Distance between cities › USA › Illinois › Ruma, IL › Distance from Ruma to Darby Book Hotels

Distance from Ruma, IL to Darby, MT

Distance

1,645 mi

Time

1 day 5 hours

Gas Cost

$153 - $298

There are 1,347.32 miles from Ruma to Darby in northwest direction and 1,645 miles (2,647.37 kilometers) by car, following the I-90 route.

Ruma and Darby are 1 day 5 hours far apart, if you drive non-stop .

This is the fastest route from Ruma, IL to Darby, MT.

Please note the time difference between Ruma, IL and Darby, MT is 1 hour. The current time in Ruma is 9:53 am and the current time in Darby is 8:53 am.

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Lowest Price Rental Cars in Ruma, IL

Planning on renting a car to go from Ruma, IL to Darby, MT? Here there are some offers to rent a car in Ruma, IL

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Ruma »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 66.06 gallons of gas to cover the route between Ruma, IL and Darby, MT.

The estimated cost of gas to go from Ruma to Darby is $215.49.

During the route, an average car will release 1,294.27 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 Ruma, IL and Darby, MT

If you want to meet halfway between Ruma, IL and Darby, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.886736 and -100.847705, or 43º 53' 12.2496" N, 100º 50' 51.738" W. This location is 822.46 miles away from Ruma, IL and Darby, MT and it would take approximately 14 hours 50 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Okaton, SD, situated 864 miles from Ruma, IL and 781 miles from Darby, MT. It would take 15 hours 19 mins to go from Ruma to Okaton and 14 hours 24 mins to go from Darby to Okaton.