How far is Elk Grove, IL from Rock Falls, IL?
The driving distance from Elk Grove, IL to Rock Falls, IL is about 110.4 miles (177.6 km), with a travel time of about 02h 11m by car.
- The straight-line flight distance is about 91.3 miles (146.9 km).
- For a round trip, plan for roughly 04h 22m 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 11m.
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 DeKalb County, Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy then Rain Likely
Chance Rain Showers then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Elk Grove and Rock Falls.
Turn-by-Turn Driving Directions
Step-by-step road directions between Elk Grove and Rock Falls.
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1
Start on South Elmhurst Road
1.5 km · 2 min · South Elmhurst Road
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2
Continue on York Road
4.3 mi · 8 min · York Road
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3
Continue on North York Street
1.3 mi · 2 min · North York Street
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4
Turn right onto Lake Street
1569 ft · 34 sec · Lake Street
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5
Turn slight right
45 m · 8 sec
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6
Take the ramp right toward I 290 East, US 20 East: Chicago
3 mi · 4 min
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7
Take the exit slight right toward I 88 West, I 294 South: Aurora, Indiana
1648 ft · 40 sec
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8
Continue on Tri-State Tollway
1937 ft · 47 sec · Tri-State Tollway
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9
Keep slight right to continue on I 88 West Toll: Aurora
2633 ft · 50 sec
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10
Merge slight left onto Ronald Reagan Memorial Tollway
1.2 km · 60 sec · Ronald Reagan Memorial Tollway
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11
Keep slight right to continue on Ronald Reagan Memorial Tollway
25.1 mi · 30 min · Ronald Reagan Memorial Tollway
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12
Keep slight left to continue on Ronald Reagan Memorial Tollway
69.5 mi · 1 hr 14 min · Ronald Reagan Memorial Tollway
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13
Take the exit slight right toward US 30: Aurora, Rock Falls
1996 ft · 49 sec
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14
Turn right onto East Rock Falls Road
2.6 mi · 4 min · East Rock Falls Road
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15
Turn right onto 1st Avenue
1.6 km · 1 min · 1st Avenue
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16
Turn right onto Dixon Avenue
65 m · 11 sec · Dixon Avenue
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17
Arrive at your destination
0 m · 1 sec · Dixon Avenue
Car Route Details
A richer read on the saved driving route between Elk Grove and Rock Falls.
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
Keep slight left to continue on Ronald Reagan Memorial Tollway
69.5 mi · 01h 14m
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 Cloudy then Rain Likely leaving Elk Grove and Chance Rain Showers then Slight Chance Showers And Thunderstorms near Rock Falls.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Elk Grove to Rock Falls?
The road trip is about 110.4 miles (177.6 km) and usually takes 02h 11m 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?
Cortland is a useful midpoint, sitting about 55.1 miles from Elk Grove and 55.3 miles from Rock Falls.
How much longer is the road route than the straight-line distance?
The direct path is about 91.3 miles (146.9 km), while the road route adds roughly 19.1 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 2:08 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $14.67 one way or $29.34 round trip. Estimated CO2 is about 34.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy then Rain Likely around Elk Grove and Chance Rain Showers then Slight Chance Showers And Thunderstorms near Rock Falls.
Stop Ideas Near Cortland
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 Cortland.
Plano
Rockford, Illinois
Naperville
Mendota station
Flight Path Map
This map shows the direct air route between Elk Grove and Rock Falls. Straight-line distance: 91.3 mi (146.93 km).
#1 Elk Grove
Township in Cook County, Illinois
| Population | 31,831 |
| Coordinates | 42.0072500, -87.9403400 |
| Altitude | 204 |
| Country | United States |
#2 Rock Falls
City in Illinois
| Population | 8,648 |
| Coordinates | 41.7797500, -89.6890000 |
| Altitude | 197 |
| Country | United States |
End: Rock Falls (-89.689, 41.77975)
Estimated Travel Time
Distance: 178 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 40m |
| 40 mph (64.37 km/h) | 02h 45m |
| 50 mph (80.47 km/h) | 02h 12m |
| 60 mph (96.56 km/h) | 01h 50m |
| 70 mph (112.65 km/h) | 01h 34m |
| 80 mph (129 km/h) | 01h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $14.67 | $29.34 |
| Mid-grade | $4.25 | $16.54 | $33.09 |
| Premium | $4.65 | $18.10 | $36.21 |
| Diesel | $5.30 | $20.63 | $41.27 |
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 · May 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.