How far is City of Janesville, WI from Green Bay, WI?
The driving distance from City of Janesville, WI to Green Bay, WI is about 155.7 miles (250.6 km), with a travel time of about 03h 21m by car.
- The straight-line flight distance is about 136.1 miles (219 km).
- For a round trip, plan for roughly 06h 43m 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 21m.
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 Dodge and Fond du Lac counties, Wisconsin, United States of America
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 City of Janesville and Green Bay.
Turn-by-Turn Driving Directions
Step-by-step road directions between City of Janesville and Green Bay.
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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
49.4 mi · 53 min
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22
Take the exit slight right toward Ashland Avenue
3005 ft · 1 min
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23
Continue on South Ashland Avenue
705 ft · 14 sec · South Ashland Avenue
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24
Enter the roundabout and take exit 2 toward North Ashland Avenue
38 m · 3 sec · North Ashland Avenue
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25
Exit the roundabout onto North Ashland Avenue
3.2 mi · 6 min · North Ashland Avenue
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26
Continue on South Ashland Avenue
1.7 mi · 3 min · South Ashland Avenue
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27
Turn right onto West Walnut Street
1043 ft · 25 sec · West Walnut Street
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28
Turn left onto North Broadway
1202 ft · 39 sec · North Broadway
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29
Turn right onto Dousman Street
15 m · 2 sec · Dousman Street
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30
Arrive at your destination
0 m · 1 sec · Dousman Street
Car Route Details
A richer read on the saved driving route between City of Janesville and Green Bay.
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
49.4 mi · 00h 53m
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.
Mostly Sunny leaving City of Janesville and Sunny near Green Bay.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from City of Janesville to Green Bay?
The road trip is about 155.7 miles (250.6 km) and usually takes 03h 21m 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?
Waupun is a useful midpoint, sitting about 77.9 miles from City of Janesville and 77.9 miles from Green Bay.
How much longer is the road route than the straight-line distance?
The direct path is about 136.1 miles (219 km), while the road route adds roughly 19.6 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 10:16 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.70 one way or $41.41 round trip. Estimated CO2 is about 48.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around City of Janesville and Sunny near Green Bay.
Stop Ideas Near Waupun
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 Waupun.
Waupun, WI
Beaver Dam, WI
Fond du Lac, Wisconsin
Columbus
Flight Path Map
This map shows the direct air route between City of Janesville and Green Bay. Straight-line distance: 136.09 mi (219.02 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 Green Bay
City in and county seat of Brown County, Wisconsin
| Population | 2,189 |
| Coordinates | 44.5191600, -88.0198300 |
| Altitude | 180 |
| Country | United States |
End: Green Bay (-88.01983, 44.51916)
Estimated Travel Time
Distance: 251 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 11m |
| 40 mph (64.37 km/h) | 03h 53m |
| 50 mph (80.47 km/h) | 03h 06m |
| 60 mph (96.56 km/h) | 02h 35m |
| 70 mph (112.65 km/h) | 02h 13m |
| 80 mph (129 km/h) | 01h 56m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $20.70 | $41.41 |
| Mid-grade | $4.25 | $23.35 | $46.70 |
| Premium | $4.65 | $25.55 | $51.10 |
| Diesel | $5.30 | $29.12 | $58.24 |
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 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.