How far is Port Washington, WI from City of Janesville, WI?
The driving distance from Port Washington, WI to City of Janesville, WI is about 100 miles (160.9 km), with a travel time of about 01h 43m by car.
- The straight-line flight distance is about 75.2 miles (121 km).
- For a round trip, plan for roughly 03h 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 01h 43m.
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.
Town in Waukesha County, Wisconsin, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Port Washington and City of Janesville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Port Washington and City of Janesville.
-
1
Start on South Webster Street
32 m · 10 sec · South Webster Street
-
2
Turn left onto West Grand Avenue
2615 ft · 52 sec · West Grand Avenue
-
3
Turn left onto South Spring Street
3.9 mi · 6 min · South Spring Street
-
4
Turn left onto I 43 South, WI 32, WI 57
20.9 mi · 26 min
-
5
Take the exit slight right toward I 94 West: Madison
1.3 km · 2 min
-
6
Merge slight left onto East-West Freeway
4.8 mi · 7 min · East-West Freeway
-
7
Take the exit slight right toward I 41, US 45, I 894: Fond du Lac, Chicago
1066 ft · 26 sec
-
8
Keep slight left to continue on I 41 South, I 894 South, US 45 South: Chicago
1.3 km · 1 min
-
9
Keep slight left to continue on I 41, I 894, US 45 South: Chicago
1177 ft · 29 sec
-
10
Merge slight left onto Zoo Freeway
3.5 mi · 5 min · Zoo Freeway
-
11
Take the exit slight right toward I 43 South, US 45 South: Beloit
45.6 mi · 49 min
-
12
Take the exit slight right toward US 14: Darien, Janesville
1398 ft · 34 sec
-
13
Keep slight right
37 m · 3 sec
-
14
Merge slight left
3.3 mi · 5 min
-
15
Turn left
11.2 mi · 15 min
-
16
Turn left onto East Racine Street
1.5 mi · 2 min · East Racine Street
-
17
Enter the roundabout and take exit 2 toward East Racine Street
36 m · 7 sec · East Racine Street
-
18
Exit the roundabout onto East Racine Street
663 ft · 13 sec · East Racine Street
-
19
Enter the roundabout and take exit 1 toward East Racine Street
29 m · 6 sec · East Racine Street
-
20
Exit the roundabout onto East Racine Street
1.1 mi · 2 min · East Racine Street
-
21
Turn right onto South Randall Avenue
2670 ft · 1 min · South Randall Avenue
-
22
Turn left onto Ruger Avenue
2483 ft · 1 min · Ruger Avenue
-
23
At the end of the road, turn left onto East Court Street
582 ft · 20 sec · East Court Street
-
24
Arrive at your destination
0 m · 1 sec · East Court Street
Car Route Details
A richer read on the saved driving route between Port Washington and City of Janesville.
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
45.6 mi · 00h 50m
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.
Mostly Sunny leaving Port Washington and Mostly Sunny near City of Janesville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Port Washington to City of Janesville?
The road trip is about 100 miles (160.9 km) and usually takes 01h 43m 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?
Vernon is a useful midpoint, sitting about 49.9 miles from Port Washington and 50.1 miles from City of Janesville.
How much longer is the road route than the straight-line distance?
The direct path is about 75.2 miles (121 km), while the road route adds roughly 24.8 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 3:04 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.31 one way or $26.62 round trip. Estimated CO2 is about 31.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Port Washington and Mostly Sunny near City of Janesville.
Stop Ideas Near Vernon
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 Vernon.
Milwaukee Airport Railroad Station
Milwaukee Intermodal Station
Sturtevant station
Janesville, Wisconsin
Flight Path Map
This map shows the direct air route between Port Washington and City of Janesville. Straight-line distance: 75.19 mi (121 km).
#1 Port Washington
Fourth-class city in and county seat of Ozaukee County, Wisconsin
| Population | 1,584 |
| Coordinates | 43.3872200, -87.8756400 |
| Altitude | 183 |
| Country | United States |
#2 City of Janesville
The most populous city in Rock County, Wisconsin.
| Population | 64,128 |
| Coordinates | 42.6857000, -89.0138500 |
| Altitude | 261 |
| Country | United States |
End: East Court Street (-89.013903, 42.685777)
Estimated Travel Time
Distance: 161 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 19m |
| 40 mph (64.37 km/h) | 02h 29m |
| 50 mph (80.47 km/h) | 01h 59m |
| 60 mph (96.56 km/h) | 01h 39m |
| 70 mph (112.65 km/h) | 01h 25m |
| 80 mph (129 km/h) | 01h 14m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $13.31 | $26.62 |
| Mid-grade | $4.25 | $15.01 | $30.03 |
| Premium | $4.65 | $16.43 | $32.86 |
| Diesel | $5.30 | $18.72 | $37.45 |
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 25, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.