How far is Rock Falls, IL from Elmhurst, IL?
The driving distance from Rock Falls, IL to Elmhurst, IL is about 103.3 miles (166.3 km), with a travel time of about 01h 40m by car.
- The straight-line flight distance is about 90.4 miles (145.5 km).
- For a round trip, plan for roughly 03h 21m 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 01h 40m.
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.
The county seat of DeKalb County, Illinois.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Rock Falls and Elmhurst.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rock Falls and Elmhurst.
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1
Start on Dixon Avenue
5 m · 1 sec · Dixon Avenue
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2
Turn left onto 1st Avenue
1 mi · 2 min · 1st Avenue
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3
Turn left onto East Rock Falls Road
2.9 mi · 4 min · East Rock Falls Road
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4
Take the ramp left
1563 ft · 39 sec
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5
Merge slight left onto Ronald Reagan Memorial Tollway
90.3 mi · 1 hr 40 min · Ronald Reagan Memorial Tollway
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6
Keep slight right to continue on Ronald Reagan Memorial Tollway
1.5 mi · 2 min · Ronald Reagan Memorial Tollway
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7
Take the exit slight right toward Midwest Road
1339 ft · 33 sec
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8
Turn right onto Midwest Road
2986 ft · 1 min · Midwest Road
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9
Turn right onto Butterfield Road
2.4 mi · 4 min · Butterfield Road
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10
Turn left onto South York Street
2.1 mi · 4 min · South York Street
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11
Turn left onto West Park Avenue
12 m · 3 sec · West Park Avenue
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12
Turn slight right
20 m · 5 sec
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13
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Rock Falls and Elmhurst.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Ronald Reagan Memorial Tollway
Merge slight left onto Ronald Reagan Memorial Tollway
90.3 mi · 01h 40m
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.
Showers And Thunderstorms Likely leaving Rock Falls and Showers And Thunderstorms near Elmhurst.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rock Falls to Elmhurst?
The road trip is about 103.3 miles (166.3 km) and usually takes 01h 40m 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?
DeKalb is a useful midpoint, sitting about 50.6 miles from Rock Falls and 52.7 miles from Elmhurst.
How much longer is the road route than the straight-line distance?
The direct path is about 90.4 miles (145.5 km), while the road route adds roughly 12.9 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 3:08 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $17.03 one way or $34.05 round trip. Estimated CO2 is about 32.4 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around Rock Falls and Showers And Thunderstorms near Elmhurst.
Stop Ideas Near DeKalb
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 DeKalb.
Plano
Rockford, Illinois
Mendota station
Naperville
Flight Path Map
This map shows the direct air route between Rock Falls and Elmhurst. Straight-line distance: 90.39 mi (145.47 km).
#1 Rock Falls
City in Illinois
| Population | 8,648 |
| Coordinates | 41.7797500, -89.6890000 |
| Altitude | 197 |
| Country | United States |
#2 Elmhurst
A city in DuPage County, Illinois.
| Population | 46,532 |
| Coordinates | 41.8994700, -87.9403400 |
| Altitude | 209 |
| Country | United States |
End: (-87.940349, 41.899457)
Estimated Travel Time
Distance: 166 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 26m |
| 40 mph (64.37 km/h) | 02h 34m |
| 50 mph (80.47 km/h) | 02h 03m |
| 60 mph (96.56 km/h) | 01h 43m |
| 70 mph (112.65 km/h) | 01h 28m |
| 80 mph (129 km/h) | 01h 17m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.67 | $17.03 | $34.05 |
| Mid-grade | $5.29 | $19.32 | $38.63 |
| Premium | $5.84 | $21.31 | $42.61 |
| Diesel | $6.57 | $23.98 | $47.97 |
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 · Oct 15, 2026