How far is Naperville, IL from Guilford, IL?
The driving distance from Naperville, IL to Guilford, IL is about 151.1 miles (243.2 km), with a travel time of about 03h 18m by car.
- The straight-line flight distance is about 118.7 miles (191 km).
- For a round trip, plan for roughly 06h 36m 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 18m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Human settlement in Illinois, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Partly Sunny then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Naperville and Guilford.
Turn-by-Turn Driving Directions
Step-by-step road directions between Naperville and Guilford.
-
1
Start on North Washington Street
15 m · 5 sec · North Washington Street
-
2
Turn right onto West Ogden Avenue
1972 ft · 46 sec · West Ogden Avenue
-
3
Turn right onto Mill Street
1.1 mi · 2 min · Mill Street
-
4
Turn left onto West Diehl Road
1 km · 1 min · West Diehl Road
-
5
Turn right onto Winfield Road
2356 ft · 59 sec · Winfield Road
-
6
Take the ramp slight left toward I 88 West: Aurora
2051 ft · 50 sec
-
7
Merge slight left onto Ronald Reagan Memorial Tollway
11 mi · 13 min · Ronald Reagan Memorial Tollway
-
8
Keep slight left to continue on Ronald Reagan Memorial Tollway
34.8 mi · 37 min · Ronald Reagan Memorial Tollway
-
9
Take the exit slight right toward I 39 North, US 51 North: Rockford
1.1 km · 1 min
-
10
Merge slight left
21.1 mi · 23 min
-
11
Take the exit slight left toward US 20 West: Freeport, Rockford
1.1 mi · 2 min
-
12
Merge slight left onto U.S. Grant Memorial Highway
28.9 mi · 33 min · U.S. Grant Memorial Highway
-
13
Take the exit slight right toward US 20 BUS: Freeport
3.6 mi · 6 min
-
14
Turn slight right onto South Galena Avenue
7.3 mi · 13 min · South Galena Avenue
-
15
Turn left onto U.S. Grant Memorial Highway
14.5 mi · 20 min · U.S. Grant Memorial Highway
-
16
Continue on East North Avenue
2.1 mi · 4 min · East North Avenue
-
17
Continue on U.S. Grant Memorial Highway
6.4 mi · 9 min · U.S. Grant Memorial Highway
-
18
Continue on East Woodbine Street
2853 ft · 1 min · East Woodbine Street
-
19
Continue on U.S. Grant Memorial Highway
4.6 mi · 7 min · U.S. Grant Memorial Highway
-
20
Continue on South Main Street
2099 ft · 1 min · South Main Street
-
21
Turn straight onto Diagonal Street
639 ft · 21 sec · Diagonal Street
-
22
Continue on West Madison Street
1.2 km · 2 min · West Madison Street
-
23
Turn right onto South Elizabeth Scales Mound Road
8.1 mi · 14 min · South Elizabeth Scales Mound Road
-
24
Turn left onto West Rawlins Road
1.9 mi · 5 min · West Rawlins Road
-
25
Continue on West Guilford Road
2046 ft · 56 sec · West Guilford Road
-
26
Arrive at your destination
0 m · 1 sec · West Guilford Road
Car Route Details
A richer read on the saved driving route between Naperville and Guilford.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Ronald Reagan Memorial Tollway
Keep slight left to continue on Ronald Reagan Memorial Tollway
34.8 mi · 00h 37m
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.
Partly Sunny leaving Naperville and Partly Sunny then Chance Showers And Thunderstorms near Guilford.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Naperville to Guilford?
The road trip is about 151.1 miles (243.2 km) and usually takes 03h 18m 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?
New Milford is a useful midpoint, sitting about 75.4 miles from Naperville and 75.7 miles from Guilford.
How much longer is the road route than the straight-line distance?
The direct path is about 118.7 miles (191 km), while the road route adds roughly 32.4 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 10:24 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.10 one way or $40.20 round trip. Estimated CO2 is about 47.4 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Naperville and Partly Sunny then Chance Showers And Thunderstorms near Guilford.
Stop Ideas Near New Milford
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 New Milford.
Rockford, Illinois
South Beloit, Illinois
Janesville, Wisconsin
Mendota station
Flight Path Map
This map shows the direct air route between Naperville and Guilford. Straight-line distance: 118.69 mi (191.01 km).
#1 Naperville
The second most populous city in Illinois.
| Population | 147,986 |
| Coordinates | 41.7858600, -88.1472900 |
| Altitude | 216 |
| Country | United States |
#2 Guilford
Unincorporated community in Illinois, United States
| Population | 1,144 |
| Coordinates | 42.4175100, -90.3004100 |
| Altitude | 230 |
| Country | United States |
End: Guilford (-90.30041, 42.41751)
Estimated Travel Time
Distance: 243 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 02m |
| 40 mph (64.37 km/h) | 03h 46m |
| 50 mph (80.47 km/h) | 03h 01m |
| 60 mph (96.56 km/h) | 02h 31m |
| 70 mph (112.65 km/h) | 02h 09m |
| 80 mph (129 km/h) | 01h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $20.10 | $40.20 |
| Mid-grade | $4.25 | $22.67 | $45.34 |
| Premium | $4.65 | $24.81 | $49.61 |
| Diesel | $5.30 | $28.27 | $56.54 |
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 17, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.