How far is Portland, WI from City of Janesville, WI?
The driving distance from Portland, WI to City of Janesville, WI is about 164 miles (264 km), with a travel time of about 02h 35m by car.
- The straight-line flight distance is about 119.2 miles (191.9 km).
- For a round trip, plan for roughly 05h 10m 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 35m.
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.
Village in Sauk County, Wisconsin, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Portland and City of Janesville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Portland and City of Janesville.
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1
Start on County Highway X
46 m · 11 sec · County Highway X
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2
Turn left onto State Highway 33
96 m · 5 sec · State Highway 33
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3
Turn right onto County Highway X
6.5 mi · 11 min · County Highway X
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4
At the end of the road, turn left onto State Highway 27
5.3 mi · 7 min · State Highway 27
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5
Continue on South Black River Street
1006 ft · 16 sec · South Black River Street
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6
Take the ramp right
1515 ft · 37 sec
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7
Merge slight left
111.9 mi · 2 hr
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8
Keep slight right to continue on I 39, I 90: Chicago
33.1 mi · 35 min
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9
Take the exit slight right
1240 ft · 30 sec
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10
Keep slight right to continue on WI 26: State Highway 26
1117 ft · 32 sec
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11
Keep slight right to continue on WI 26 South: Janesville
126 m · 10 sec
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12
Turn slight right onto Milton Avenue
2.3 mi · 5 min · Milton Avenue
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13
Turn left onto East Memorial Drive
80 m · 12 sec · East Memorial Drive
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14
Continue on North Garfield Avenue
2552 ft · 2 min · North Garfield Avenue
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15
Turn right onto East Court Street
142 m · 16 sec · East Court Street
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16
Arrive at your destination
0 m · 1 sec · East Court Street
Car Route Details
A richer read on the saved driving route between Portland and City of Janesville.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
South Black River Street
Merge slight left
112 mi · 02h 00m
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 Portland and 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 Portland to City of Janesville?
The road trip is about 164 miles (264 km) and usually takes 02h 35m 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?
Lake Delton is a useful midpoint, sitting about 80.3 miles from Portland and 83.7 miles from City of Janesville.
How much longer is the road route than the straight-line distance?
The direct path is about 119.2 miles (191.9 km), while the road route adds roughly 44.8 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 1:20 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.83 one way or $43.67 round trip. Estimated CO2 is about 51.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Portland and Sunny near City of Janesville.
Stop Ideas Near Lake Delton
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 Lake Delton.
Wisconsin Dells
Portage
Westfield, WI
Madison, Wisconsin
Flight Path Map
This map shows the direct air route between Portland and City of Janesville. Straight-line distance: 119.25 mi (191.92 km).
#1 Portland
Town in Monroe County, Wisconsin, United States of America
| Population | 1,065 |
| Coordinates | 43.7688600, -90.8581900 |
| Altitude | 398 |
| 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: 264 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 27m |
| 40 mph (64.37 km/h) | 04h 06m |
| 50 mph (80.47 km/h) | 03h 16m |
| 60 mph (96.56 km/h) | 02h 44m |
| 70 mph (112.65 km/h) | 02h 20m |
| 80 mph (129 km/h) | 02h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $21.83 | $43.67 |
| Mid-grade | $4.25 | $24.62 | $49.25 |
| Premium | $4.65 | $26.95 | $53.89 |
| Diesel | $5.30 | $30.71 | $61.42 |
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.