Spanning 173.7 miles across Wisconsin, this trip from Denmark to Janesville is a straightforward journey typically taking about 3 hours and 25 minutes. Because the drive is manageable in a single day, you can easily complete it without needing an overnight stay. You should budget approximately $26 for fuel to cover the distance. Navigating through the Midwest, you will rely primarily on I-43, US-45, and US-14 to reach your destination. This route is ideal for travelers looking for a practical, highway-focused connection between these two Wisconsin locations. It serves as a reliable transit option, providing a consistent pace for those who prefer getting from point A to point B efficiently.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
86.9 miles from Denmark, WI
A natural place for your longest stop of the day
, about 1h 38m into the drive
.
Main Roads
Road
Distance
Duration
I 43
97.9 mi
1h 48m
US 45
45.6 mi
49m
US 14
14.5 mi
19m
East-West Freeway
4.8 mi
6m
Zoo Freeway
3.5 mi
4m
East Racine Street
2.7 mi
5m
Depere Road
0.7 mi
1m
South Randall Avenue
0.5 mi
1m
Longest stretch:
I 43
— 97.9 mi, about 1h 48m
Turn-by-Turn Driving Directions
Step-by-step road directions between Denmark, WI and City of Janesville, WI.
1
Start on this road
63 ft·10 sec·this road
2
Turn left onto CTH KB
0.1 mi·24 sec·Main Street
3
Continue on CTH KB
0.5 mi·1 min·Depere Road
4
Enter roundabout onto CTH KB
133 ft·7 sec·Depere Road
5
Continue on CTH KB
0.1 mi·15 sec·Depere Road
6
Continue on WI 96
0.1 mi·20 sec·WI 96
7
Turn left
0.3 mi·41 sec
8
Merge onto I 43
98 mi·1 hr 48 min·I 43
Use the straight / slight right lanes.
9
Take the exit
0.8 mi·1 min
Exit 72DToward I 94 West: MadisonUse the straight / slight right lanes.
10
Merge onto I 94
4.8 mi·6 min·East-West Freeway
Use the straight / slight left lanes.
11
Take the exit
0.2 mi·26 sec
Exit 305A-BToward I 41, US 45, I 894: Fond du Lac, ChicagoUse the slight right lane.
12
Keep slight left at fork
0.8 mi·1 min
Exit 305AToward I 41 South, I 894 South, US 45 South: ChicagoUse the straight / slight right lanes.
13
Keep slight left at fork
0.2 mi·28 sec
Toward I 41, I 894, US 45 South: Chicago
14
Merge onto I 41; I 894; US 41; US 45
3.5 mi·4 min·Zoo Freeway
Use the straight / slight right lanes.
15
Take the exit onto US 45
46 mi·49 min·US 45
Exit 4Toward I 43 South, US 45 South: BeloitUse the straight / slight left lanes.
16
Take the exit
0.3 mi·34 sec
Exit 15Toward US 14: Darien, JanesvilleUse the slight right lane.
17
Keep slight right at fork
121 ft·3 sec
18
Merge onto US 14
3.3 mi·4 min·US 14
19
Turn left onto US 14; WI 11
11 mi·15 min·US 14; WI 11
20
Turn left onto WI 11
1.5 mi·2 min·East Racine Street
21
Enter roundabout onto WI 11
118 ft·6 sec·East Racine Street
22
Continue on WI 11
0.1 mi·12 sec·East Racine Street
23
Enter roundabout onto East Racine Street
96 ft·5 sec·East Racine Street
24
Continue on East Racine Street
1.1 mi·2 min·East Racine Street
25
Turn right onto South Randall Avenue
0.5 mi·1 min·South Randall Avenue
26
Turn left onto CTH MM
0.5 mi·1 min·Ruger Avenue
27
At end of road, turn left onto East Court Street
0.1 mi·19 sec·East Court Street
28
Arrive at destination
East Court Street
Trip Plan
Since this is a one-day trip, you have plenty of flexibility regarding your departure time, though planning for a single well-timed stop will make the 3 hour and 25 minute duration feel much shorter. Given that the route is overwhelmingly highway-based, keep a steady eye on your fuel gauge before merging onto the longer stretches of I-43. If you are prone to fatigue during long, consistent highway segments, aim to schedule your break near the midpoint of the journey. Take advantage of the 97.9-mile stretch on I-43 to make good time early, but remain alert as you transition onto US-45 and US-14. Packing snacks and water beforehand is a smart move to maintain your energy without needing frequent detours.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 86.9 miles from Denmark, WI, or about 1h 38m into the drive.
The longest continuous stretch on this route runs about 97.9 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 38 miles or 44m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 86.9 miles or 1h 38m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 42m
Traffic, exits, and arrival timing usually matter more near City of Janesville, WI than in the middle of the route.
Before You Leave
+
Open the route before leaving Denmark, WI so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Denmark, WI
This is one driving day of about 173.7 miles and 3h 25m.
Your first comfortable stop window is around 38 miles from Denmark, WI.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 43 for about 97.9 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 20
5 decision points cluster between mile 99.2 and 155.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
99.2 mi into trip|~1h 51m in
Take the exit toward I 94 West: Madison
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 72D
Toward I 94 West: Madison
8
104.7 mi into trip|~2h in
Take the exit toward I 41, US 45, I 894: Fond du Lac, Chicago
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 305A-B
Toward I 41, US 45, I 894: Fond du Lac, Chicago
9
104.9 mi into trip|~2h in
Keep slight left at fork toward I 41 South, I 894 South, US 45 South: Chicago
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 305A
Toward I 41 South, I 894 South, US 45 South: Ch...
8
109.5 mi into trip|~2h 7m in|US 45
Take the exit onto US 45 toward I 43 South, US 45 South: Beloit
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight left lanes.
Exit 4
Toward I 43 South, US 45 South: Beloit
8
155.1 mi into trip|~2h 56m in
Take the exit toward US 14: Darien, Janesville
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 15
Toward US 14: Darien, Janesville
Fuel & Cost
Regular Gas
$27.16 one way
$54.31 round trip
$3.97/gal25.4 MPG avg61 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.36
$29.82
$59.63
premium
$4.89
$33.43
$66.85
diesel
$5.61
$38.35
$76.70
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$27
Meals
$25–$50
Total
$52–$77
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 60.8 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $18 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
52.1
0
$18.24
$8.34
Efficient EV
43.4
0
$15.20
$6.95
EV Truck/SUV
69.5
0
$24.32
$11.12
Gas CO2
61 kg
EV CO2
20 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 14, 2026
Origin
Denmark, WI
Night
in Denmark on Saturday
Local time
11:58 PM
CDT
Current temp
43°F
Unavailable
Live forecast
Destination
City of Janesville, WI
Night
in City of Janesville on Saturday
Local time
11:58 PM
CDT
Current temp
80°F
Chance Showers And Thunderstorms
S 10 to 15 mph35% chanceLive forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
37 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
3h 25m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
Expect a highly efficient transit experience, as 96% of this route consists of highway driving. You will spend a significant portion of the trip on I-43, which features the longest uninterrupted stretch of 97.9 miles. The character of the road is heavily skewed toward high-speed travel, making it well-suited for those who want to cover ground quickly. As you transition between the interstate and the US highway segments, the pace remains steady and predictable. It is a no-nonsense, highway-focused drive that minimizes navigation complexities, allowing you to settle into a consistent rhythm behind the wheel.
96% highway — fuel and pacing are the main things to plan.
28 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 97.9 mi on I 43.
How Hard Is This Drive?
10/10
This is a straightforward highway drive that stays mostly on I 43 and US 45. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 99.2 miles in.
Driving Effort10/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 20 significant decision points across 173.7 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 99.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 104.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 104.9 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Denmark, WI and City of Janesville, WI, road signs point toward Chicago and Janesville.
Chicago
104.7 mi in|~2h
Janesville
155.1 mi in|~2h 56m
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 3h 25m. Total distance: 173.7 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 25m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (96%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 97.9 miles on I 43. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at City of Janesville, WI before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 99.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 104.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 104.9 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Possible but tiring. At 3.4 hours each way, an in-and-out day trip would put you behind the wheel for 6.8 hours — manageable with a long break at City of Janesville, WI, but most travelers stay overnight.
