How far is Portage, WI from City of Janesville, WI?
The driving distance from Portage, WI to City of Janesville, WI is about 71.3 miles (114.7 km), with a travel time of about 01h 09m by car.
- The straight-line flight distance is about 63.2 miles (101.7 km).
- For a round trip, plan for roughly 02h 18m 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 09m.
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.
Human settlement in Langlade County, Wisconsin, United States of America
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 Portage and City of Janesville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Portage and City of Janesville.
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1
Start on West Cook Street
2 mi · 3 min · West Cook Street
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2
Take the ramp slight right
2390 ft · 59 sec
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3
Merge slight left
2.2 mi · 2 min
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4
Keep slight right
29.6 mi · 32 min
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5
Keep slight right to continue on I 39, I 90: Chicago
33.1 mi · 35 min
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6
Take the exit slight right
1240 ft · 30 sec
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7
Keep slight right to continue on WI 26: State Highway 26
1117 ft · 32 sec
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8
Keep slight right to continue on WI 26 South: Janesville
126 m · 10 sec
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9
Turn slight right onto Milton Avenue
2.3 mi · 5 min · Milton Avenue
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10
Turn left onto East Memorial Drive
80 m · 12 sec · East Memorial Drive
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11
Continue on North Garfield Avenue
2552 ft · 2 min · North Garfield Avenue
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12
Turn right onto East Court Street
142 m · 16 sec · East Court Street
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13
Arrive at your destination
0 m · 1 sec · East Court Street
Car Route Details
A richer read on the saved driving route between Portage 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.
I 39
Keep slight right to continue on I 39, I 90: Chicago
33.1 mi · 00h 35m
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 Portage 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 Portage to City of Janesville?
The road trip is about 71.3 miles (114.7 km) and usually takes 01h 09m 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?
Vilas is a useful midpoint, sitting about 35.4 miles from Portage and 35.9 miles from City of Janesville.
How much longer is the road route than the straight-line distance?
The direct path is about 63.2 miles (101.7 km), while the road route adds roughly 8.1 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 4:12 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $9.47 one way or $18.93 round trip. Estimated CO2 is about 22.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Portage and Mostly Sunny near City of Janesville.
Stop Ideas Near Vilas
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 Vilas.
Madison (South), Wisconsin
Madison, Wisconsin
Columbus
Janesville, Wisconsin
Flight Path Map
This map shows the direct air route between Portage and City of Janesville. Straight-line distance: 63.16 mi (101.65 km).
#1 Portage
Fourth-class city in Columbia County, Wisconsin
| Population | 10,381 |
| Coordinates | 43.5391500, -89.4626200 |
| Altitude | 241 |
| 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: 115 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 22m |
| 40 mph (64.37 km/h) | 01h 46m |
| 50 mph (80.47 km/h) | 01h 25m |
| 60 mph (96.56 km/h) | 01h 11m |
| 70 mph (112.65 km/h) | 01h 01m |
| 80 mph (129 km/h) | 00h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $9.47 | $18.93 |
| Mid-grade | $4.25 | $10.68 | $21.35 |
| Premium | $4.65 | $11.68 | $23.36 |
| Diesel | $5.30 | $13.31 | $26.63 |
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 · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.