This straightforward 71.6-mile drive from Janesville, WI, to Wauwatosa, WI, typically takes about 1 hour and 13 minutes. It's a perfect candidate for a day trip, requiring no overnight stays and fitting comfortably within a single day of travel. You'll navigate primarily on local roads, with Saint Lawrence Avenue and South Main Street being key parts of your journey. With a modest estimated fuel cost of $11, this route offers an economical way to travel between these two Midwest locations. Its direct nature and short duration make it a practical choice for a quick hop within Wisconsin.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
35.8 miles from Janesville, WI
A natural place for your longest stop of the day
, about 47m into the drive
.
Main Roads
Road
Distance
Duration
I 43
45.2 mi
48m
US 14
14.2 mi
19m
Zoo Freeway
5.1 mi
7m
East Delavan Drive
2 mi
2m
East County Road O
1.1 mi
1m
West Watertown Plank Road
0.9 mi
2m
South Main Street
0.8 mi
2m
US 45
0.6 mi
<1m
Longest stretch:
I 43
— 45.2 mi, about 48m
Turn-by-Turn Driving Directions
Step-by-step road directions between Janesville, WI and Wauwatosa, WI.
1
Start on this road
124 ft·11 sec·this road
2
At end of road, turn right onto Saint Lawrence Avenue
0.2 mi·43 sec·Saint Lawrence Avenue
3
Turn left onto South Main Street
0.8 mi·2 min·South Main Street
4
Continue on Beloit Avenue
0.4 mi·1 min·Beloit Avenue
5
Turn left onto CTH O
2.0 mi·2 min·East Delavan Drive
6
Continue on CTH O
1.1 mi·1 min·East County Road O
7
Turn right onto US 14; WI 11
11 mi·14 min·US 14; WI 11
8
Continue on US 14
3.5 mi·4 min·US 14
9
Turn left
0.4 mi·47 sec
10
Merge onto I 43
45 mi·48 min·I 43
Use the straight / slight right lanes.
11
Take the exit onto US 45
0.6 mi·55 sec·US 45
Exit 61Toward I 41 North, US 45 North, I 894 West: Fond du Lac, Madison
12
Merge onto I 41; I 894; US 41; US 45
5.1 mi·7 min·Zoo Freeway
Use the slight right lane.
13
Take the exit
0.2 mi·20 sec
Exit 40A-BToward Watertown Plank RoadUse the slight right lane.
14
Keep slight right at fork
0.1 mi·24 sec
Exit 40AToward Watertown Plank Road EastUse the right lane.
15
Turn straight onto West Watertown Plank Road
0.9 mi·2 min·West Watertown Plank Road
Use the left lane.
16
Continue on Harwood Avenue
0.3 mi·51 sec·Harwood Avenue
Use the straight / right lanes.
17
Turn left onto WI 181
0.2 mi·32 sec·Harmonee Avenue
Use the left / straight lanes.
18
Turn right onto West Menomonee River Parkway
498 ft·21 sec·West Menomonee River Parkway
19
Arrive at destination
West State Street
Trip Plan
Given the relatively short duration of just over an hour, this drive offers a lot of flexibility. You can depart at your leisure, but consider leaving mid-morning to avoid potential rush hour congestion in and around the Milwaukee metropolitan area. Since there are no designated stops and the drive is under two hours, you likely won't need to plan for extensive breaks. Keep an eye on your fuel gauge, especially if you're starting with less than a full tank, as the estimated fuel cost is $11. A good specific tip for this route is to familiarize yourself with the main road names like Saint Lawrence Avenue and South Main Street beforehand, as they are crucial to staying on track.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 35.8 miles from Janesville, WI, or about 47m into the drive.
The longest continuous stretch on this route runs about 45.2 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 16 miles or 24m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 35.8 miles or 47m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 14m
Traffic, exits, and arrival timing usually matter more near Wauwatosa, WI than in the middle of the route.
Before You Leave
+
Open the route before leaving Janesville, WI so your first major turns are already loaded.
Day 1
Settle into the route from Janesville, WI
This is one driving day of about 71.6 miles and 1h 30m.
Your first comfortable stop window is around 16 miles from Janesville, WI.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on I 43 for about 45.2 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 13
5 decision points cluster between mile 0 and 71.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0 mi into trip|~0m in|Saint Lawrence Avenue
At end of road, turn right onto Saint Lawrence Avenue
Complex interchange - multiple decisions in a short stretch
6
64.1 mi into trip|~1h 17m in|US 45
Take the exit onto US 45 toward I 41 North, US 45 North, I 894 West: Fond du Lac, Madison
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 61
Toward I 41 North, US 45 North, I 894 West: Fon...
7
69.8 mi into trip|~1h 25m in
Take the exit toward Watertown Plank Road
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 40A-B
Toward Watertown Plank Road
9
70 mi into trip|~1h 26m in
Keep slight right at fork toward Watertown Plank Road East
Highway fork - watch signs carefully. Lane positioning matters here
Use the right lane.
Exit 40A
Toward Watertown Plank Road East
6
71.3 mi into trip|~1h 29m in|WI 181 / Harmonee Avenue
Turn left onto WI 181 / Harmonee Avenue
Lane positioning matters here
Use the left / straight lanes.
Fuel & Cost
Regular Gas
$11.19 one way
$22.39 round trip
$3.97/gal25.4 MPG avg25 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.36
$12.29
$24.58
premium
$4.89
$13.78
$27.56
diesel
$5.61
$15.81
$31.62
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$11
Meals
$25–$50
Total
$36–$61
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 25.1 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $8 in charging
· 0 stops
· 68% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
21.5
0
$7.52
$3.44
Efficient EV
17.9
0
$6.26
$2.86
EV Truck/SUV
28.6
0
$10.02
$4.58
Gas CO2
25 kg
EV CO2
8 kg (68% 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 15, 2026
Origin
Janesville, WI
Morning
in Janesville on Sunday
Local time
10:12 AM
CDT
Current temp
48°F
Unavailable
Live forecast
Destination
Wauwatosa, WI
Morning
in Wauwatosa on Sunday
Local time
10:12 AM
CDT
Current temp
47°F
Unavailable
Live forecast
47°F
Lyons, WI
36 mi in
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
1 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
1h 30m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
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 turn-heavy local drive on this route, as indicated by the 0% highway share. You won't encounter long stretches of high-speed highway; instead, you'll be navigating through communities using roads like Beloit Avenue. The absence of a 'longest stretch' metric suggests a more continuous series of turns and local road segments rather than any prolonged, uninterrupted driving periods. This type of driving requires consistent attention to navigation and speed adjustments as you pass through various towns and neighborhoods.
91% highway — fuel and pacing are the main things to plan.
19 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 45.2 mi on I 43.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on I 43 and US 14. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near Saint Lawrence Avenue.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 71.6 miles you will encounter 13 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: near the start (Saint Lawrence Avenue): Complex interchange - multiple decisions in a short stretch; at 64.1 miles (US 45): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 69.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Janesville, WI to Wauwatosa, WI, road signs begin pointing toward Madison along the way.
Madison
64.1 mi in|~1h 17m|via US 45
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 1h 30m. Total distance: 71.6 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 30m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (91%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 45.2 miles on I 43. The full list of main roads is in the Roads section above.
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 Wauwatosa, WI before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: near the start (Saint Lawrence Avenue): Complex interchange - multiple decisions in a short stretch; at 64.1 miles (US 45): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 69.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Yes. A round trip is manageable in a single day if you plan a break at Wauwatosa, WI before heading back.
