How far is City of Janesville, WI from Porterfield, WI?
The driving distance from City of Janesville, WI to Porterfield, WI is about 208 miles (334.8 km), with a travel time of about 04h 24m by car.
- The straight-line flight distance is about 181.1 miles (291.4 km).
- For a round trip, plan for roughly 08h 48m 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 24m.
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.
Chance Rain Showers
Partly Sunny
Driving Route Map
The map below follows the saved road route between City of Janesville and Porterfield.
Turn-by-Turn Driving Directions
Step-by-step road directions between City of Janesville and Porterfield.
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1
Start on East Court Street
45 m · 6 sec · East Court Street
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2
Turn right onto Harrison Street
156 m · 27 sec · Harrison Street
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3
Turn left onto East Milwaukee Street
841 ft · 21 sec · East Milwaukee Street
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4
Turn sharp right onto Milton Avenue
14.2 mi · 21 min · Milton Avenue
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5
Continue straight
21.2 mi · 26 min
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6
Continue straight
22.8 mi · 28 min
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7
Turn left onto Western Avenue
1806 ft · 52 sec · Western Avenue
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8
At the end of the road, turn right onto West North Street
2962 ft · 1 min · West North Street
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9
At the end of the road, turn left onto North Main Street
1.5 km · 2 min · North Main Street
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10
Continue on State Highway 26
5.6 mi · 8 min · State Highway 26
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11
Continue on Front Street
2888 ft · 1 min · Front Street
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12
Continue on State Highway 26
6.7 mi · 9 min · State Highway 26
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13
Take the exit slight right
2470 ft · 1 min
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14
Merge slight left
3.8 mi · 4 min
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15
Take the exit slight right toward WI 26 North: Rosendale
1003 ft · 25 sec
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16
Keep slight right
1919 ft · 47 sec
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17
Turn left onto State Highway 26
10.1 mi · 14 min · State Highway 26
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18
Continue on South Main Street
1 mi · 3 min · South Main Street
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19
Continue on State Highway 26
10.9 mi · 15 min · State Highway 26
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20
Turn left onto I-41_North: Appleton, Green_Bay
1503 ft · 39 sec
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21
Merge slight left onto Appleton
73.1 mi · 1 hr 19 min
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22
Keep slight right to continue on US 41, LMCT: Oconto, Marinette
25.4 mi · 29 min
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23
Take the exit slight right toward US 41 Business, CTH Y: Peshtigo
1801 ft · 44 sec
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24
Turn left onto French Street
1.3 km · 2 min · French Street
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25
Turn left onto North Lake Street
1850 ft · 59 sec · North Lake Street
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26
Continue on County Highway D
3.2 mi · 6 min · County Highway D
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27
Turn right onto County Highway E
1.4 km · 2 min · County Highway E
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28
Turn left onto State Highway 64
152 m · 11 sec · State Highway 64
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29
Turn right onto County Highway E
3.5 mi · 9 min · County Highway E
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30
Turn right onto Rowe Road
71 m · 10 sec · Rowe Road
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31
Arrive at your destination
0 m · 1 sec · Rowe Road
Car Route Details
A richer read on the saved driving route between City of Janesville and Porterfield.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Appleton
Merge slight left onto Appleton
73.1 mi · 01h 19m
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.
Chance Rain Showers leaving City of Janesville and Partly Sunny near Porterfield.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from City of Janesville to Porterfield?
The road trip is about 208 miles (334.8 km) and usually takes 04h 24m 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 104 miles from City of Janesville and 104 miles from Porterfield.
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 26.9 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 8:12 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $27.68 one way or $55.36 round trip. Estimated CO2 is about 65.2 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around City of Janesville and Partly Sunny near Porterfield.
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 City of Janesville and Porterfield. Straight-line distance: 181.04 mi (291.35 km).
#1 City of Janesville
The most populous city in Rock County, Wisconsin.
| Population | 64,128 |
| Coordinates | 42.6857000, -89.0138500 |
| Altitude | 261 |
| Country | United States |
#2 Porterfield
Civil town in Marinette County, Wisconsin, United States
| Population | 1,962 |
| Coordinates | 45.1544300, -87.7945500 |
| Altitude | 203 |
| Country | United States |
End: Porterfield (-87.79455, 45.15443)
Estimated Travel Time
Distance: 335 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 55m |
| 40 mph (64.37 km/h) | 05h 12m |
| 50 mph (80.47 km/h) | 04h 09m |
| 60 mph (96.56 km/h) | 03h 28m |
| 70 mph (112.65 km/h) | 02h 58m |
| 80 mph (129 km/h) | 02h 35m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $27.68 | $55.36 |
| Mid-grade | $4.25 | $31.22 | $62.43 |
| Premium | $4.65 | $34.16 | $68.32 |
| Diesel | $5.30 | $38.93 | $77.86 |
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.