How far is Wheaton, IL from Monmouth, IL?
The driving distance from Wheaton, IL to Monmouth, IL is about 190.9 miles (307.3 km), with a travel time of about 03h 35m by car.
- The straight-line flight distance is about 147.3 miles (237 km).
- For a round trip, plan for roughly 07h 10m 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 35m.
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 Whiteside County, Illinois, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Wheaton and Monmouth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Wheaton and Monmouth.
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1
Start on West Wesley Street
761 ft · 23 sec · West Wesley Street
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2
Turn left onto North Wheaton Avenue
142 m · 28 sec · North Wheaton Avenue
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3
Turn left onto West Front Street
897 ft · 31 sec · West Front Street
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4
Turn right onto South Main Street
2252 ft · 1 min · South Main Street
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5
Turn left onto East Roosevelt Road
906 ft · 26 sec · East Roosevelt Road
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6
Turn right onto South Naperville Road
3.6 mi · 7 min · South Naperville Road
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7
Turn right onto Warrenville Road
1427 ft · 29 sec · Warrenville Road
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8
Turn left onto Freedom Drive
156 m · 14 sec · Freedom Drive
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9
Take the ramp slight right toward I 88 Toll West: Aurora
3235 ft · 1 min
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10
Merge slight left onto Ronald Reagan Memorial Tollway
13 mi · 16 min · Ronald Reagan Memorial Tollway
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11
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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12
Continue on Ronald Reagan Memorial Highway
1.1 mi · 1 min · Ronald Reagan Memorial Highway
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13
Continue on Ronald Reagan Memorial Highway
37.8 mi · 40 min · Ronald Reagan Memorial Highway
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14
Continue on Chicago-Kansas City Expressway
5.4 mi · 6 min · Chicago-Kansas City Expressway
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15
Take the exit slight right toward I 80: Peoria
7.1 mi · 8 min
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16
Keep slight left to continue on Chicago-Kansas City Expressway
31.3 mi · 34 min · Chicago-Kansas City Expressway
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17
Take the exit slight right toward US 34 West: Monmouth
19.1 mi · 23 min
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18
Turn left onto North Main Street
1.5 km · 2 min · North Main Street
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19
Enter the roundabout and take exit 3 toward Public Square
94 m · 6 sec · East Broadway
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20
Exit the rotary onto East Broadway
90 m · 10 sec · East Broadway
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21
Turn right onto South 1st Street
65 m · 9 sec · South 1st Street
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22
Arrive at your destination
0 m · 1 sec · South 1st Street
Car Route Details
A richer read on the saved driving route between Wheaton and Monmouth.
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
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.
Rain Showers leaving Wheaton and Showers And Thunderstorms near Monmouth.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Wheaton to Monmouth?
The road trip is about 190.9 miles (307.3 km) and usually takes 03h 35m 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?
Sterling is a useful midpoint, sitting about 95.3 miles from Wheaton and 95.6 miles from Monmouth.
How much longer is the road route than the straight-line distance?
The direct path is about 147.3 miles (237 km), while the road route adds roughly 43.6 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 9:50 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $31.44 one way or $62.88 round trip. Estimated CO2 is about 59.9 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Wheaton and Showers And Thunderstorms near Monmouth.
Stop Ideas Near Sterling
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 Sterling.
Princeton
Mendota station
Kewanee
Moline, Illinois
Flight Path Map
This map shows the direct air route between Wheaton and Monmouth. Straight-line distance: 147.27 mi (237.01 km).
#1 Wheaton
The most populous city in DuPage County, Illinois.
| Population | 52,451 |
| Coordinates | 41.8661400, -88.1070100 |
| Altitude | 231 |
| Country | United States |
#2 Monmouth
City in Warren County, Illinois, United States
| Population | 8,801 |
| Coordinates | 40.9114300, -90.6473600 |
| Altitude | 232 |
| Country | United States |
End: Monmouth (-90.64736, 40.91143)
Estimated Travel Time
Distance: 307 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 21m |
| 40 mph (64.37 km/h) | 04h 46m |
| 50 mph (80.47 km/h) | 03h 49m |
| 60 mph (96.56 km/h) | 03h 10m |
| 70 mph (112.65 km/h) | 02h 43m |
| 80 mph (129 km/h) | 02h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.67 | $31.44 | $62.88 |
| Mid-grade | $5.29 | $35.67 | $71.34 |
| Premium | $5.84 | $39.34 | $78.68 |
| Diesel | $6.57 | $44.29 | $88.58 |
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 · Oct 15, 2026