How far is Lanark, IL from Naperville, IL?
The driving distance from Lanark, IL to Naperville, IL is about 102.7 miles (165.2 km), with a travel time of about 01h 49m by car.
- The straight-line flight distance is about 89.4 miles (143.8 km).
- For a round trip, plan for roughly 03h 39m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 49m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Lanark and Naperville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lanark and Naperville.
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1
Start on the route
21 m · 10 sec
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2
Turn left onto West Locust Street
53 m · 10 sec · West Locust Street
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3
Turn right onto South Broad Street
2318 ft · 44 sec · South Broad Street
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4
Turn left onto Chambers Road
6.5 mi · 10 min · Chambers Road
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5
Continue on Chambers Road
10.6 mi · 16 min · Chambers Road
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6
Continue straight
5.6 mi · 8 min
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7
Continue on South Il Route 26
107 m · 6 sec · South Il Route 26
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8
Continue straight
9.3 mi · 15 min
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9
Turn left
1065 ft · 26 sec
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10
Keep slight left
1.1 km · 1 min
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11
Merge slight left onto Ronald Reagan Memorial Tollway
70.4 mi · 1 hr 17 min · Ronald Reagan Memorial Tollway
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12
Take the exit slight right toward Winfield Road
2012 ft · 49 sec
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13
Turn right onto Winfield Road
936 ft · 26 sec · Winfield Road
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14
Turn left onto West Diehl Road
1.1 km · 1 min · West Diehl Road
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15
Turn right onto Mill Street
1.1 mi · 2 min · Mill Street
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16
Turn left onto West Ogden Avenue
1972 ft · 49 sec · West Ogden Avenue
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17
Turn left onto North Washington Street
15 m · 1 sec · North Washington Street
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18
Arrive at your destination
0 m · 1 sec · North Washington Street
Car Route Details
A richer read on the saved driving route between Lanark and Naperville.
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
Merge slight left onto Ronald Reagan Memorial Tollway
70.4 mi · 01h 17m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely leaving Lanark 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 Lanark to Naperville?
The road trip is about 102.7 miles (165.2 km) and usually takes 01h 49m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Flagg is a useful midpoint, sitting about 53.2 miles from Lanark and 49.4 miles from Naperville.
How much longer is the road route than the straight-line distance?
The direct path is about 89.4 miles (143.8 km), while the road route adds roughly 13.3 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 2:50 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.65 one way or $27.30 round trip. Estimated CO2 is about 32.2 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms then Showers And Thunderstorms Likely around Lanark and Showers And Thunderstorms near Naperville.
Stop Ideas Near Flagg
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 Flagg.
Mendota station
Rockford, Illinois
Plano
Princeton
Flight Path Map
This map shows the direct air route between Lanark and Naperville. Straight-line distance: 89.37 mi (143.82 km).
#1 Lanark
City in Illinois, United States
| Population | 1,321 |
| Coordinates | 42.1022500, -89.8334500 |
| Altitude | 268 |
| 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: 165 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 25m |
| 40 mph (64.37 km/h) | 02h 33m |
| 50 mph (80.47 km/h) | 02h 03m |
| 60 mph (96.56 km/h) | 01h 42m |
| 70 mph (112.65 km/h) | 01h 27m |
| 80 mph (129 km/h) | 01h 16m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $13.65 | $27.30 |
| Mid-grade | $4.25 | $15.40 | $30.79 |
| Premium | $4.65 | $16.85 | $33.69 |
| Diesel | $5.30 | $19.20 | $38.40 |
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 15, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.