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

Distance from Walnut, IL to Alder, MT

Distance

1,375 mi

Time

1 day

Gas Cost

$128 - $249

There are 1,154.96 miles from Walnut to Alder in northwest direction and 1,375 miles (2,212.85 kilometers) by car, following the I-90 route.

Walnut and Alder are 1 day far apart, if you drive non-stop .

This is the fastest route from Walnut, IL to Alder, MT.

Please note the time difference between Walnut, IL and Alder, MT is 1 hour. The current time in Walnut is 2:40 pm and the current time in Alder 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 Alder, 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 55.24 gallons of gas to cover the route between Walnut, IL and Alder, MT.

The estimated cost of gas to go from Walnut to Alder is $180.18.

During the route, an average car will release 1,082.17 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 Alder, MT

If you want to meet halfway between Walnut, IL and Alder, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.908832 and -100.582433, or 43º 54' 31.7952" N, 100º 34' 56.7588" W. This location is 687.68 miles away from Walnut, IL and Alder, MT and it would take approximately 12 hours 23 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Draper, SD, situated 700 miles from Walnut, IL and 679 miles from Alder, MT. It would take 12 hours 31 mins to go from Walnut to Draper and 12 hours 24 mins to go from Alder to Draper.