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

Distance from Walnut, IL to Acton, MT

Distance

1,172 mi

Time

20 hours 50 mins

Gas Cost

$109 - $212

There are 996.71 miles from Walnut to Acton in northwest direction and 1,172 miles (1,886.15 kilometers) by car, following the I-90 route.

Walnut and Acton are 20 hours 50 mins far apart, if you drive non-stop .

This is the fastest route from Walnut, IL to Acton, MT. The halfway point is White Lake, SD.

Please note the time difference between Walnut, IL and Acton, MT is 1 hour. The current time in Walnut is 2:40 pm and the current time in Acton is 1:40 pm.

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Lowest Price Rental Cars in Walnut, IL

Planning on renting a car to go from Walnut, IL to Acton, MT? 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 47.08 gallons of gas to cover the route between Walnut, IL and Acton, MT.

The estimated cost of gas to go from Walnut to Acton is $153.56.

During the route, an average car will release 922.30 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 Acton, MT

If you want to meet halfway between Walnut, IL and Acton, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.729206 and -98.837006, or 43º 43' 45.1416" N, 98º 50' 13.2216" W. This location is 586.09 miles away from Walnut, IL and Acton, MT and it would take approximately 10 hours 25 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is White Lake, SD, situated 622 miles from Walnut, IL and 626 miles from Acton, MT. It would take 9 hours 4 mins to go from Walnut to White Lake and 9 hours 4 mins to go from Acton to White Lake.