How far is Decatur, IL from Mokena, IL?
The driving distance from Decatur, IL to Mokena, IL is about 152.2 miles (244.9 km), with a travel time of about 02h 57m by car.
- The straight-line flight distance is about 129.2 miles (207.9 km).
- For a round trip, plan for roughly 05h 54m 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 57m.
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.
Township in Iroquois County, Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Decatur and Mokena.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Mokena.
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1
Start on East Wood Street
155 m · 23 sec · East Wood Street
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2
Turn left onto South Franklin Street
2129 ft · 46 sec · South Franklin Street
-
3
Continue on North Water Street
4 mi · 6 min · North Water Street
-
4
Take the ramp slight right toward I 72 East: Champaign
2373 ft · 1 min
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5
Merge slight left
40.4 mi · 44 min
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6
Take the exit slight right toward I 57 North: Chicago
1520 ft · 43 sec
-
7
Merge slight left
83.2 mi · 1 hr 29 min
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8
Take the exit slight right toward Bourbonnais Parkway
2050 ft · 42 sec
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9
Turn left onto Bourbonnais Parkway
3273 ft · 1 min · Bourbonnais Parkway
-
10
Turn right
18.2 mi · 26 min
-
11
Turn left onto West Steger Road
1196 ft · 55 sec · West Steger Road
-
12
Turn right onto Wolf Road
3.9 mi · 7 min · Wolf Road
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13
Arrive at your destination
0 m · 1 sec · Wolf Road
Car Route Details
A richer read on the saved driving route between Decatur and Mokena.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 57 North
Merge slight left
83.2 mi · 01h 29m
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 Decatur and Mostly Sunny near Mokena.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Mokena?
The road trip is about 152.2 miles (244.9 km) and usually takes 02h 57m 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?
Loda is a useful midpoint, sitting about 76.1 miles from Decatur and 76.1 miles from Mokena.
How much longer is the road route than the straight-line distance?
The direct path is about 129.2 miles (207.9 km), while the road route adds roughly 23 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 12:36 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.25 one way or $40.50 round trip. Estimated CO2 is about 47.7 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Decatur and Mostly Sunny near Mokena.
Stop Ideas Near Loda
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 Loda.
Rantoul
Gilman
Illinois Terminal
Danville, Illinois
Flight Path Map
This map shows the direct air route between Decatur and Mokena. Straight-line distance: 129.16 mi (207.87 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 Mokena
City in Illinois, United States of America
| Population | 20,050 |
| Coordinates | 41.5261400, -87.8892200 |
| Altitude | 215 |
| Country | United States |
End: Mokena (-87.88922, 41.52614)
Estimated Travel Time
Distance: 245 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 04m |
| 40 mph (64.37 km/h) | 03h 48m |
| 50 mph (80.47 km/h) | 03h 02m |
| 60 mph (96.56 km/h) | 02h 32m |
| 70 mph (112.65 km/h) | 02h 10m |
| 80 mph (129 km/h) | 01h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $20.25 | $40.50 |
| Mid-grade | $4.25 | $22.84 | $45.68 |
| Premium | $4.65 | $24.99 | $49.98 |
| Diesel | $5.30 | $28.48 | $56.96 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.