How far is Joliet, IL from Rock Falls, IL?
The driving distance from Joliet, IL to Rock Falls, IL is about 101.7 miles (163.7 km), with a travel time of about 02h 12m by car.
- The straight-line flight distance is about 84.8 miles (136.4 km).
- For a round trip, plan for roughly 04h 25m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CST.
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 12m.
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.
Cloudy then Slight Chance Rain Showers
Cloudy then Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Joliet and Rock Falls.
Turn-by-Turn Driving Directions
Step-by-step road directions between Joliet and Rock Falls.
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1
Start on the route
83 m · 22 sec
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2
At the end of the road, turn right onto Joliet Street
864 ft · 35 sec · Joliet Street
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3
Turn left onto Cass Street
667 ft · 19 sec · Cass Street
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4
Continue on Western Avenue
1227 ft · 40 sec · Western Avenue
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5
Turn right onto North Center Street
1400 ft · 40 sec · North Center Street
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6
Continue on Plainfield Road
5.2 mi · 11 min · Plainfield Road
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7
Continue on Joliet Road
2.5 mi · 5 min · Joliet Road
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8
Turn slight right onto North Division Street
1.2 mi · 3 min · North Division Street
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9
Turn left onto 143rd Street
1.6 km · 2 min · 143rd Street
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10
Turn right onto Lincoln Highway
7.5 mi · 11 min · Lincoln Highway
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11
Continue on Hill Avenue
2.4 mi · 4 min · Hill Avenue
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12
Continue on East Galena Boulevard
612 ft · 21 sec · East Galena Boulevard
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13
Turn right onto North Ohio Street
741 ft · 21 sec · North Ohio Street
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14
Turn left onto East New York Street
1.5 mi · 2 min · East New York Street
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15
Turn right onto North Lake Street
2.1 mi · 4 min · North Lake Street
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16
Continue on South Lincolnway Street
1885 ft · 39 sec · South Lincolnway Street
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17
Take the ramp left toward I 88 West Toll, IL 56 West Toll: Chicago, Dekalb-Iowa
118 m · 10 sec
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18
Keep slight left to continue on I 88 West, IL 56 West: DeKalb-Iowa
3054 ft · 1 min
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19
Merge slight left onto Ronald Reagan Memorial Tollway
2.8 mi · 3 min · Ronald Reagan Memorial Tollway
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20
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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21
Take the exit slight right toward US 30: Aurora, Rock Falls
1996 ft · 49 sec
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22
Turn right onto East Rock Falls Road
2.6 mi · 4 min · East Rock Falls Road
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23
Turn right onto 1st Avenue
1.6 km · 1 min · 1st Avenue
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24
Turn right onto Dixon Avenue
65 m · 11 sec · Dixon Avenue
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25
Arrive at your destination
0 m · 1 sec · Dixon Avenue
Car Route Details
A richer read on the saved driving route between Joliet 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.
Cloudy then Slight Chance Rain Showers leaving Joliet and Cloudy then Chance Rain Showers near Rock Falls.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Joliet to Rock Falls?
The road trip is about 101.7 miles (163.7 km) and usually takes 02h 12m 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 50.8 miles from Joliet and 51 miles from Rock Falls.
How much longer is the road route than the straight-line distance?
The direct path is about 84.8 miles (136.4 km), while the road route adds roughly 16.9 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 CST. If you want a more comfortable same-day return, try to leave by 2:04 PM CST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $17.01 one way or $34.03 round trip. Estimated CO2 is about 31.9 kg one way.
What should you check before leaving?
Before you leave, expect Cloudy then Slight Chance Rain Showers around Joliet and Cloudy then Chance Rain Showers near Rock Falls.
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 Joliet and Rock Falls. Straight-line distance: 84.74 mi (136.37 km).
#1 Joliet
The second most populous city in Will County, Illinois.
| Population | 85,583 |
| Coordinates | 41.5251900, -88.0834000 |
| Altitude | 165 |
| 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: 164 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 23m |
| 40 mph (64.37 km/h) | 02h 32m |
| 50 mph (80.47 km/h) | 02h 02m |
| 60 mph (96.56 km/h) | 01h 41m |
| 70 mph (112.65 km/h) | 01h 27m |
| 80 mph (129 km/h) | 01h 16m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.74 | $17.01 | $34.03 |
| Mid-grade | $5.36 | $19.25 | $38.51 |
| Premium | $5.92 | $21.25 | $42.49 |
| Diesel | $6.64 | $23.84 | $47.68 |
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 · Nov 01, 2026