How far is Naperville, IL from Petersburg, IL?
The driving distance from Naperville, IL to Petersburg, IL is about 270.8 miles (435.8 km), with a travel time of about 05h 10m by car.
- The straight-line flight distance is about 239.7 miles (385.7 km).
- For a round trip, plan for roughly 10h 20m 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 05h 10m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 Logan County, Illinois, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Naperville and Petersburg.
Turn-by-Turn Driving Directions
Step-by-step road directions between Naperville and Petersburg.
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1
Start on North Washington Street
5.3 mi · 12 min · North Washington Street
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2
Turn right onto Washington Street
2580 ft · 51 sec · Washington Street
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3
Continue on Weber Road
3.9 mi · 7 min · Weber Road
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4
Take the ramp slight right toward I 55 South: Bloomington
1902 ft · 49 sec
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5
Merge slight left
105.9 mi · 1 hr 55 min
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6
Keep slight right to continue on I 55 South: Saint Louis, Springfield
64.8 mi · 1 hr 10 min
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7
Keep slight left to continue on I 55 South: Saint Louis
77.9 mi · 1 hr 24 min
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8
Take the exit slight right toward IL 159 South: Collinsville
1434 ft · 48 sec
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9
Continue on Vandalia Street
3 mi · 5 min · Vandalia Street
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10
Continue on South Morrison Avenue
1.3 mi · 2 min · South Morrison Avenue
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11
Continue on North Illinois Street
3.9 mi · 6 min · North Illinois Street
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12
Take the ramp slight right toward I 64, US 50 East: Mount Vernon
1572 ft · 38 sec
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13
Merge slight left
1.7 mi · 2 min
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14
Take the exit slight right toward O'Fallon
1833 ft · 45 sec
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15
Keep slight left to continue on O'Fallon, Hartman Lane
66 m · 5 sec
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16
Keep slight left to continue on O'Fallon
81 m · 9 sec
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17
Turn left onto West Highway 50
1.2 km · 1 min · West Highway 50
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18
Turn left onto West State Street
1043 ft · 29 sec · West State Street
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19
Enter the roundabout and take exit 2 toward W State Street
21 m · 3 sec · W State Street
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20
Exit the roundabout onto W State Street
2142 ft · 1 min · W State Street
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21
Arrive at your destination
0 m · 1 sec · West State Street
Car Route Details
A richer read on the saved driving route between Naperville 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.
I 55 South
Merge slight left
106 mi · 01h 55m
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 Naperville and Sunny near Petersburg.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Naperville to Petersburg?
The road trip is about 270.8 miles (435.8 km) and usually takes 05h 10m 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?
Atlanta is a useful midpoint, sitting about 135.5 miles from Naperville and 135.3 miles from Petersburg.
How much longer is the road route than the straight-line distance?
The direct path is about 239.7 miles (385.7 km), while the road route adds roughly 31.1 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 6:40 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $36.05 one way or $72.10 round trip. Estimated CO2 is about 85 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Naperville and Sunny near Petersburg.
Stop Ideas Near Atlanta
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 Atlanta.
Lincoln
Uptown Station
Peoria, Illinois
Springfield station
Flight Path Map
This map shows the direct air route between Naperville and Petersburg. Straight-line distance: 239.68 mi (385.73 km).
#1 Naperville
The second most populous city in Illinois.
| Population | 147,986 |
| Coordinates | 41.7858600, -88.1472900 |
| Altitude | 216 |
| Country | United States |
#2 Petersburg
City in Menard County, Illinois
| Population | 2,207 |
| Coordinates | 38.5922700, -89.9212100 |
| Altitude | 167 |
| Country | United States |
End: Petersburg (-89.92121, 38.59227)
Estimated Travel Time
Distance: 436 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 01m |
| 40 mph (64.37 km/h) | 06h 46m |
| 50 mph (80.47 km/h) | 05h 24m |
| 60 mph (96.56 km/h) | 04h 30m |
| 70 mph (112.65 km/h) | 03h 52m |
| 80 mph (129 km/h) | 03h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $36.05 | $72.10 |
| Mid-grade | $4.25 | $40.66 | $81.32 |
| Premium | $4.65 | $44.49 | $88.98 |
| Diesel | $5.30 | $50.71 | $101.41 |
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.