How far is Prophetstown, IL from Rock Falls, IL?
The driving distance from Prophetstown, IL to Rock Falls, IL is about 19.5 miles (31.4 km), with a travel time of about 00h 26m by car.
- The straight-line flight distance is about 14.8 miles (23.8 km).
- For a round trip, plan for roughly 00h 52m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 26m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
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.
Patchy Fog then Mostly Cloudy
Patchy Fog then Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Prophetstown and Rock Falls.
Turn-by-Turn Driving Directions
Step-by-step road directions between Prophetstown and Rock Falls.
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1
Start on Washington Street
89 m · 11 sec · Washington Street
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2
Turn left onto West 2nd Street
1321 ft · 26 sec · West 2nd Street
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3
Continue on Johnson Drive
767 ft · 15 sec · Johnson Drive
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4
Continue on Bishop Road
2.6 mi · 4 min · Bishop Road
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5
At the end of the road, turn right onto West Commercial Street
1.4 mi · 2 min · West Commercial Street
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6
Continue on Moline Road
8.1 mi · 12 min · Moline Road
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7
Continue straight
4.8 mi · 8 min
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8
Turn left onto 1st Avenue
1.6 km · 1 min · 1st Avenue
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9
Turn right onto Dixon Avenue
65 m · 11 sec · Dixon Avenue
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10
Arrive at your destination
0 m · 1 sec · Dixon Avenue
Car Route Details
A richer read on the saved driving route between Prophetstown and Rock Falls.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Moline Road
Continue on Moline Road
8.09 mi · 00h 12m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Patchy Fog then Mostly Cloudy leaving Prophetstown and Patchy Fog then Mostly Cloudy near Rock Falls.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Prophetstown to Rock Falls?
The road trip is about 19.5 miles (31.4 km) and usually takes 00h 26m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Round Grove is a useful midpoint, sitting about 9.1 miles from Prophetstown and 10.4 miles from Rock Falls.
How much longer is the road route than the straight-line distance?
The direct path is about 14.8 miles (23.8 km), while the road route adds roughly 4.7 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 7:00 AM to 7:00 PM CDT. If you want a more comfortable same-day return, try to leave by 7:38 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.19 one way or $6.38 round trip. Estimated CO2 is about 6.1 kg one way.
What should you check before leaving?
Before you leave, expect Patchy Fog then Mostly Cloudy around Prophetstown and Patchy Fog then Mostly Cloudy near Rock Falls.
Stop Ideas Near Round Grove
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 Round Grove.
Princeton
Kewanee
Moline, Illinois
Rock Island, IL
Flight Path Map
This map shows the direct air route between Prophetstown and Rock Falls. Straight-line distance: 14.78 mi (23.79 km).
#1 Prophetstown
City in Whiteside County, Illinois, United States
| Population | 1,919 |
| Coordinates | 41.6714200, -89.9362200 |
| Altitude | 189 |
| Country | United States |
#2 Rock Falls
City in Illinois
| Population | 8,648 |
| Coordinates | 41.7797500, -89.6890000 |
| Altitude | 197 |
| Country | United States |
End: Dixon Avenue (-89.689001, 41.779817)
Estimated Travel Time
Distance: 31 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 39m |
| 40 mph (64.37 km/h) | 00h 29m |
| 50 mph (80.47 km/h) | 00h 23m |
| 60 mph (96.56 km/h) | 00h 19m |
| 70 mph (112.65 km/h) | 00h 16m |
| 80 mph (129 km/h) | 00h 14m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.63 | $3.19 | $6.38 |
| Mid-grade | $5.20 | $3.59 | $7.18 |
| Premium | $5.73 | $3.95 | $7.91 |
| Diesel | $6.26 | $4.32 | $8.64 |
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 · Sep 17, 2026