How far is Naperville, IL from Knox, IL?
The driving distance from Naperville, IL to Knox, IL is about 176.6 miles (284.2 km), with a travel time of about 03h 19m by car.
- The straight-line flight distance is about 124.1 miles (199.8 km).
- For a round trip, plan for roughly 06h 39m 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 19m.
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 Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Naperville and Knox.
Turn-by-Turn Driving Directions
Step-by-step road directions between Naperville and Knox.
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1
Start on North Washington Street
15 m · 5 sec · North Washington Street
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2
Turn right onto West Ogden Avenue
1972 ft · 46 sec · West Ogden Avenue
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3
Turn right onto Mill Street
1.1 mi · 2 min · Mill Street
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4
Turn left onto West Diehl Road
1 km · 1 min · West Diehl Road
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5
Turn right onto Winfield Road
2356 ft · 59 sec · Winfield Road
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6
Take the ramp slight left toward I 88 West: Aurora
2051 ft · 50 sec
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7
Merge slight left onto Ronald Reagan Memorial Tollway
11 mi · 13 min · Ronald Reagan Memorial Tollway
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8
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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9
Continue on Ronald Reagan Memorial Highway
1.1 mi · 1 min · Ronald Reagan Memorial Highway
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10
Continue on Ronald Reagan Memorial Highway
37.8 mi · 40 min · Ronald Reagan Memorial Highway
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11
Continue on Chicago-Kansas City Expressway
5.4 mi · 6 min · Chicago-Kansas City Expressway
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12
Take the exit slight right toward I 80: Peoria
7.1 mi · 8 min
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13
Keep slight left to continue on Chicago-Kansas City Expressway
39.4 mi · 42 min · Chicago-Kansas City Expressway
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14
Take the exit slight right toward US 150, IL 97: Lewistown
1112 ft · 27 sec
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15
Keep slight left to continue on US 150 East: Brimfield
32 m · 3 sec
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16
Turn straight onto US 150 / IL 97
1302 ft · 20 sec · US 150 / IL 97
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17
Continue on Knox Road 1020 East
1.4 mi · 5 min · Knox Road 1020 East
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18
Turn left onto Mine Road
2682 ft · 2 min · Mine Road
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19
Turn right onto Knox Station Road
45 m · 7 sec · Knox Station Road
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20
Arrive at your destination
0 m · 1 sec · Knox Station Road
Car Route Details
A richer read on the saved driving route between Naperville and Knox.
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 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.
Sunny leaving Naperville and Sunny near Knox.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Naperville to Knox?
The road trip is about 176.6 miles (284.2 km) and usually takes 03h 19m 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?
Rock Falls is a useful midpoint, sitting about 88.2 miles from Naperville and 88.4 miles from Knox.
How much longer is the road route than the straight-line distance?
The direct path is about 124.1 miles (199.8 km), while the road route adds roughly 52.5 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 10:20 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $23.49 one way or $46.99 round trip. Estimated CO2 is about 55.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Naperville and Sunny near Knox.
Stop Ideas Near Rock Falls
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 Rock Falls.
Princeton
Mendota station
Kewanee
Moline, Illinois
Flight Path Map
This map shows the direct air route between Naperville and Knox. Straight-line distance: 124.13 mi (199.76 km).
#1 Naperville
The second most populous city in Illinois.
| Population | 147,986 |
| Coordinates | 41.7858600, -88.1472900 |
| Altitude | 216 |
| Country | United States |
#2 Knox
County seat of Knox County, Tennessee, United States; third-largest city in Tennessee
| Population | 2,692 |
| Coordinates | 40.9342000, -90.2548500 |
| Altitude | 201 |
| Country | United States |
End: Knox (-90.25485, 40.9342)
Estimated Travel Time
Distance: 284 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 53m |
| 40 mph (64.37 km/h) | 04h 24m |
| 50 mph (80.47 km/h) | 03h 31m |
| 60 mph (96.56 km/h) | 02h 56m |
| 70 mph (112.65 km/h) | 02h 31m |
| 80 mph (129 km/h) | 02h 12m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $23.49 | $46.99 |
| Mid-grade | $4.25 | $26.50 | $52.99 |
| Premium | $4.65 | $28.99 | $57.99 |
| Diesel | $5.30 | $33.04 | $66.09 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.