How far is Rockford, IL from Posen, IL?
The driving distance from Rockford, IL to Posen, IL is about 325.8 miles (524.4 km), with a travel time of about 06h 14m by car.
- The straight-line flight distance is about 277.6 miles (446.7 km).
- For a round trip, plan for roughly 12h 29m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 06h 14m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
City in Illinois, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain
Driving Route Map
The map below follows the saved road route between Rockford and Posen.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rockford and Posen.
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1
Start on West State Street
546 ft · 23 sec · West State Street
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2
Turn left onto South Church Street
1519 ft · 37 sec · South Church Street
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3
Turn left onto Cedar Street
84 m · 5 sec · Cedar Street
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4
Turn right onto South Main Street
3.6 mi · 6 min · South Main Street
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5
Take the ramp left
1707 ft · 44 sec
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6
Merge slight left onto U.S. Grant Memorial Highway
4.3 mi · 5 min · U.S. Grant Memorial Highway
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7
Take the exit slight right
1.2 km · 2 min
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8
Merge slight right
118.2 mi · 2 hr 7 min
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9
Keep slight right to continue on I 55 South, US 51 South: Peoria, Champaign, Saint Louis, Decatur
7.6 mi · 8 min
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10
Keep slight right to continue on I 55 South: Saint Louis, Springfield
64.8 mi · 1 hr 10 min
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11
Keep slight left to continue on I 55 South: Saint Louis
59 mi · 1 hr 3 min
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12
Take the exit slight right toward IL 4: Staunton, Lebanon
1411 ft · 32 sec
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13
Turn left
26.6 mi · 39 min
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14
Turn left
1605 ft · 39 sec
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15
Merge slight left
26.6 mi · 29 min
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16
Take the exit slight right toward IL 127
1964 ft · 48 sec
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17
Turn right
9.7 mi · 11 min
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18
Turn left onto Posen Road
2.9 mi · 11 min · Posen Road
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19
Arrive at your destination
0 m · 1 sec · Posen Road
Car Route Details
A richer read on the saved driving route between Rockford and Posen.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
U.S. Grant Memorial Highway
Merge slight right
118 mi · 02h 07m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Chance Rain leaving Rockford and Sunny near Posen.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rockford to Posen?
The road trip is about 325.8 miles (524.4 km) and usually takes 06h 14m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Lincoln is a useful midpoint, sitting about 163 miles from Rockford and 162.8 miles from Posen.
How much longer is the road route than the straight-line distance?
The direct path is about 277.6 miles (446.7 km), while the road route adds roughly 48.2 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 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $43.37 one way or $86.73 round trip. Estimated CO2 is about 102.2 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain around Rockford and Sunny near Posen.
Stop Ideas Near Lincoln
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Route 66 Original Alignment- Driveable!
City of Lincoln
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Lincoln.
Lincoln
Springfield station
Uptown Station
Peoria, Illinois
Flight Path Map
This map shows the direct air route between Rockford and Posen. Straight-line distance: 277.55 mi (446.67 km).
#1 Rockford
The second most populous city in Illinois.
| Population | 144,835 |
| Coordinates | 42.2711300, -89.0940000 |
| Altitude | 218 |
| Country | United States |
#2 Posen
Village in United States of America
| Population | 5,794 |
| Coordinates | 38.2583800, -89.3356400 |
| Altitude | 149 |
| Country | United States |
End: Posen (-89.33564, 38.25838)
Estimated Travel Time
Distance: 524 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 51m |
| 40 mph (64.37 km/h) | 08h 08m |
| 50 mph (80.47 km/h) | 06h 30m |
| 60 mph (96.56 km/h) | 05h 25m |
| 70 mph (112.65 km/h) | 04h 39m |
| 80 mph (129 km/h) | 04h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $43.37 | $86.73 |
| Mid-grade | $4.25 | $48.91 | $97.82 |
| Premium | $4.65 | $53.52 | $107.04 |
| Diesel | $5.30 | $61.00 | $121.99 |
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.