.
How much longer is the road route than the straight-line distance?
The direct path is about 139.7 miles (224.9 km), while the road route adds roughly 24.7 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 9:46 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.87 one way or $43.74 round trip. Estimated CO2 is about 51.5 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Decatur and Showers And Thunderstorms near Campton.
Stop Ideas Near Williamson
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 Williamson.
Alton
Carlinville
Gateway Transportation Center
Kirkwood
Flight Path Map
This map shows the direct air route between Decatur and Campton. Straight-line distance: 139.74 mi (224.89 km).
#1 Decatur
The most populous city in Macon County, Illinois.
| Population | 70,007 |
| Coordinates | 39.8403100, -88.9548000 |
| Altitude | 205 |
| Country | United States |
#2 Campton
Township in Kane County, Illinois
| Population | 11,063 |
| Coordinates | 37.9283800, -89.8020500 |
| Altitude | 166 |
| Country | United States |
End: Campton (-89.80205, 37.92838)
Estimated Travel Time
Distance: 265 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 28m |
| 40 mph (64.37 km/h) | 04h 06m |
| 50 mph (80.47 km/h) | 03h 17m |
| 60 mph (96.56 km/h) | 02h 44m |
| 70 mph (112.65 km/h) | 02h 20m |
| 80 mph (129 km/h) | 02h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $21.87 | $43.74 |
| Mid-grade | $4.25 | $24.67 | $49.33 |
| Premium | $4.65 | $26.99 | $53.99 |
| Diesel | $5.30 | $30.76 | $61.53 |
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 Illinois · 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.