How far is La Harpe, IL from Naperville, IL?
The driving distance from La Harpe, IL to Naperville, IL is about 228.3 miles (367.4 km), with a travel time of about 03h 36m by car.
- The straight-line flight distance is about 168.6 miles (271.4 km).
- For a round trip, plan for roughly 07h 12m 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 36m.
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.
Village in Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between La Harpe and Naperville.
Turn-by-Turn Driving Directions
Step-by-step road directions between La Harpe and Naperville.
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1
Start on East Main Street
1.2 km · 1 min · East Main Street
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2
Continue on Highway 9
14.5 mi · 22 min · Highway 9
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3
Turn left onto East 1100th Street
1.3 mi · 2 min · East 1100th Street
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4
Turn right onto North 1975th Road
1 mi · 1 min · North 1975th Road
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5
Turn left onto Chicago-Kansas City Expressway
44.8 mi · 52 min · Chicago-Kansas City Expressway
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6
Keep slight right to continue on Chicago-Kansas City Expressway
31.9 mi · 35 min · Chicago-Kansas City Expressway
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7
Keep slight left to continue on Chicago-Kansas City Expressway
6.3 mi · 7 min · Chicago-Kansas City Expressway
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8
Take the exit slight right toward I 88 East, IL 92 East: Sterling, Rock Falls
125 mi · 2 hr 16 min
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9
Take the exit slight right toward Winfield Road
2012 ft · 49 sec
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10
Turn right onto Winfield Road
936 ft · 26 sec · Winfield Road
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11
Turn left onto West Diehl Road
1.1 km · 1 min · West Diehl Road
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12
Turn right onto Mill Street
1.1 mi · 2 min · Mill Street
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13
Turn left onto West Ogden Avenue
1972 ft · 49 sec · West Ogden Avenue
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14
Turn left onto North Washington Street
15 m · 1 sec · North Washington Street
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15
Arrive at your destination
0 m · 1 sec · North Washington Street
Car Route Details
A richer read on the saved driving route between La Harpe and Naperville.
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 88 East
Take the exit slight right toward I 88 East, IL 92 East: Sterling, Rock Falls
125 mi · 02h 16m
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.
Rain Showers Likely leaving La Harpe and Showers And Thunderstorms near Naperville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from La Harpe to Naperville?
The road trip is about 228.3 miles (367.4 km) and usually takes 03h 36m 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?
Hillsdale is a useful midpoint, sitting about 114 miles from La Harpe and 114.3 miles from Naperville.
How much longer is the road route than the straight-line distance?
The direct path is about 168.6 miles (271.4 km), while the road route adds roughly 59.7 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 9:48 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $30.36 one way or $60.71 round trip. Estimated CO2 is about 71.5 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around La Harpe and Showers And Thunderstorms near Naperville.
Stop Ideas Near Hillsdale
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 Hillsdale.
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Kewanee
Flight Path Map
This map shows the direct air route between La Harpe and Naperville. Straight-line distance: 168.62 mi (271.36 km).
#1 La Harpe
City in Hancock County, Illinois, United States
| Population | 1,123 |
| Coordinates | 40.5833700, -90.9693100 |
| Altitude | 213 |
| Country | United States |
#2 Naperville
The second most populous city in Illinois.
| Population | 147,986 |
| Coordinates | 41.7858600, -88.1472900 |
| Altitude | 216 |
| Country | United States |
End: North Washington Street (-88.147302, 41.785837)
Estimated Travel Time
Distance: 367 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 36m |
| 40 mph (64.37 km/h) | 05h 42m |
| 50 mph (80.47 km/h) | 04h 33m |
| 60 mph (96.56 km/h) | 03h 48m |
| 70 mph (112.65 km/h) | 03h 15m |
| 80 mph (129 km/h) | 02h 50m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $30.36 | $60.71 |
| Mid-grade | $4.25 | $34.24 | $68.47 |
| Premium | $4.65 | $37.46 | $74.93 |
| Diesel | $5.30 | $42.70 | $85.39 |
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 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.