How far is West Allis, WI from Monroe, WI?
The driving distance from West Allis, WI to Monroe, WI is about 103 miles (165.8 km), with a travel time of about 02h 13m by car.
- The straight-line flight distance is about 87.6 miles (140.9 km).
- For a round trip, plan for roughly 04h 26m 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 02h 13m.
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.
Civil town in Walworth County, Wisconsin
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between West Allis and Monroe.
Turn-by-Turn Driving Directions
Step-by-step road directions between West Allis and Monroe.
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1
Start on West Greenfield Avenue
1.5 mi · 4 min · West Greenfield Avenue
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2
Turn left onto I 41 South, I 894 East, US 45 South
1706 ft · 44 sec
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3
Merge slight left onto Zoo Freeway
3.2 mi · 4 min · Zoo Freeway
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4
Take the exit slight right toward I 43 South, US 45 South: Beloit
58.5 mi · 1 hr 3 min
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5
Take the exit slight right toward CTH X: Hart Road
1757 ft · 43 sec
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6
Keep slight right
82 m · 7 sec
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7
Turn straight onto East Hart Road
2.2 mi · 4 min · East Hart Road
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8
At the end of the road, turn left onto Shopiere Road
2.2 mi · 4 min · Shopiere Road
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9
Continue on Henry Avenue
1.2 mi · 3 min · Henry Avenue
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10
Continue on Maple Avenue
1265 ft · 40 sec · Maple Avenue
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11
At the end of the road, turn left onto 6th Street
2937 ft · 1 min · 6th Street
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12
Turn right onto East Liberty Avenue
4.6 mi · 7 min · East Liberty Avenue
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13
Continue on State Highway 81
15.3 mi · 21 min · State Highway 81
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14
Turn left onto State Highway 11
10.4 mi · 14 min · State Highway 11
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15
Turn left onto County Highway KK
1.4 mi · 2 min · County Highway KK
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16
Continue on 13th Street
1.1 km · 1 min · 13th Street
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17
At the end of the road, turn right onto 20th Avenue
86 m · 15 sec · 20th Avenue
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18
Turn left onto 12th Street
939 ft · 43 sec · 12th Street
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19
Turn right onto 17th Avenue
104 m · 17 sec · 17th Avenue
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20
Turn right onto 11th Street
9 m · 1 sec · 11th Street
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21
Arrive at your destination
0 m · 1 sec · 11th Street
Car Route Details
A richer read on the saved driving route between West Allis and Monroe.
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 43 South
Take the exit slight right toward I 43 South, US 45 South: Beloit
58.5 mi · 01h 03m
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.
Showers And Thunderstorms Likely leaving West Allis and Showers And Thunderstorms Likely near Monroe.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from West Allis to Monroe?
The road trip is about 103 miles (165.8 km) and usually takes 02h 13m 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?
Darien is a useful midpoint, sitting about 51.4 miles from West Allis and 51.6 miles from Monroe.
How much longer is the road route than the straight-line distance?
The direct path is about 87.6 miles (140.9 km), while the road route adds roughly 15.4 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 2:04 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.73 one way or $27.45 round trip. Estimated CO2 is about 32.3 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around West Allis and Showers And Thunderstorms Likely near Monroe.
Stop Ideas Near Darien
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 Darien.
South Beloit, Illinois
Janesville, Wisconsin
Rockford, Illinois
Sturtevant station
Flight Path Map
This map shows the direct air route between West Allis and Monroe. Straight-line distance: 87.53 mi (140.87 km).
#1 West Allis
The most populous city in Milwaukee County, Wisconsin.
| Population | 59,748 |
| Coordinates | 43.0166800, -88.0070300 |
| Altitude | 222 |
| Country | United States |
#2 Monroe
City in and the county seat of Green County, Wisconsin, United States
| Population | 1,236 |
| Coordinates | 42.6011200, -89.6384500 |
| Altitude | 322 |
| Country | United States |
End: Monroe (-89.63845, 42.60112)
Estimated Travel Time
Distance: 166 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 25m |
| 40 mph (64.37 km/h) | 02h 34m |
| 50 mph (80.47 km/h) | 02h 03m |
| 60 mph (96.56 km/h) | 01h 43m |
| 70 mph (112.65 km/h) | 01h 28m |
| 80 mph (129 km/h) | 01h 17m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $13.73 | $27.45 |
| Mid-grade | $4.25 | $15.48 | $30.96 |
| Premium | $4.65 | $16.94 | $33.88 |
| Diesel | $5.30 | $19.31 | $38.61 |
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 Wisconsin · May 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.