Distance between cities › USA › Illinois › Walnut, IL › Distance from Walnut to Boulder Junction Book Hotels

Distance from Walnut, IL to Boulder Junction, WI

Distance

367 mi

Time

7 hours 20 mins

Gas Cost

$34 - $67

There are 314.82 miles from Walnut to Boulder Junction in north direction and 367 miles (590.63 kilometers) by car, following the I-39 route.

Walnut and Boulder Junction are 7 hours 20 mins far apart, if you drive non-stop .

This is the fastest route from Walnut, IL to Boulder Junction, WI.

Walnut, IL and Boulder Junction, WI are in the same time zone (CDT). Current time in both locations is 5:16 pm.

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Lowest Price Rental Cars in Walnut, IL

Planning on renting a car to go from Walnut, IL to Boulder Junction, WI? Here there are some offers to rent a car in Walnut, IL

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Walnut »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 14.74 gallons of gas to cover the route between Walnut, IL and Boulder Junction, WI.

The estimated cost of gas to go from Walnut to Boulder Junction is $48.09.

During the route, an average car will release 288.84 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Walnut, IL and Boulder Junction, WI

If you want to meet halfway between Walnut, IL and Boulder Junction, WI or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.543523 and -89.493233, or 43º 32' 36.6828" N, 89º 29' 35.6388" W. This location is 183.55 miles away from Walnut, IL and Boulder Junction, WI and it would take approximately 3 hours 40 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Portage, WI, situated 179 miles from Walnut, IL and 189 miles from Boulder Junction, WI. It would take 3 hours 34 mins to go from Walnut to Portage and 3 hours 52 mins to go from Boulder Junction to Portage.