How far is Naperville, IL from La Harpe, IL?
The driving distance from Naperville, IL to La Harpe, IL is about 228.6 miles (367.9 km), with a travel time of about 04h 22m by car.
- The straight-line flight distance is about 168.6 miles (271.4 km).
- For a round trip, plan for roughly 08h 44m 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 04h 22m.
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.
Showers And Thunderstorms
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Naperville and La Harpe.
Turn-by-Turn Driving Directions
Step-by-step road directions between Naperville and La Harpe.
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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
31.3 mi · 34 min · Chicago-Kansas City Expressway
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14
Take the exit slight right toward US 34 West: Monmouth
44.9 mi · 53 min
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15
Turn right onto North 1975th Road
1 mi · 1 min · North 1975th Road
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16
Turn left onto East 1100th Street
1.3 mi · 2 min · East 1100th Street
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17
Turn right
15.2 mi · 24 min
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18
Arrive at your destination
0 m · 1 sec · East Main Street
Car Route Details
A richer read on the saved driving route between Naperville and La Harpe.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
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.
Showers And Thunderstorms leaving Naperville and Rain Showers Likely near La Harpe.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Naperville to La Harpe?
The road trip is about 228.6 miles (367.9 km) and usually takes 04h 22m 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 114.1 miles from Naperville and 114.4 miles from La Harpe.
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 60 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 8:16 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $30.43 one way or $60.86 round trip. Estimated CO2 is about 71.7 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Naperville and Rain Showers Likely near La Harpe.
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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Flight Path Map
This map shows the direct air route between Naperville and La Harpe. Straight-line distance: 168.62 mi (271.36 km).
#1 Naperville
The second most populous city in Illinois.
| Population | 147,986 |
| Coordinates | 41.7858600, -88.1472900 |
| Altitude | 216 |
| Country | United States |
#2 La Harpe
City in Hancock County, Illinois, United States
| Population | 1,123 |
| Coordinates | 40.5833700, -90.9693100 |
| Altitude | 213 |
| Country | United States |
End: La Harpe (-90.96931, 40.58337)
Estimated Travel Time
Distance: 368 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 34m |
| 60 mph (96.56 km/h) | 03h 48m |
| 70 mph (112.65 km/h) | 03h 15m |
| 80 mph (129 km/h) | 02h 51m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $30.43 | $60.86 |
| Mid-grade | $4.25 | $34.32 | $68.64 |
| Premium | $4.65 | $37.56 | $75.12 |
| Diesel | $5.30 | $42.80 | $85.61 |
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.