How far is City of Janesville, WI from Byron, WI?
The driving distance from City of Janesville, WI to Byron, WI is about 86.4 miles (139 km), with a travel time of about 02h 02m by car.
- The straight-line flight distance is about 72.6 miles (116.8 km).
- For a round trip, plan for roughly 04h 05m 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 02h 02m.
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.
City in Jefferson County, New York
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between City of Janesville and Byron.
Turn-by-Turn Driving Directions
Step-by-step road directions between City of Janesville and Byron.
-
1
Start on East Court Street
45 m · 6 sec · East Court Street
-
2
Turn right onto Harrison Street
156 m · 27 sec · Harrison Street
-
3
Turn left onto East Milwaukee Street
841 ft · 21 sec · East Milwaukee Street
-
4
Turn sharp right onto Milton Avenue
14.2 mi · 21 min · Milton Avenue
-
5
Continue straight
21.2 mi · 26 min
-
6
Continue straight
22.8 mi · 28 min
-
7
Turn left onto Western Avenue
1806 ft · 52 sec · Western Avenue
-
8
At the end of the road, turn right onto West North Street
2962 ft · 1 min · West North Street
-
9
At the end of the road, turn left onto North Main Street
1.5 km · 2 min · North Main Street
-
10
Continue on State Highway 26
1.5 mi · 2 min · State Highway 26
-
11
Turn right onto State Highway 33
2.2 mi · 3 min · State Highway 33
-
12
Continue on Washington Street
1 km · 1 min · Washington Street
-
13
Turn left onto Main Street
1568 ft · 27 sec · Main Street
-
14
Continue on Barstow Street
1406 ft · 24 sec · Barstow Street
-
15
Turn straight onto Vine Street
791 ft · 17 sec · Vine Street
-
16
Turn right onto East Lake Street
2487 ft · 48 sec · East Lake Street
-
17
Turn left onto State Highway 28
4.3 mi · 8 min · State Highway 28
-
18
Continue on Horicon Street
1 mi · 3 min · Horicon Street
-
19
Turn left onto South Main Street
1.7 mi · 3 min · South Main Street
-
20
Continue on State Highway 67
3.6 mi · 5 min · State Highway 67
-
21
Continue on Mayville Street
2559 ft · 49 sec · Mayville Street
-
22
At the end of the road, turn left onto North Milwaukee Street
2231 ft · 38 sec · North Milwaukee Street
-
23
Continue on State Highway 67
1.2 km · 1 min · State Highway 67
-
24
Enter the roundabout and take exit 2 toward State Highway 67
55 m · 3 sec · State Highway 67
-
25
Exit the roundabout onto State Highway 67
3.4 mi · 6 min · State Highway 67
-
26
Continue on Milwaukee Street
1347 ft · 27 sec · Milwaukee Street
-
27
Continue on State Highway 175
4.5 mi · 8 min · State Highway 175
-
28
Arrive at your destination
0 m · 1 sec · State Highway 175
Car Route Details
A richer read on the saved driving route between City of Janesville and Byron.
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.
Milton Avenue
Continue straight
22.8 mi · 00h 28m
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.
Chance Showers And Thunderstorms leaving City of Janesville and Showers And Thunderstorms near Byron.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from City of Janesville to Byron?
The road trip is about 86.4 miles (139 km) and usually takes 02h 02m 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?
Watertown is a useful midpoint, sitting about 43.2 miles from City of Janesville and 43.2 miles from Byron.
How much longer is the road route than the straight-line distance?
The direct path is about 72.6 miles (116.8 km), while the road route adds roughly 13.8 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 2:24 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.50 one way or $23.00 round trip. Estimated CO2 is about 27.1 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around City of Janesville and Showers And Thunderstorms near Byron.
Stop Ideas Near Watertown
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 Watertown.
Columbus
Beaver Dam, WI
Waupun, WI
Madison (South), Wisconsin
Flight Path Map
This map shows the direct air route between City of Janesville and Byron. Straight-line distance: 72.55 mi (116.76 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 Byron
Civil town in Fond du Lac County, Wisconsin
| Population | 1,348 |
| Coordinates | 43.6522100, -88.4509400 |
| Altitude | 324 |
| Country | United States |
End: Byron (-88.45094, 43.65221)
Estimated Travel Time
Distance: 139 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 52m |
| 40 mph (64.37 km/h) | 02h 09m |
| 50 mph (80.47 km/h) | 01h 43m |
| 60 mph (96.56 km/h) | 01h 26m |
| 70 mph (112.65 km/h) | 01h 14m |
| 80 mph (129 km/h) | 01h 04m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $11.50 | $23.00 |
| Mid-grade | $4.25 | $12.97 | $25.94 |
| Premium | $4.65 | $14.19 | $28.39 |
| Diesel | $5.30 | $16.18 | $32.35 |
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 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.