How far is Decatur, IL from River Forest, IL?
The driving distance from Decatur, IL to River Forest, IL is about 180.2 miles (290 km), with a travel time of about 03h 37m by car.
- The straight-line flight distance is about 154.2 miles (248.1 km).
- For a round trip, plan for roughly 07h 15m 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 37m.
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.
Township in Livingston 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 River Forest.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and River Forest.
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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
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3
Continue on North Water Street
27.4 mi · 37 min · North Water Street
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4
Continue on North 1450 East Road
14.7 mi · 18 min · North 1450 East Road
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5
Take the exit slight right toward I 74 West, US 51 North: Peoria, Rockford
122.1 mi · 2 hr 16 min
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6
Take the exit slight right toward I 294 Tollway North: Wisconsin
1.6 mi · 3 min
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7
Keep slight left to continue on I 294 North: Wisconsin
1694 ft · 41 sec
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8
Merge slight left onto Tri-State Tollway
4.8 mi · 6 min · Tri-State Tollway
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9
Keep slight left to continue on Tri-State Tollway
1.2 mi · 1 min · Tri-State Tollway
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10
Take the exit slight right toward I 290 West, I 294 North, I 290 East: Rockford, Milwaukee, Chicago
98 m · 8 sec · Tri-State Tollway
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11
Keep slight right to continue on I 290 East: Chicago
1369 ft · 34 sec
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12
Continue straight
160 m · 13 sec
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13
Merge slight left onto Ronald Reagan Memorial Tollway
3183 ft · 49 sec · Ronald Reagan Memorial Tollway
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14
Merge slight right onto Eisenhower Expressway
4.4 mi · 6 min · Eisenhower Expressway
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15
Take the exit slight right toward Des Plaines Avenue
1137 ft · 31 sec
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16
Turn left onto Des Plaines Avenue
2741 ft · 2 min · Des Plaines Avenue
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17
Turn left onto Madison Street
52 m · 6 sec · Madison Street
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18
Turn right onto Lathrop Avenue
1.3 mi · 4 min · Lathrop Avenue
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19
Turn right onto Augusta Street
97 m · 11 sec · Augusta Street
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20
Arrive at your destination
0 m · 1 sec · Augusta Street
Car Route Details
A richer read on the saved driving route between Decatur and River Forest.
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 74 West
Take the exit slight right toward I 74 West, US 51 North: Peoria, Rockford
122 mi · 02h 16m
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.
Sunny leaving Decatur and Mostly Sunny near River Forest.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to River Forest?
The road trip is about 180.2 miles (290 km) and usually takes 03h 37m 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?
Rooks Creek is a useful midpoint, sitting about 90.1 miles from Decatur and 90.1 miles from River Forest.
How much longer is the road route than the straight-line distance?
The direct path is about 154.2 miles (248.1 km), while the road route adds roughly 26 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 9:44 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $23.98 one way or $47.97 round trip. Estimated CO2 is about 56.5 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Decatur and Mostly Sunny near River Forest.
Stop Ideas Near Rooks Creek
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 Rooks Creek.
Pontiac station
Dwight station
Uptown Station
Gilman
Flight Path Map
This map shows the direct air route between Decatur and River Forest. Straight-line distance: 154.14 mi (248.07 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 River Forest
Village in Cook County, Illinois, United States
| Population | 10,694 |
| Coordinates | 41.8978100, -87.8139500 |
| Altitude | 192 |
| Country | United States |
End: River Forest (-87.81395, 41.89781)
Estimated Travel Time
Distance: 290 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 14m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $23.98 | $47.97 |
| Mid-grade | $4.25 | $27.05 | $54.10 |
| Premium | $4.65 | $29.60 | $59.20 |
| Diesel | $5.30 | $33.73 | $67.47 |
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.