How far is City of Janesville, WI from Amherst, WI?
The driving distance from City of Janesville, WI to Amherst, WI is about 146.4 miles (235.6 km), with a travel time of about 02h 51m by car.
- The straight-line flight distance is about 122.7 miles (197.5 km).
- For a round trip, plan for roughly 05h 43m 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 51m.
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.
Fourth-class city in Columbia County, Wisconsin
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Chance Light Rain
Driving Route Map
The map below follows the saved road route between City of Janesville and Amherst.
Turn-by-Turn Driving Directions
Step-by-step road directions between City of Janesville and Amherst.
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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
3.1 mi · 7 min · Milton Avenue
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5
Take the exit slight left
1.3 km · 2 min
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6
Merge slight left
61.3 mi · 1 hr 6 min
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7
Keep slight right to continue on WI 78 South, I 39 North: Merrimac, Portage, Wausau
1128 ft · 15 sec
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8
Continue on I 39 North: Portage, Wausau
68.6 mi · 1 hr 14 min
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9
Take the exit slight right toward CTH B: Plover, Amherst
820 ft · 20 sec
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10
Keep slight right
50 m · 4 sec
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11
Turn straight onto Plover Road
1.7 mi · 3 min · Plover Road
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12
Continue on County Road B
8.7 mi · 15 min · County Road B
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13
Continue on Western Way
1.3 km · 2 min · Western Way
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14
Continue on Wilson Street
2771 ft · 2 min · Wilson Street
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15
Turn right onto South Main Street
8 m · 1 sec · South Main Street
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16
Arrive at your destination
0 m · 1 sec · South Main Street
Car Route Details
A richer read on the saved driving route between City of Janesville and Amherst.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
I 39 North
Continue on I 39 North: Portage, Wausau
68.6 mi · 01h 14m
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.
Showers And Thunderstorms Likely leaving City of Janesville and Chance Light Rain near Amherst.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from City of Janesville to Amherst?
The road trip is about 146.4 miles (235.6 km) and usually takes 02h 51m 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?
Portage is a useful midpoint, sitting about 73.2 miles from City of Janesville and 73.2 miles from Amherst.
How much longer is the road route than the straight-line distance?
The direct path is about 122.7 miles (197.5 km), while the road route adds roughly 23.7 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 12:46 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $19.46 one way or $38.92 round trip. Estimated CO2 is about 45.9 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around City of Janesville and Chance Light Rain near Amherst.
Stop Ideas Near Portage
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 Portage.
Portage
Wisconsin Dells
Westfield, WI
Columbus
Flight Path Map
This map shows the direct air route between City of Janesville and Amherst. Straight-line distance: 122.71 mi (197.48 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 Amherst
Town in Portage County, Wisconsin, United States
| Population | 1,361 |
| Coordinates | 44.4508100, -89.2848400 |
| Altitude | 320 |
| Country | United States |
End: Amherst (-89.28484, 44.45081)
Estimated Travel Time
Distance: 236 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 52m |
| 40 mph (64.37 km/h) | 03h 39m |
| 50 mph (80.47 km/h) | 02h 55m |
| 60 mph (96.56 km/h) | 02h 26m |
| 70 mph (112.65 km/h) | 02h 05m |
| 80 mph (129 km/h) | 01h 49m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $19.46 | $38.92 |
| Mid-grade | $4.25 | $21.95 | $43.89 |
| Premium | $4.65 | $24.01 | $48.03 |
| Diesel | $5.30 | $27.37 | $54.74 |
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 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.