How far is Porterfield, WI from City of Janesville, WI?
The driving distance from Porterfield, WI to City of Janesville, WI is about 205.6 miles (330.9 km), with a travel time of about 03h 31m by car.
- The straight-line flight distance is about 181.1 miles (291.4 km).
- For a round trip, plan for roughly 07h 02m 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 03h 31m.
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.
City in and county seat of Winnebago County, Wisconsin
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Porterfield and City of Janesville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Porterfield and City of Janesville.
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1
Start on Rowe Road
71 m · 15 sec · Rowe Road
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2
Turn left onto County Highway E
3.5 mi · 9 min · County Highway E
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3
At the end of the road, turn left onto State Highway 64
152 m · 10 sec · State Highway 64
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4
Turn right onto County Highway E
1.4 km · 2 min · County Highway E
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5
Turn left onto County Highway D
3.2 mi · 6 min · County Highway D
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6
Continue on North Lake Street
1850 ft · 1 min · North Lake Street
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7
At the end of the road, turn right onto French Street
1.1 km · 1 min · French Street
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8
Take the ramp right
62.1 mi · 1 hr 9 min
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9
Continue straight
36.8 mi · 40 min
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10
Take the exit slight right toward WI 26, CTH N: Rosendale
2112 ft · 52 sec
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11
Turn right onto State Highway 26
10.7 mi · 15 min · State Highway 26
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12
Continue on North Main Street
1 mi · 3 min · North Main Street
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13
Continue on State Highway 26
9.7 mi · 13 min · State Highway 26
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14
Take the ramp slight right
2383 ft · 58 sec
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15
Merge slight left
4.1 mi · 5 min
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16
Take the exit slight right toward WI 26: Waupun, Juneau
1257 ft · 31 sec
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17
Keep slight left
57 m · 5 sec
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18
Turn left onto State Highway 26
6.9 mi · 9 min · State Highway 26
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19
Continue on Front Street
2888 ft · 1 min · Front Street
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20
Continue on State Highway 26
5.6 mi · 8 min · State Highway 26
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21
Continue on North Main Street
1.5 km · 2 min · North Main Street
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22
Turn right onto West North Street
2962 ft · 1 min · West North Street
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23
Turn left onto Western Avenue
1806 ft · 51 sec · Western Avenue
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24
Turn right onto State Highway 26
22.8 mi · 28 min · State Highway 26
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25
Continue straight
34.8 mi · 46 min
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26
Turn left onto East Memorial Drive
80 m · 12 sec · East Memorial Drive
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27
Continue on North Garfield Avenue
2552 ft · 2 min · North Garfield Avenue
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28
Turn right onto East Court Street
142 m · 16 sec · East Court Street
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29
Arrive at your destination
0 m · 1 sec · East Court Street
Car Route Details
A richer read on the saved driving route between Porterfield and City of Janesville.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
French Street
Take the ramp right
62.1 mi · 01h 09m
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.
Partly Sunny leaving Porterfield and Chance Rain Showers near City of Janesville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Porterfield to City of Janesville?
The road trip is about 205.6 miles (330.9 km) and usually takes 03h 31m 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?
Oshkosh is a useful midpoint, sitting about 103.8 miles from Porterfield and 101.8 miles from City of Janesville.
How much longer is the road route than the straight-line distance?
The direct path is about 181.1 miles (291.4 km), while the road route adds roughly 24.5 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 9:58 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $27.34 one way or $54.68 round trip. Estimated CO2 is about 64.4 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Porterfield and Chance Rain Showers near City of Janesville.
Stop Ideas Near Oshkosh
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 Oshkosh.
Oshkosh, WI
Oshkosh, Wisconsin
Appleton, Wisconsin
Fond du Lac, Wisconsin
Flight Path Map
This map shows the direct air route between Porterfield and City of Janesville. Straight-line distance: 181.04 mi (291.35 km).
#1 Porterfield
Civil town in Marinette County, Wisconsin, United States
| Population | 1,962 |
| Coordinates | 45.1544300, -87.7945500 |
| Altitude | 203 |
| 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: 331 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 51m |
| 40 mph (64.37 km/h) | 05h 08m |
| 50 mph (80.47 km/h) | 04h 06m |
| 60 mph (96.56 km/h) | 03h 25m |
| 70 mph (112.65 km/h) | 02h 56m |
| 80 mph (129 km/h) | 02h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $27.34 | $54.68 |
| Mid-grade | $4.25 | $30.83 | $61.67 |
| Premium | $4.65 | $33.74 | $67.48 |
| Diesel | $5.30 | $38.45 | $76.91 |
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 05, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.