How far is Somerset, WI from West Allis, WI?
The driving distance from Somerset, WI to West Allis, WI is about 315 miles (506.9 km), with a travel time of about 04h 53m by car.
- The straight-line flight distance is about 273.6 miles (440.3 km).
- For a round trip, plan for roughly 09h 47m 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 53m.
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 Monroe County, Wisconsin
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers then Mostly Sunny
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Somerset and West Allis.
Turn-by-Turn Driving Directions
Step-by-step road directions between Somerset and West Allis.
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1
Start on Main Street
97 m · 18 sec · Main Street
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2
Turn left onto County Road I
1.2 km · 2 min · County Road I
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3
Enter the roundabout and take exit 2 toward County Road I
22 m · 2 sec · County Road I
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4
Exit the roundabout onto County Road I
5.9 mi · 9 min · County Road I
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5
Turn sharp left onto County Road E
1.5 km · 1 min · County Road E
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6
Continue on County Highway E
2113 ft · 34 sec · County Highway E
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7
Continue on County Highway E
4.2 mi · 6 min · County Highway E
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8
Turn right onto 120th Street
3 mi · 5 min · 120th Street
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9
Enter the roundabout and take exit 2 toward State Highway 65
39 m · 7 sec · State Highway 65
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10
Exit the roundabout onto State Highway 65
1.6 km · 1 min · State Highway 65
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11
Enter the roundabout and take exit 2 toward State Highway 65
33 m · 6 sec · State Highway 65
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12
Exit the roundabout onto State Highway 65
1.1 mi · 2 min · State Highway 65
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13
Continue on State Highway 65
531 ft · 15 sec · State Highway 65
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14
Enter the roundabout and take exit 2 toward State Highway 65
29 m · 5 sec · State Highway 65
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15
Exit the roundabout onto State Highway 65
591 ft · 16 sec · State Highway 65
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16
Enter the roundabout and take exit 2 toward Eau Claire, Madison
89 m · 17 sec
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17
Exit the roundabout onto Eau Claire, Madison
1844 ft · 45 sec
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18
Merge slight left
228.4 mi · 4 hr 5 min
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19
Keep slight left to continue on I 94: Milwaukee
65.1 mi · 1 hr 11 min
-
20
Take the exit slight right toward WI 181: 84th Street
1.5 km · 2 min
-
21
Keep slight right to continue on WI 181 South: 84th Street South, Milwaukee Mile Speedway, Pettit National Ice Center
59 m · 5 sec
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22
Turn right onto South 84th Street
1.1 km · 2 min · South 84th Street
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23
Turn left onto West Greenfield Avenue
2754 ft · 2 min · West Greenfield Avenue
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24
Arrive at your destination
0 m · 1 sec · West Greenfield Avenue
Car Route Details
A richer read on the saved driving route between Somerset and West Allis.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Eau Claire
Merge slight left
228 mi · 04h 05m
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.
Slight Chance Rain Showers then Mostly Sunny leaving Somerset and Showers And Thunderstorms Likely near West Allis.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Somerset to West Allis?
The road trip is about 315 miles (506.9 km) and usually takes 04h 53m 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?
Oakdale is a useful midpoint, sitting about 156.6 miles from Somerset and 158.4 miles from West Allis.
How much longer is the road route than the straight-line distance?
The direct path is about 273.6 miles (440.3 km), while the road route adds roughly 41.4 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 7:12 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $41.93 one way or $83.87 round trip. Estimated CO2 is about 98.8 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers then Mostly Sunny around Somerset and Showers And Thunderstorms Likely near West Allis.
Stop Ideas Near Oakdale
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 Oakdale.
Tomah
Wisconsin Dells
Wisconsin Rapids, WI
La Crosse
Flight Path Map
This map shows the direct air route between Somerset and West Allis. Straight-line distance: 273.56 mi (440.25 km).
#1 Somerset
Village in St.
| Population | 4,418 |
| Coordinates | 45.1244100, -92.6735400 |
| Altitude | 257 |
| Country | United States |
#2 West Allis
The most populous city in Milwaukee County, Wisconsin.
| Population | 59,748 |
| Coordinates | 43.0166800, -88.0070300 |
| Altitude | 222 |
| Country | United States |
End: West Greenfield Avenue (-88.007075, 43.01665)
Estimated Travel Time
Distance: 507 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 29m |
| 40 mph (64.37 km/h) | 07h 52m |
| 50 mph (80.47 km/h) | 06h 17m |
| 60 mph (96.56 km/h) | 05h 15m |
| 70 mph (112.65 km/h) | 04h 30m |
| 80 mph (129 km/h) | 03h 55m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $41.93 | $83.87 |
| Mid-grade | $4.25 | $47.29 | $94.59 |
| Premium | $4.65 | $51.75 | $103.50 |
| Diesel | $5.30 | $58.98 | $117.96 |
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.