How far is Rockford, IL from Petersburg, IL?
The driving distance from Rockford, IL to Petersburg, IL is about 201.3 miles (324 km), with a travel time of about 03h 50m by car.
- The straight-line flight distance is about 160.9 miles (259 km).
- For a round trip, plan for roughly 07h 40m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 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 03h 50m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Woodford County, Illinois, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Rockford and Petersburg.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rockford and Petersburg.
-
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
-
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
-
10
Keep slight right to continue on I 55 South: Saint Louis, Springfield
47.8 mi · 51 min
-
11
Take the exit slight right toward IL 123: Williamsville
1678 ft · 41 sec
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12
Keep slight right
112 m · 11 sec
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13
Turn straight onto County Highway 2
644 ft · 12 sec · County Highway 2
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14
Continue on Dinius Road
2.9 mi · 4 min · Dinius Road
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15
Continue on County Road 11 North
3.6 mi · 6 min · County Road 11 North
-
16
Turn right
1.5 mi · 2 min
-
17
Turn left onto Springfield Road
1810 ft · 1 min · Springfield Road
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18
Continue on East Hargrave Street
2666 ft · 2 min · East Hargrave Street
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19
At the end of the road, turn right onto North Main Street
1186 ft · 42 sec · North Main Street
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20
Turn left onto Salem Road
91 m · 9 sec · Salem Road
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21
Continue on Athens Blacktop Road
6.6 mi · 10 min · Athens Blacktop Road
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22
Turn right
2.2 mi · 4 min
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23
Arrive at your destination
0 m · 1 sec · South 6th Street
Car Route Details
A richer read on the saved driving route between Rockford and Petersburg.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
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.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Mostly Sunny leaving Rockford and Sunny near Petersburg.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rockford to Petersburg?
The road trip is about 201.3 miles (324 km) and usually takes 03h 50m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Minonk is a useful midpoint, sitting about 100.7 miles from Rockford and 100.6 miles from Petersburg.
How much longer is the road route than the straight-line distance?
The direct path is about 160.9 miles (259 km), while the road route adds roughly 40.4 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 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 9:20 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $26.77 one way or $53.55 round trip. Estimated CO2 is about 63.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Rockford and Sunny near Petersburg.
Stop Ideas Near Minonk
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 Minonk.
Pontiac station
Uptown Station
Dwight station
Peoria, Illinois
Flight Path Map
This map shows the direct air route between Rockford and Petersburg. Straight-line distance: 160.97 mi (259.05 km).
#1 Rockford
The second most populous city in Illinois.
| Population | 144,835 |
| Coordinates | 42.2711300, -89.0940000 |
| Altitude | 218 |
| Country | United States |
#2 Petersburg
City in Menard County, Illinois
| Population | 2,190 |
| Coordinates | 40.0117200, -89.8481700 |
| Altitude | 156 |
| Country | United States |
End: Petersburg (-89.84817, 40.01172)
Estimated Travel Time
Distance: 324 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 42m |
| 40 mph (64.37 km/h) | 05h 02m |
| 50 mph (80.47 km/h) | 04h 01m |
| 60 mph (96.56 km/h) | 03h 21m |
| 70 mph (112.65 km/h) | 02h 52m |
| 80 mph (129 km/h) | 02h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $26.77 | $53.55 |
| Mid-grade | $4.25 | $30.20 | $60.39 |
| Premium | $4.65 | $33.04 | $66.09 |
| Diesel | $5.30 | $37.66 | $75.32 |
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 · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.