How far is Mokena, IL from Decatur, IL?
The driving distance from Mokena, IL to Decatur, IL is about 152.7 miles (245.8 km), with a travel time of about 02h 35m by car.
- The straight-line flight distance is about 129.2 miles (207.9 km).
- For a round trip, plan for roughly 05h 11m 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 35m.
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
Sunny
Driving Route Map
The map below follows the saved road route between Mokena and Decatur.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mokena and Decatur.
-
1
Start on Wolf Road
3.9 mi · 7 min · Wolf Road
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2
At the end of the road, turn left onto West Steger Road
1196 ft · 59 sec · West Steger Road
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3
Turn right onto South La Grange Road
18.2 mi · 26 min · South La Grange Road
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4
Turn left onto Bourbonnais Parkway
2017 ft · 40 sec · Bourbonnais Parkway
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5
Take the ramp slight right toward I-57 South: Kankakee
2192 ft · 54 sec
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6
Merge slight left
82.9 mi · 1 hr 29 min
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7
Take the exit slight right toward I 72 West: Decatur
2596 ft · 1 min
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8
Merge slight left
36.6 mi · 39 min
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9
Take the exit slight right toward IL 48: Oreana, Decatur
2140 ft · 39 sec
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10
Turn left
5.1 mi · 8 min
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11
Turn right onto East Eldorado Street
1163 ft · 29 sec · East Eldorado Street
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12
Continue straight
1.4 mi · 2 min
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13
Turn left onto North Main Street
1985 ft · 49 sec · North Main Street
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14
Turn left onto East Wood Street
91 m · 8 sec · East Wood Street
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15
Arrive at your destination
0 m · 1 sec · East Wood Street
Car Route Details
A richer read on the saved driving route between Mokena and Decatur.
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 South
Merge slight left
82.9 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.
Mostly Sunny leaving Mokena and Sunny near Decatur.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mokena to Decatur?
The road trip is about 152.7 miles (245.8 km) and usually takes 02h 35m 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 75.3 miles from Mokena and 77.4 miles from Decatur.
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 23.5 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 1:18 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.33 one way or $40.65 round trip. Estimated CO2 is about 47.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Mokena and Sunny near Decatur.
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 Mokena and Decatur. Straight-line distance: 129.16 mi (207.87 km).
#1 Mokena
City in Illinois, United States of America
| Population | 20,050 |
| Coordinates | 41.5261400, -87.8892200 |
| Altitude | 215 |
| Country | United States |
#2 Decatur
The most populous city in Macon County, Illinois.
| Population | 70,007 |
| Coordinates | 39.8403100, -88.9548000 |
| Altitude | 205 |
| Country | United States |
End: East Wood Street (-88.954801, 39.840341)
Estimated Travel Time
Distance: 246 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 05m |
| 40 mph (64.37 km/h) | 03h 49m |
| 50 mph (80.47 km/h) | 03h 03m |
| 60 mph (96.56 km/h) | 02h 32m |
| 70 mph (112.65 km/h) | 02h 10m |
| 80 mph (129 km/h) | 01h 54m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $20.33 | $40.65 |
| Mid-grade | $4.25 | $22.92 | $45.85 |
| Premium | $4.65 | $25.09 | $50.17 |
| Diesel | $5.30 | $28.59 | $57.18 |
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.