How far is Lake Koshkonong, WI from City of Janesville, WI?
The driving distance from Lake Koshkonong, WI to City of Janesville, WI is about 22 miles (35.4 km), with a travel time of about 00h 29m by car.
- The straight-line flight distance is about 16.2 miles (26.1 km).
- For a round trip, plan for roughly 00h 59m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 29m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Civil town in Jefferson County, Wisconsin
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Snow Showers then Slight Chance Rain Showers
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Lake Koshkonong and City of Janesville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lake Koshkonong and City of Janesville.
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1
Start on North Shore Road
2.2 mi · 9 min · North Shore Road
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2
At the end of the road, turn right onto State Highway 106
972 ft · 16 sec · State Highway 106
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3
Take the ramp right
1188 ft · 29 sec
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4
Merge slight left
18.4 mi · 25 min
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5
Turn left onto East Memorial Drive
80 m · 12 sec · East Memorial Drive
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6
Continue on North Garfield Avenue
2552 ft · 2 min · North Garfield Avenue
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7
Turn right onto East Court Street
142 m · 16 sec · East Court Street
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8
Arrive at your destination
0 m · 1 sec · East Court Street
Car Route Details
A richer read on the saved driving route between Lake Koshkonong and City of Janesville.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
State Highway 106
Merge slight left
18.4 mi · 00h 25m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Slight Chance Snow Showers then Slight Chance Rain Showers leaving Lake Koshkonong 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 Lake Koshkonong to City of Janesville?
The road trip is about 22 miles (35.4 km) and usually takes 00h 29m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Koshkonong is a useful midpoint, sitting about 10.8 miles from Lake Koshkonong and 11.2 miles from City of Janesville.
How much longer is the road route than the straight-line distance?
The direct path is about 16.2 miles (26.1 km), while the road route adds roughly 5.8 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 7:00 AM to 7:00 PM CDT. If you want a more comfortable same-day return, try to leave by 7:30 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.94 one way or $5.88 round trip. Estimated CO2 is about 6.9 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Snow Showers then Slight Chance Rain Showers around Lake Koshkonong and Mostly Sunny near City of Janesville.
Stop Ideas Near Koshkonong
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 Koshkonong.
Janesville, Wisconsin
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Madison, Wisconsin
Flight Path Map
This map shows the direct air route between Lake Koshkonong and City of Janesville. Straight-line distance: 16.2 mi (26.07 km).
#1 Lake Koshkonong
Census designated place
| Population | 1,204 |
| Coordinates | 42.9097300, -88.9195500 |
| Altitude | 238 |
| 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: 35 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 43m |
| 40 mph (64.37 km/h) | 00h 32m |
| 50 mph (80.47 km/h) | 00h 26m |
| 60 mph (96.56 km/h) | 00h 21m |
| 70 mph (112.65 km/h) | 00h 18m |
| 80 mph (129 km/h) | 00h 16m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $2.94 | $5.88 |
| Mid-grade | $4.25 | $3.32 | $6.63 |
| Premium | $4.65 | $3.63 | $7.26 |
| Diesel | $5.30 | $4.14 | $8.27 |
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.